Refactor USB screen, add debug logging, fix UI issues

- Rewrite UsbScreen to mirror ScannerScreen patterns (status bar,
  tap-to-connect port list, bottom FABs, SnackBar errors)
- Extract MeshCoreUsbManager from MeshCoreConnector for cleaner
  USB transport ownership
- Add debug logging throughout USB connection flow (connector,
  manager, web/native services)
- Print debug logs to console in debug mode even when app debug
  log setting is disabled
- Localize remaining hardcoded strings (Web Serial Device fallback
  label, USB status bar keys, companion firmware timeout hint)
- Fix Swedish misspelling in translations (stöderliga → stödda)
- Guard Linux notification init against missing D-Bus session bus
- Fix SNRIndicator hit-test error by adding minimum size constraints
- Update USB flow tests for new UI patterns

.github/workflows/deploy.yml

@@ -0,0 +1,38 @@
+name: Deploy to Cloudflare Workers
+
+on:
+  push:
+    tags:
+      - '*'
+  workflow_dispatch:
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      
+      - name: Setup Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          channel: 'stable'
+          # Match local development version which provides Dart 3.11.0
+          flutter-version: '3.41.2'
+
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: latest
+
+      - name: Get dependencies
+        run: flutter pub get
+
+      - name: Build Web
+        run: bun run build
+
+      - name: Deploy to Cloudflare
+        uses: cloudflare/wrangler-action@v3
+        with:
+          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
+          accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
+          command: deploy

.gitignore

@@ -30,6 +30,7 @@ migrate_working_dir/
 .flutter-plugins-dependencies
 .pub-cache/
 .pub/
+pubspec.lock
 /build/
 /coverage/
 
@@ -82,3 +83,6 @@ keystore.properties
 # IDE
 .vscode/launch.json
 .vscode/settings.json
+
+# Cloudflare Wrangler
+.wrangler

.ruby-version

@@ -0,0 +1 @@
+4.0.0

README.md

@@ -78,6 +78,7 @@ MeshCore Open is a cross-platform mobile application for communicating with Mesh
 - ✅ **Android**: Full support (API 21+)
 - ✅ **iOS**: Full support (iOS 12+)
 - 🚧 **Desktop**: Limited support (macOS/Linux/Windows)
+- 🚧 **Web**: Under construction (Chrome)
 
 ### Dependencies
 
@@ -230,6 +231,11 @@ If you find MeshCore Open useful and would like to support development, you can
 
 **Solana Address:** `F15YanjZj96YTBtKJYgNa8RLQLCZkx5CEwogPWkqXeoQ`
 
+
+**Monero Address:** `453TxnpUqjkJtXxzdjMsrgERNkBRXEGamPbpC45ENrvKAk9tH7kZbxWF82Hz66etgDZyXFPEBU2JUEqhLeJyWt9kBvTVy5m`
+
+**Bitcoin Address:** `bc1qh45x28v8dslcg4v4upmqd9g0mvc3lnyffmyzr5`
+
 Your support helps maintain and improve this open-source project!
 
 ## Acknowledgments

android/app/build.gradle.kts

@@ -19,13 +19,13 @@ android {
     ndkVersion = flutter.ndkVersion
 
     compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_11
+        sourceCompatibility = JavaVersion.VERSION_17
-        targetCompatibility = JavaVersion.VERSION_11
+        targetCompatibility = JavaVersion.VERSION_17
         isCoreLibraryDesugaringEnabled = true
     }
 
     kotlinOptions {
-        jvmTarget = JavaVersion.VERSION_11.toString()
+        jvmTarget = JavaVersion.VERSION_17.toString()
     }
 
     defaultConfig {

android/app/src/main/AndroidManifest.xml

@@ -19,6 +19,7 @@
     <!-- Camera permission for QR code scanning -->
     <uses-permission android:name="android.permission.CAMERA"/>
     <uses-feature android:name="android.hardware.camera" android:required="false"/>
+    <uses-feature android:name="android.hardware.usb.host" android:required="false"/>
 
     <application
         android:label="meshcore_open"

android/app/src/main/kotlin/com/meshcore/meshcore_open/MainActivity.kt

@@ -1,5 +1,18 @@
 package com.meshcore.meshcore_open
 
 import io.flutter.embedding.android.FlutterActivity
+import io.flutter.embedding.engine.FlutterEngine
 
-class MainActivity : FlutterActivity()
+class MainActivity : FlutterActivity() {
+    private val usbFunctions by lazy { MeshcoreUsbFunctions(this) }
+
+    override fun configureFlutterEngine(flutterEngine: FlutterEngine) {
+        super.configureFlutterEngine(flutterEngine)
+        usbFunctions.configureFlutterEngine(flutterEngine)
+    }
+
+    override fun onDestroy() {
+        usbFunctions.dispose()
+        super.onDestroy()
+    }
+}

android/app/src/main/kotlin/com/meshcore/meshcore_open/MeshcoreUsbFunctions.kt

@@ -0,0 +1,582 @@
+package com.meshcore.meshcore_open
+
+import android.app.PendingIntent
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import android.content.IntentFilter
+import android.hardware.usb.UsbConstants
+import android.hardware.usb.UsbDevice
+import android.hardware.usb.UsbDeviceConnection
+import android.hardware.usb.UsbEndpoint
+import android.hardware.usb.UsbInterface
+import android.hardware.usb.UsbManager
+import android.os.Build
+import android.os.Handler
+import android.os.Looper
+import io.flutter.embedding.android.FlutterActivity
+import io.flutter.embedding.engine.FlutterEngine
+import io.flutter.plugin.common.EventChannel
+import io.flutter.plugin.common.MethodCall
+import io.flutter.plugin.common.MethodChannel
+import java.util.Locale
+import java.util.concurrent.ExecutorService
+import java.util.concurrent.Executors
+
+class MeshcoreUsbFunctions(
+    private val activity: FlutterActivity,
+) {
+    private companion object {
+        const val usbRecipientInterface = 0x01
+    }
+
+    private val usbMethodChannelName = "meshcore_open/android_usb_serial"
+    private val usbEventChannelName = "meshcore_open/android_usb_serial_events"
+    private val usbPermissionAction = "com.meshcore.meshcore_open.USB_PERMISSION"
+
+    private val usbManager by lazy {
+        activity.getSystemService(Context.USB_SERVICE) as UsbManager
+    }
+    private val mainHandler = Handler(Looper.getMainLooper())
+    private val usbIoExecutor: ExecutorService = Executors.newSingleThreadExecutor()
+
+    @Volatile private var eventSink: EventChannel.EventSink? = null
+    @Volatile private var usbConnection: UsbDeviceConnection? = null
+    @Volatile private var usbInEndpoint: UsbEndpoint? = null
+    @Volatile private var usbOutEndpoint: UsbEndpoint? = null
+    @Volatile private var controlInterface: UsbInterface? = null
+    @Volatile private var dataInterface: UsbInterface? = null
+    private var readThread: Thread? = null
+    @Volatile private var isReading = false
+    @Volatile private var connectedDeviceName: String? = null
+
+    private var pendingConnectResult: MethodChannel.Result? = null
+    private var pendingConnectPortName: String? = null
+    private var pendingConnectBaudRate: Int = 115200
+
+    private data class PortConfig(
+        val controlInterface: UsbInterface?,
+        val dataInterface: UsbInterface,
+        val inEndpoint: UsbEndpoint,
+        val outEndpoint: UsbEndpoint,
+    )
+
+    private val permissionReceiver =
+        object : BroadcastReceiver() {
+            override fun onReceive(context: Context?, intent: Intent?) {
+                when (intent?.action) {
+                    UsbManager.ACTION_USB_DEVICE_DETACHED -> {
+                        handleUsbDetached(intent)
+                        return
+                    }
+                    usbPermissionAction -> Unit
+                    else -> return
+                }
+
+                val result = pendingConnectResult
+                val portName = pendingConnectPortName
+                pendingConnectResult = null
+                pendingConnectPortName = null
+
+                if (result == null || portName == null) {
+                    return
+                }
+
+                val device = findUsbDevice(portName)
+                if (device == null) {
+                    result.error(
+                        "usb_device_missing",
+                        null,
+                        null,
+                    )
+                    return
+                }
+
+                val granted =
+                    intent.getBooleanExtra(UsbManager.EXTRA_PERMISSION_GRANTED, false)
+                if (!granted || !usbManager.hasPermission(device)) {
+                    result.error("usb_permission_denied", null, null)
+                    return
+                }
+
+                openUsbDevice(device, pendingConnectBaudRate, result)
+            }
+        }
+
+    fun configureFlutterEngine(flutterEngine: FlutterEngine) {
+        registerUsbPermissionReceiver()
+
+        MethodChannel(flutterEngine.dartExecutor.binaryMessenger, usbMethodChannelName)
+            .setMethodCallHandler { call, result ->
+                when (call.method) {
+                    "listPorts" -> result.success(listUsbPorts())
+                    "connect" -> handleUsbConnect(call, result)
+                    "write" -> handleUsbWrite(call, result)
+                    "disconnect" -> {
+                        scheduleCloseUsbConnection {
+                            result.success(null)
+                        }
+                    }
+                    else -> result.notImplemented()
+                }
+            }
+
+        EventChannel(flutterEngine.dartExecutor.binaryMessenger, usbEventChannelName)
+            .setStreamHandler(
+                object : EventChannel.StreamHandler {
+                    override fun onListen(arguments: Any?, events: EventChannel.EventSink) {
+                        eventSink = events
+                    }
+
+                    override fun onCancel(arguments: Any?) {
+                        eventSink = null
+                    }
+                },
+            )
+    }
+
+    fun dispose() {
+        closeUsbConnection()
+        usbIoExecutor.shutdownNow()
+        try {
+            activity.unregisterReceiver(permissionReceiver)
+        } catch (_: IllegalArgumentException) {
+        }
+    }
+
+    private fun registerUsbPermissionReceiver() {
+        val filter =
+            IntentFilter().apply {
+                addAction(usbPermissionAction)
+                addAction(UsbManager.ACTION_USB_DEVICE_DETACHED)
+            }
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            activity.registerReceiver(permissionReceiver, filter, Context.RECEIVER_NOT_EXPORTED)
+        } else {
+            @Suppress("DEPRECATION")
+            activity.registerReceiver(permissionReceiver, filter)
+        }
+    }
+
+    private fun listUsbPorts(): List<String> {
+        return usbManager.deviceList.values.map { device ->
+            val productName = device.productName ?: "USB Serial Device"
+            val vendorProduct =
+                String.format(
+                    Locale.US,
+                    "VID:%04X PID:%04X",
+                    device.vendorId,
+                    device.productId,
+                )
+            "${device.deviceName} - $productName - $vendorProduct"
+        }
+    }
+
+    private fun handleUsbConnect(call: MethodCall, result: MethodChannel.Result) {
+        val portName = call.argument<String>("portName")
+        val baudRate = call.argument<Int>("baudRate") ?: 115200
+        if (portName.isNullOrBlank()) {
+            result.error("usb_invalid_port", null, null)
+            return
+        }
+
+        val device = findUsbDevice(portName)
+        if (device == null) {
+            result.error("usb_device_missing", null, null)
+            return
+        }
+
+        if (usbManager.hasPermission(device)) {
+            openUsbDevice(device, baudRate, result)
+            return
+        }
+
+        if (pendingConnectResult != null) {
+            result.error("usb_busy", null, null)
+            return
+        }
+
+        pendingConnectResult = result
+        pendingConnectPortName = portName
+        pendingConnectBaudRate = baudRate
+
+        val permissionIntent = PendingIntent.getBroadcast(
+            activity,
+            0,
+            Intent(usbPermissionAction).setPackage(activity.packageName),
+            pendingIntentFlags(),
+        )
+        usbManager.requestPermission(device, permissionIntent)
+    }
+
+    private fun handleUsbWrite(call: MethodCall, result: MethodChannel.Result) {
+        val data = call.argument<ByteArray>("data")
+        val connection = usbConnection
+        val endpoint = usbOutEndpoint
+        if (data == null) {
+            result.error("usb_invalid_data", null, null)
+            return
+        }
+        if (connection == null || endpoint == null) {
+            result.error("usb_not_connected", null, null)
+            return
+        }
+
+        usbIoExecutor.execute {
+            try {
+                writeToDevice(data)
+                mainHandler.post { result.success(null) }
+            } catch (error: Exception) {
+                mainHandler.post {
+                    result.error("usb_write_failed", error.message, null)
+                }
+            }
+        }
+    }
+
+    private fun findUsbDevice(portName: String): UsbDevice? {
+        val devices = usbManager.deviceList.values
+        val exactMatch = devices.firstOrNull { it.deviceName == portName }
+        if (exactMatch != null) {
+            return exactMatch
+        }
+
+        val normalizedName = portName.substringBefore(" - ").trim()
+        return devices.firstOrNull { it.deviceName == normalizedName }
+    }
+
+    private fun openUsbDevice(
+        device: UsbDevice,
+        baudRate: Int,
+        result: MethodChannel.Result,
+    ) {
+        usbIoExecutor.execute {
+            try {
+                closeUsbConnection()
+
+                val config = resolvePortConfig(device)
+                if (config == null) {
+                    mainHandler.post {
+                        result.error(
+                            "usb_driver_missing",
+                            null,
+                            null,
+                        )
+                    }
+                    return@execute
+                }
+
+                val connection = usbManager.openDevice(device)
+                if (connection == null) {
+                    mainHandler.post {
+                        result.error(
+                            "usb_open_failed",
+                            null,
+                            null,
+                        )
+                    }
+                    return@execute
+                }
+
+                if (!connection.claimInterface(config.dataInterface, true)) {
+                    connection.close()
+                    mainHandler.post {
+                        result.error(
+                            "usb_open_failed",
+                            null,
+                            null,
+                        )
+                    }
+                    return@execute
+                }
+
+                if (config.controlInterface != null &&
+                    config.controlInterface.id != config.dataInterface.id &&
+                    !connection.claimInterface(config.controlInterface, true)
+                ) {
+                    connection.releaseInterface(config.dataInterface)
+                    connection.close()
+                    mainHandler.post {
+                        result.error(
+                            "usb_open_failed",
+                            null,
+                            null,
+                        )
+                    }
+                    return@execute
+                }
+
+                usbConnection = connection
+                usbInEndpoint = config.inEndpoint
+                usbOutEndpoint = config.outEndpoint
+                controlInterface = config.controlInterface
+                dataInterface = config.dataInterface
+
+                configureDevice(connection, config, baudRate)
+
+                connectedDeviceName = device.deviceName
+                startReadLoop()
+
+                mainHandler.post {
+                    result.success(null)
+                }
+            } catch (error: Exception) {
+                closeUsbConnection()
+                mainHandler.post {
+                    result.error("usb_connect_failed", error.message, null)
+                }
+            }
+        }
+    }
+
+    private fun resolvePortConfig(device: UsbDevice): PortConfig? {
+        var preferredDataInterface: UsbInterface? = null
+        var preferredInEndpoint: UsbEndpoint? = null
+        var preferredOutEndpoint: UsbEndpoint? = null
+        var fallbackDataInterface: UsbInterface? = null
+        var fallbackInEndpoint: UsbEndpoint? = null
+        var fallbackOutEndpoint: UsbEndpoint? = null
+        var preferredControlInterface: UsbInterface? = null
+
+        for (interfaceIndex in 0 until device.interfaceCount) {
+            val usbInterface = device.getInterface(interfaceIndex)
+            var inEndpoint: UsbEndpoint? = null
+            var outEndpoint: UsbEndpoint? = null
+
+            for (endpointIndex in 0 until usbInterface.endpointCount) {
+                val endpoint = usbInterface.getEndpoint(endpointIndex)
+                if (endpoint.type != UsbConstants.USB_ENDPOINT_XFER_BULK) {
+                    continue
+                }
+                when (endpoint.direction) {
+                    UsbConstants.USB_DIR_IN -> if (inEndpoint == null) inEndpoint = endpoint
+                    UsbConstants.USB_DIR_OUT -> if (outEndpoint == null) outEndpoint = endpoint
+                }
+            }
+
+            val hasDataPair = inEndpoint != null && outEndpoint != null
+            when {
+                usbInterface.interfaceClass == UsbConstants.USB_CLASS_COMM &&
+                    preferredControlInterface == null -> {
+                    preferredControlInterface = usbInterface
+                }
+                hasDataPair &&
+                    usbInterface.interfaceClass == UsbConstants.USB_CLASS_CDC_DATA -> {
+                    preferredDataInterface = usbInterface
+                    preferredInEndpoint = inEndpoint
+                    preferredOutEndpoint = outEndpoint
+                }
+                hasDataPair && fallbackDataInterface == null -> {
+                    fallbackDataInterface = usbInterface
+                    fallbackInEndpoint = inEndpoint
+                    fallbackOutEndpoint = outEndpoint
+                }
+            }
+        }
+
+        val dataInterface = preferredDataInterface ?: fallbackDataInterface ?: return null
+        val inEndpoint = preferredInEndpoint ?: fallbackInEndpoint ?: return null
+        val outEndpoint = preferredOutEndpoint ?: fallbackOutEndpoint ?: return null
+        return PortConfig(preferredControlInterface, dataInterface, inEndpoint, outEndpoint)
+    }
+
+    private fun configureDevice(
+        connection: UsbDeviceConnection,
+        config: PortConfig,
+        baudRate: Int,
+    ) {
+        val control = config.controlInterface ?: return
+        val lineCoding =
+            byteArrayOf(
+                (baudRate and 0xFF).toByte(),
+                ((baudRate shr 8) and 0xFF).toByte(),
+                ((baudRate shr 16) and 0xFF).toByte(),
+                ((baudRate shr 24) and 0xFF).toByte(),
+                0, // stop bits: 1
+                0, // parity: none
+                8, // data bits
+            )
+
+                val lineCodingResult =
+            connection.controlTransfer(
+                UsbConstants.USB_DIR_OUT or
+                    UsbConstants.USB_TYPE_CLASS or
+                    usbRecipientInterface,
+                0x20,
+                0,
+                control.id,
+                lineCoding,
+                lineCoding.size,
+                1000,
+            )
+        if (lineCodingResult < 0) {
+            throw IllegalStateException("Failed to configure USB line coding")
+        }
+
+        val controlLineResult =
+            connection.controlTransfer(
+                UsbConstants.USB_DIR_OUT or
+                    UsbConstants.USB_TYPE_CLASS or
+                    usbRecipientInterface,
+                0x22,
+                0x0001, // DTR on, RTS off
+                control.id,
+                null,
+                0,
+                1000,
+            )
+        if (controlLineResult < 0) {
+            throw IllegalStateException("Failed to configure USB control line state")
+        }
+    }
+
+    private fun startReadLoop() {
+        val connection = usbConnection ?: return
+        val endpoint = usbInEndpoint ?: return
+
+        isReading = true
+        readThread =
+            Thread({
+                val packetSize = endpoint.maxPacketSize.coerceAtLeast(64)
+                val buffer = ByteArray(packetSize * 4)
+                try {
+                    while (isReading) {
+                        val bytesRead = connection.bulkTransfer(endpoint, buffer, buffer.size, 250)
+                        if (!isReading) {
+                            break
+                        }
+                        if (bytesRead <= 0) {
+                            continue
+                        }
+                        val packet = buffer.copyOf(bytesRead)
+                        mainHandler.post {
+                            eventSink?.success(packet)
+                        }
+                    }
+                } catch (error: Exception) {
+                    if (isReading) {
+                        mainHandler.post {
+                            eventSink?.error(
+                                "usb_io_error",
+                                error.message ?: "USB serial I/O error",
+                                null,
+                            )
+                        }
+                        scheduleCloseUsbConnection()
+                    }
+                }
+            }, "MeshCoreUsbRead").also { thread ->
+                thread.isDaemon = true
+                thread.start()
+            }
+    }
+
+    private fun writeToDevice(data: ByteArray) {
+        val connection = usbConnection ?: throw IllegalStateException("USB connection missing")
+        val endpoint = usbOutEndpoint ?: throw IllegalStateException("USB output endpoint missing")
+        var offset = 0
+        val maxPacketSize = endpoint.maxPacketSize.coerceAtLeast(64)
+        while (offset < data.size) {
+            val chunkSize = minOf(maxPacketSize, data.size - offset)
+            val chunk = data.copyOfRange(offset, offset + chunkSize)
+            val bytesWritten = connection.bulkTransfer(endpoint, chunk, chunkSize, 1000)
+            if (bytesWritten != chunkSize) {
+                throw IllegalStateException("Short USB write: wrote $bytesWritten of $chunkSize bytes")
+            }
+            offset += chunkSize
+        }
+    }
+
+    private fun scheduleCloseUsbConnection(onComplete: (() -> Unit)? = null) {
+        usbIoExecutor.execute {
+            closeUsbConnection()
+            if (onComplete != null) {
+                mainHandler.post(onComplete)
+            }
+        }
+    }
+
+    @Synchronized
+    private fun closeUsbConnection() {
+        isReading = false
+        readThread?.interrupt()
+        if (readThread != null && readThread !== Thread.currentThread()) {
+            try {
+                readThread?.join(300)
+            } catch (_: InterruptedException) {
+                Thread.currentThread().interrupt()
+            }
+        }
+        readThread = null
+
+        val connection = usbConnection
+        val claimedControl = controlInterface
+        val claimedData = dataInterface
+
+        usbInEndpoint = null
+        usbOutEndpoint = null
+        controlInterface = null
+        dataInterface = null
+        usbConnection = null
+
+        if (connection != null) {
+            if (claimedControl != null) {
+                try {
+                    connection.releaseInterface(claimedControl)
+                } catch (_: Exception) {
+                }
+            }
+            if (claimedData != null && claimedData.id != claimedControl?.id) {
+                try {
+                    connection.releaseInterface(claimedData)
+                } catch (_: Exception) {
+                }
+            }
+            try {
+                connection.close()
+            } catch (_: Exception) {
+            }
+        }
+        connectedDeviceName = null
+    }
+
+    private fun handleUsbDetached(intent: Intent) {
+        val detachedDevice =
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+                intent.getParcelableExtra(UsbManager.EXTRA_DEVICE, UsbDevice::class.java)
+            } else {
+                @Suppress("DEPRECATION")
+                intent.getParcelableExtra(UsbManager.EXTRA_DEVICE)
+            }
+
+        val detachedName = detachedDevice?.deviceName ?: return
+
+        if (pendingConnectPortName == detachedName) {
+            pendingConnectResult?.error(
+                "usb_device_detached",
+                "USB device was removed before the connection completed",
+                null,
+            )
+            pendingConnectResult = null
+            pendingConnectPortName = null
+        }
+
+        if (connectedDeviceName == detachedName) {
+            scheduleCloseUsbConnection {
+                eventSink?.error(
+                    "usb_device_detached",
+                    "USB device was disconnected",
+                    null,
+                )
+            }
+        }
+    }
+
+    private fun pendingIntentFlags(): Int {
+        var flags = PendingIntent.FLAG_UPDATE_CURRENT
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+            flags = flags or PendingIntent.FLAG_MUTABLE
+        }
+        return flags
+    }
+}

assets/icons/done_all.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="24px" viewBox="0 -960 960 960" width="24px" fill="#e3e3e3"><path d="M268-240 42-466l57-56 170 170 56 56-57 56Zm226 0L268-466l56-57 170 170 368-368 56 57-424 424Zm0-226-57-56 198-198 57 56-198 198Z"/></svg>

lib/connector/meshcore_connector_usb.dart

@@ -0,0 +1,71 @@
+import 'dart:typed_data';
+
+import '../services/app_debug_log_service.dart';
+import '../services/usb_serial_service.dart';
+
+/// Manages USB serial transport for MeshCore devices.
+///
+/// Owns the [UsbSerialService] and USB-specific connection state.
+/// The main [MeshCoreConnector] delegates all USB operations here.
+class MeshCoreUsbManager {
+  MeshCoreUsbManager();
+
+  final UsbSerialService _service = UsbSerialService();
+  AppDebugLogService? _debugLog;
+  String? _activePortKey;
+  String? _activePortLabel;
+
+  // --- Getters ---
+  String? get activePortKey => _activePortKey;
+  String? get activePortDisplayLabel => _activePortLabel ?? _activePortKey;
+  bool get isConnected => _service.isConnected;
+  Stream<Uint8List> get frameStream => _service.frameStream;
+
+  // --- Configuration ---
+  Future<List<String>> listPorts() => _service.listPorts();
+
+  void setRequestPortLabel(String label) =>
+      _service.setRequestPortLabel(label);
+
+  void setFallbackDeviceName(String label) =>
+      _service.setFallbackDeviceName(label);
+
+  void setDebugLogService(AppDebugLogService? service) {
+    _debugLog = service;
+    _service.setDebugLogService(service);
+  }
+
+  // --- Connection lifecycle ---
+  Future<void> connect({required String portName, int baudRate = 115200}) async {
+    _debugLog?.info(
+      'UsbManager.connect: portName=$portName baud=$baudRate',
+      tag: 'USB',
+    );
+    await _service.connect(portName: portName, baudRate: baudRate);
+    _activePortKey = _service.activePortKey ?? portName;
+    _activePortLabel = _service.activePortDisplayLabel ?? portName;
+    _debugLog?.info(
+      'UsbManager.connect: done, key=$_activePortKey label=$_activePortLabel',
+      tag: 'USB',
+    );
+  }
+
+  Future<void> disconnect() async {
+    _debugLog?.info('UsbManager.disconnect', tag: 'USB');
+    await _service.disconnect();
+    _activePortKey = null;
+    _activePortLabel = null;
+  }
+
+  Future<void> write(Uint8List data) => _service.write(data);
+
+  // --- Label management ---
+  void updateConnectedLabel(String selfName) {
+    _service.updateConnectedLabel(selfName);
+    _activePortLabel = _service.activePortDisplayLabel ?? _activePortLabel;
+  }
+
+  void dispose() {
+    _service.dispose();
+  }
+}

lib/connector/meshcore_protocol.dart

@@ -13,19 +13,35 @@ class BufferReader {
   int readByte() => readBytes(1)[0];
 
   Uint8List readBytes(int count) {
+    if (_pointer + count > _buffer.length) {
+      throw RangeError(
+        'Attempted to read $count bytes at offset $_pointer, but only $remaining bytes remaining in buffer of length ${_buffer.length}',
+      );
+    }
     final data = _buffer.sublist(_pointer, _pointer + count);
     _pointer += count;
     return data;
   }
 
   void skipBytes(int count) {
+    if (_pointer + count > _buffer.length) {
+      throw RangeError(
+        'Attempted to skip $count bytes at offset $_pointer, but only $remaining bytes remaining in buffer of length ${_buffer.length}',
+      );
+    }
     _pointer += count;
   }
 
   Uint8List readRemainingBytes() => readBytes(remaining);
 
-  String readString() =>
+  String readString() {
-      utf8.decode(readRemainingBytes(), allowMalformed: true);
+    final value = readRemainingBytes();
+    try {
+      return utf8.decode(Uint8List.fromList(value), allowMalformed: true);
+    } catch (e) {
+      return String.fromCharCodes(value); // Latin-1 fallback
+    }
+  }
 
   String readCString(int maxLength) {
     final value = <int>[];
@@ -104,25 +120,27 @@ class BufferWriter {
   }
 
   void writeHex(String hex) {
-    // Validate hex string length is even and not empty
+    writeBytes(hex2Uint8List(hex));
-    if (hex.isEmpty || hex.length % 2 != 0) {
-      throw FormatException('Invalid hex string length: ${hex.length}');
-    }
-    List<int> result = [];
-    for (int i = 0; i < hex.length ~/ 2; i++) {
-      final hexByte = hex.substring(i * 2, i * 2 + 2);
-      final byte = int.tryParse(hexByte, radix: 16);
-      if (byte == null) {
-        throw FormatException(
-          'Invalid hex characters at position $i: $hexByte',
-        );
-      }
-      result.add(byte);
-    }
-    writeBytes(Uint8List.fromList(result));
   }
 }
 
+Uint8List hex2Uint8List(String hex) {
+  // Validate hex string length is even and not empty
+  if (hex.isEmpty || hex.length % 2 != 0) {
+    throw FormatException('Invalid hex string length: ${hex.length}');
+  }
+  List<int> result = [];
+  for (int i = 0; i < hex.length ~/ 2; i++) {
+    final hexByte = hex.substring(i * 2, i * 2 + 2);
+    final byte = int.tryParse(hexByte, radix: 16);
+    if (byte == null) {
+      throw FormatException('Invalid hex characters at position $i: $hexByte');
+    }
+    result.add(byte);
+  }
+  return Uint8List.fromList(result);
+}
+
 // Command codes (to device)
 const int cmdAppStart = 1;
 const int cmdSendTxtMsg = 2;
@@ -151,11 +169,14 @@ const int cmdGetContactByKey = 30;
 const int cmdGetChannel = 31;
 const int cmdSetChannel = 32;
 const int cmdSendTracePath = 36;
-const int cmdGetRadioSettings = 57;
+const int cmdSetOtherParams = 38;
+const int cmdSendAnonReq = 57;
 const int cmdGetTelemetryReq = 39;
 const int cmdGetCustomVar = 40;
 const int cmdSetCustomVar = 41;
 const int cmdSendBinaryReq = 50;
+const int cmdSetAutoAddConfig = 58;
+const int cmdGetAutoAddConfig = 59;
 
 // Text message types
 const int txtTypePlain = 0;
@@ -166,7 +187,7 @@ const int reqTypeGetStatus = 0x01;
 const int reqTypeKeepAlive = 0x02;
 const int reqTypeGetTelemetry = 0x03;
 const int reqTypeGetAccessList = 0x05;
-const int reqTypeGetNeighbours = 0x06;
+const int reqTypeGetNeighbors = 0x06;
 
 // Repeater response codes
 const int respServerLoginOk = 0;
@@ -189,8 +210,8 @@ const int respCodeDeviceInfo = 13;
 const int respCodeContactMsgRecvV3 = 16;
 const int respCodeChannelMsgRecvV3 = 17;
 const int respCodeChannelInfo = 18;
-const int respCodeRadioSettings = 25;
 const int respCodeCustomVars = 21;
+const int respCodeAutoAddConfig = 25;
 
 // Push codes (async from device)
 const int pushCodeAdvert = 0x80;
@@ -212,6 +233,42 @@ const int advTypeRepeater = 2;
 const int advTypeRoom = 3;
 const int advTypeSensor = 4;
 
+// Payload Types
+const int payloadTypeREQ =
+    0x00; // request (prefixed with dest/src hashes, MAC) (enc data: timestamp, blob)
+const int payloadTypeRESPONSE =
+    0x01; // response to REQ or ANON_REQ (prefixed with dest/src hashes, MAC) (enc data: timestamp, blob)
+const int payloadTypeTXTMSG =
+    0x02; // a plain text message (prefixed with dest/src hashes, MAC) (enc data: timestamp, text)
+const int payloadTypeACK = 0x03; // a simple ack
+const int payloadTypeADVERT = 0x04; // a node advertising its Identity
+const int payloadTypeGRPTXT =
+    0x05; // an (unverified) group text message (prefixed with channel hash, MAC) (enc data: timestamp, "name: msg")
+const int payloadTypeGRPDATA =
+    0x06; // an (unverified) group datagram (prefixed with channel hash, MAC) (enc data: timestamp, blob)
+const int payloadTypeANONREQ =
+    0x07; // generic request (prefixed with dest_hash, ephemeral pub_key, MAC) (enc data: ...)
+const int payloadTypePATH =
+    0x08; // returned path (prefixed with dest/src hashes, MAC) (enc data: path, extra)
+const int payloadTypeTRACE = 0x09; // trace a path, collecting SNI for each hop
+const int payloadTypeMULTIPART = 0x0A; // packet is one of a set of packets
+const int payloadTypeCONTROL = 0x0B; // a control/discovery packet
+//...
+const int payloadTypeRawCustom =
+    0x0F; // custom packet as raw bytes, for applications with custom encryption, payloads, etc
+
+//auto-add flags
+const int autoAddOverwriteOldestFlag =
+    1 << 0; // 0x01 - overwrite oldest non-favourite when full
+const int autoAddChatFlag =
+    1 << 1; // 0x02 - auto-add Chat (Companion) (ADV_TYPE_CHAT)
+const int autoAddRepeaterFlag =
+    1 << 2; // 0x04 - auto-add Repeater (ADV_TYPE_REPEATER)
+const int autoAddRoomServerFlag =
+    1 << 3; // 0x08 - auto-add Room Server (ADV_TYPE_ROOM)
+const int autoAddSensorFlag =
+    1 << 4; // 0x10 - auto-add Sensor (ADV_TYPE_SENSOR)
+
 // Sizes
 const int pubKeySize = 32;
 const int maxPathSize = 64;
@@ -255,13 +312,14 @@ int _minPositive(int a, int b) {
 const int contactPubKeyOffset = 1;
 const int contactTypeOffset = 33;
 const int contactFlagsOffset = 34;
+const int contactFlagFavorite = 0x01;
 const int contactPathLenOffset = 35;
 const int contactPathOffset = 36;
 const int contactNameOffset = 100;
 const int contactTimestampOffset = 132;
 const int contactLatOffset = 136;
 const int contactLonOffset = 140;
-const int contactLastmodOffset = 144;
+const int contactLastModOffset = 144;
 const int contactFrameSize = 148;
 
 // Message frame offsets
@@ -639,16 +697,15 @@ Uint8List buildGetContactByKeyFrame(Uint8List pubKey) {
   return writer.toBytes();
 }
 
-// Build CMD_GET_RADIO_SETTINGS frame
-Uint8List buildGetRadioSettingsFrame() {
-  return Uint8List.fromList([cmdGetRadioSettings]);
-}
-
 //Build CMD_GET_CUSTOM_VARS frame
 Uint8List buildGetCustomVarsFrame() {
   return Uint8List.fromList([cmdGetCustomVar]);
 }
 
+Uint8List buildGetAutoAddFlagsFrame() {
+  return Uint8List.fromList([cmdGetAutoAddConfig]);
+}
+
 // Calculate LoRa airtime for a packet
 // Based on Semtech SX127x datasheet formula
 // Returns airtime in milliseconds
@@ -773,10 +830,10 @@ Uint8List buildExportContactFrame(Uint8List pubKey) {
 
 // Build a import contact frame
 // [cmd][contact_frame x98+]
-Uint8List buildImportContactFrame(String contactFrame) {
+Uint8List buildImportContactFrame(Uint8List contactFrame) {
   final writer = BufferWriter();
   writer.writeByte(cmdImportContact);
-  writer.writeHex(contactFrame);
+  writer.writeBytes(contactFrame);
   return writer.toBytes();
 }
 
@@ -788,3 +845,42 @@ Uint8List buildZeroHopContact(Uint8List pubKey) {
   writer.writeBytes(pubKey);
   return writer.toBytes();
 }
+
+// Build CMD_SET_OTHER_PARAMS frame
+// Format: [cmd][allowTelemetryFlags][advertLocationPolicy][multiAcks]
+Uint8List buildSetOtherParamsFrame(
+  int allowTelemetryFlags,
+  int advertLocationPolicy,
+  int multiAcks,
+) {
+  final writer = BufferWriter();
+  writer.writeByte(cmdSetOtherParams);
+  //Going forward the app will just set Auto Add Contacts to disabled, and use the filter flags
+  //Allow Auto Add Contacts use inverted logic (0x01 = disabled, 0x00 = enabled).
+  writer.writeByte(0x01);
+  writer.writeByte(allowTelemetryFlags); // Allow Telemetry Flags
+  writer.writeByte(advertLocationPolicy); // Advertisement Location Policy
+  writer.writeByte(multiAcks); // Multi Acknowledgements
+  return writer.toBytes();
+}
+
+// Build CMD_SET_AUTO_ADD_CONFIG frame
+// Format: [cmd][flags]
+Uint8List buildSetAutoAddConfigFrame({
+  required bool autoAddChat,
+  required bool autoAddRepeater,
+  required bool autoAddRoomServer,
+  required bool autoAddSensor,
+  required bool overwriteOldest,
+}) {
+  final writer = BufferWriter();
+  writer.writeByte(cmdSetAutoAddConfig);
+  int flags = 0;
+  if (autoAddChat) flags |= autoAddChatFlag;
+  if (autoAddRepeater) flags |= autoAddRepeaterFlag;
+  if (autoAddRoomServer) flags |= autoAddRoomServerFlag;
+  if (autoAddSensor) flags |= autoAddSensorFlag;
+  if (overwriteOldest) flags |= autoAddOverwriteOldestFlag;
+  writer.writeByte(flags);
+  return writer.toBytes();
+}

lib/helpers/cayenne_lpp.dart

@@ -1,4 +1,6 @@
 import 'dart:typed_data';
+import 'package:meshcore_open/utils/app_logger.dart';
+
 import '../connector/meshcore_protocol.dart';
 
 class CayenneLpp {
@@ -84,180 +86,192 @@ class CayenneLpp {
   static List<Map<String, dynamic>> parse(Uint8List bytes) {
     final buffer = BufferReader(bytes);
     final telemetry = <Map<String, dynamic>>[];
+    try {
+      while (buffer.remaining >= 2) {
+        final channel = buffer.readUInt8();
+        final type = buffer.readUInt8();
 
-    while (buffer.remaining >= 2) {
+        if (channel == 0 && type == 0) {
-      final channel = buffer.readUInt8();
+          break;
-      final type = buffer.readUInt8();
+        }
 
-      if (channel == 0 && type == 0) {
+        switch (type) {
-        break;
+          case lppGenericSensor:
-      }
+            telemetry.add({
-
+              'channel': channel,
-      switch (type) {
+              'type': type,
-        case lppGenericSensor:
+              'value': buffer.readUInt32BE(),
-          telemetry.add({
+            });
-            'channel': channel,
+            break;
-            'type': type,
+          case lppLuminosity:
-            'value': buffer.readUInt32BE(),
+            telemetry.add({
-          });
+              'channel': channel,
-          break;
+              'type': type,
-        case lppLuminosity:
+              'value': buffer.readUInt16BE(),
-          telemetry.add({
+            });
-            'channel': channel,
+            break;
-            'type': type,
+          case lppPresence:
-            'value': buffer.readUInt16BE(),
+            telemetry.add({
-          });
+              'channel': channel,
-          break;
+              'type': type,
-        case lppPresence:
+              'value': buffer.readUInt8(),
-          telemetry.add({
+            });
-            'channel': channel,
+            break;
-            'type': type,
+          case lppTemperature:
-            'value': buffer.readUInt8(),
+            telemetry.add({
-          });
+              'channel': channel,
-          break;
+              'type': type,
-        case lppTemperature:
+              'value': buffer.readInt16BE() / 10,
-          telemetry.add({
+            });
-            'channel': channel,
+            break;
-            'type': type,
+          case lppRelativeHumidity:
-            'value': buffer.readInt16BE() / 10,
+            telemetry.add({
-          });
+              'channel': channel,
-          break;
+              'type': type,
-        case lppRelativeHumidity:
+              'value': buffer.readUInt8() / 2,
-          telemetry.add({
+            });
-            'channel': channel,
+            break;
-            'type': type,
+          case lppBarometricPressure:
-            'value': buffer.readUInt8() / 2,
+            telemetry.add({
-          });
+              'channel': channel,
-          break;
+              'type': type,
-        case lppBarometricPressure:
+              'value': buffer.readUInt16BE() / 10,
-          telemetry.add({
+            });
-            'channel': channel,
+            break;
-            'type': type,
+          case lppVoltage:
-            'value': buffer.readUInt16BE() / 10,
+            telemetry.add({
-          });
+              'channel': channel,
-          break;
+              'type': type,
-        case lppVoltage:
+              'value': buffer.readInt16BE() / 100,
-          telemetry.add({
+            });
-            'channel': channel,
+            break;
-            'type': type,
+          case lppCurrent:
-            'value': buffer.readInt16BE() / 100,
+            telemetry.add({
-          });
+              'channel': channel,
-          break;
+              'type': type,
-        case lppCurrent:
+              'value': buffer.readInt16BE() / 1000,
-          telemetry.add({
+            });
-            'channel': channel,
+            break;
-            'type': type,
+          case lppPercentage:
-            'value': buffer.readInt16BE() / 1000,
+            telemetry.add({
-          });
+              'channel': channel,
-          break;
+              'type': type,
-        case lppPercentage:
+              'value': buffer.readUInt8(),
-          telemetry.add({
+            });
-            'channel': channel,
+            break;
-            'type': type,
+          case lppConcentration:
-            'value': buffer.readUInt8(),
+            telemetry.add({
-          });
+              'channel': channel,
-          break;
+              'type': type,
-        case lppConcentration:
+              'value': buffer.readUInt16BE(),
-          telemetry.add({
+            });
-            'channel': channel,
+            break;
-            'type': type,
+          case lppPower:
-            'value': buffer.readUInt16BE(),
+            telemetry.add({
-          });
+              'channel': channel,
-          break;
+              'type': type,
-        case lppPower:
+              'value': buffer.readUInt16BE(),
-          telemetry.add({
+            });
-            'channel': channel,
+            break;
-            'type': type,
+          case lppGps:
-            'value': buffer.readUInt16BE(),
+            telemetry.add({
-          });
+              'channel': channel,
-          break;
+              'type': type,
-        case lppGps:
+              'value': {
-          telemetry.add({
+                'latitude': buffer.readInt24BE() / 10000,
-            'channel': channel,
+                'longitude': buffer.readInt24BE() / 10000,
-            'type': type,
+                'altitude': buffer.readInt24BE() / 100,
-            'value': {
+              },
-              'latitude': buffer.readInt24BE() / 10000,
+            });
-              'longitude': buffer.readInt24BE() / 10000,
+            break;
-              'altitude': buffer.readInt24BE() / 100,
+          default:
-            },
+            return telemetry;
-          });
+        }
-          break;
-        default:
-          return telemetry;
       }
+      return telemetry;
+    } catch (e) {
+      // Handle parsing errors, possibly due to malformed data
+      appLogger.error('Error parsing Cayenne LPP data: $e');
+      // Return any telemetry parsed so far to preserve partial data
+      return telemetry;
     }
-
-    return telemetry;
   }
 
   static List<Map<String, dynamic>> parseByChannel(Uint8List bytes) {
     final buffer = BufferReader(bytes);
     final Map<int, Map<String, dynamic>> channels = {};
+    try {
+      while (buffer.remaining >= 2) {
+        final channel = buffer.readUInt8();
+        final type = buffer.readUInt8();
 
-    while (buffer.remaining >= 2) {
+        // Optional: stop on padding (00 00)
-      final channel = buffer.readUInt8();
+        if (channel == 0 && type == 0) {
-      final type = buffer.readUInt8();
+          break;
+        }
 
-      // Optional: stop on padding (00 00)
+        final channelData = channels.putIfAbsent(
-      if (channel == 0 && type == 0) {
+          channel,
-        break;
+          () => {'channel': channel, 'values': <String, dynamic>{}},
+        );
+
+        switch (type) {
+          case lppGenericSensor:
+            channelData['values']['generic'] = buffer.readUInt32BE();
+            break;
+          case lppLuminosity:
+            channelData['values']['luminosity'] = buffer.readUInt16BE();
+            break;
+          case lppPresence:
+            channelData['values']['presence'] = buffer.readUInt8() != 0;
+            break;
+          case lppTemperature:
+            channelData['values']['temperature'] = buffer.readInt16BE() / 10.0;
+            break;
+          case lppRelativeHumidity:
+            channelData['values']['humidity'] = buffer.readUInt8() / 2.0;
+            break;
+          case lppBarometricPressure:
+            channelData['values']['pressure'] = buffer.readUInt16BE() / 10.0;
+            break;
+          case lppVoltage:
+            channelData['values']['voltage'] = buffer.readInt16BE() / 100.0;
+            break;
+          case lppCurrent:
+            channelData['values']['current'] = buffer.readInt16BE() / 1000.0;
+            break;
+          case lppPercentage:
+            channelData['values']['percentage'] = buffer.readUInt8();
+            break;
+          case lppConcentration:
+            channelData['values']['concentration'] = buffer.readUInt16BE();
+            break;
+          case lppPower:
+            channelData['values']['power'] = buffer.readUInt16BE();
+            break;
+          case lppGps:
+            channelData['values']['gps'] = {
+              'latitude': buffer.readInt24BE() / 10000.0,
+              'longitude': buffer.readInt24BE() / 10000.0,
+              'altitude': buffer.readInt24BE() / 100.0,
+            };
+            break;
+          // Add more types as needed...
+          default:
+            //Stopped parsing to avoid misalignment
+            return channels.values.toList();
+        }
       }
 
-      final channelData = channels.putIfAbsent(
+      final List<Map<String, dynamic>> channelsOut = channels.values.toList();
-        channel,
+      channelsOut.sort((a, b) => a['channel'].compareTo(b['channel']));
-        () => {'channel': channel, 'values': <String, dynamic>{}},
+      return channelsOut;
-      );
+    } catch (e) {
-
+      // Handle parsing errors, possibly due to malformed data
-      switch (type) {
+      appLogger.error('Error parsing Cayenne LPP data: $e');
-        case lppGenericSensor:
+      return <
-          channelData['values']['generic'] = buffer.readUInt32BE();
+        Map<String, dynamic>
-          break;
+      >[]; // Return an empty list on error to avoid crashing the app
-        case lppLuminosity:
-          channelData['values']['luminosity'] = buffer.readUInt16BE();
-          break;
-        case lppPresence:
-          channelData['values']['presence'] = buffer.readUInt8() != 0;
-          break;
-        case lppTemperature:
-          channelData['values']['temperature'] = buffer.readInt16BE() / 10.0;
-          break;
-        case lppRelativeHumidity:
-          channelData['values']['humidity'] = buffer.readUInt8() / 2.0;
-          break;
-        case lppBarometricPressure:
-          channelData['values']['pressure'] = buffer.readUInt16BE() / 10.0;
-          break;
-        case lppVoltage:
-          channelData['values']['voltage'] = buffer.readInt16BE() / 100.0;
-          break;
-        case lppCurrent:
-          channelData['values']['current'] = buffer.readInt16BE() / 1000.0;
-          break;
-        case lppPercentage:
-          channelData['values']['percentage'] = buffer.readUInt8();
-          break;
-        case lppConcentration:
-          channelData['values']['concentration'] = buffer.readUInt16BE();
-          break;
-        case lppPower:
-          channelData['values']['power'] = buffer.readUInt16BE();
-          break;
-        case lppGps:
-          channelData['values']['gps'] = {
-            'latitude': buffer.readInt24BE() / 10000.0,
-            'longitude': buffer.readInt24BE() / 10000.0,
-            'altitude': buffer.readInt24BE() / 100.0,
-          };
-          break;
-        // Add more types as needed...
-        default:
-          // Unknown type: skip or handle error?
-          continue;
-      }
     }
-
-    final List<Map<String, dynamic>> channelsOut = channels.values.toList();
-    channelsOut.sort((a, b) => a['channel'].compareTo(b['channel']));
-    return channelsOut;
   }
 }

lib/icons/los_icon.dart

@@ -0,0 +1,22 @@
+import 'package:flutter/material.dart';
+import 'package:material_symbols_icons/material_symbols_icons.dart';
+
+class LosIcon extends StatelessWidget {
+  final double size;
+  final Color? color;
+
+  const LosIcon({super.key, this.size = 24, this.color});
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    final iconTheme = IconTheme.of(context);
+    final iconColor =
+        color ??
+        iconTheme.color ??
+        theme.iconTheme.color ??
+        theme.colorScheme.onSurface;
+
+    return Icon(Symbols.elevation, size: size, color: iconColor);
+  }
+}

lib/l10n/app_bg.arb

@@ -1,4 +1,12 @@
 {
+  "channels_channelDeleteFailed": "Неуспешно изтриване на канала \"{name}\"",
+  "@channels_channelDeleteFailed": {
+    "placeholders": {
+      "name": {
+        "type": "String"
+      }
+    }
+  },
   "@@locale": "bg",
   "appTitle": "MeshCore Open",
   "nav_contacts": "Контакти",
@@ -334,6 +342,8 @@
   "channels_publicChannel": "Публичен канал",
   "channels_privateChannel": "Частен канал",
   "channels_editChannel": "Редактирай канал",
+  "channels_muteChannel": "Заглуши канала",
+  "channels_unmuteChannel": "Включи известията на канала",
   "channels_deleteChannel": "Изтрий канала",
   "channels_deleteChannelConfirm": "Изтрий \"{name}\"? Това не може да бъде отменено.",
   "@channels_deleteChannelConfirm": {
@@ -1351,12 +1361,12 @@
       }
     }
   },
-  "repeater_neighboursSubtitle": "Преглед на съседни възли с нулев скок.",
+  "repeater_neighborsSubtitle": "Преглед на съседни възли с нулев скок.",
-  "repeater_neighbours": "Съседи",
+  "repeater_neighbors": "Съседи",
   "neighbors_receivedData": "Получени данни за съседи",
   "neighbors_requestTimedOut": "Съседите поискат изтичане на време.",
   "neighbors_errorLoading": "Грешка при зареждане на съседи: {error}",
-  "neighbors_repeatersNeighbours": "Повторители Съседи",
+  "neighbors_repeatersNeighbors": "Повторители Съседи",
   "neighbors_noData": "Няма налични данни за съседи.",
   "channels_createPrivateChannel": "Създай Частен Канал",
   "channels_joinPrivateChannel": "Присъедини се към Частен Канал",
@@ -1552,6 +1562,8 @@
   "contacts_clipboardEmpty": "Клипборда е празна.",
   "contacts_invalidAdvertFormat": "Невалидни данни за контакт",
   "appSettings_languageRu": "Руски",
+  "appSettings_enableMessageTracing": "Разрешаване на проследяване на съобщения",
+  "appSettings_enableMessageTracingSubtitle": "Показване на подробни метаданни за маршрутизация и синхронизация за съобщения",
   "contacts_contactImported": "Контактът е импортиран.",
   "contacts_zeroHopAdvert": "Реклама без скок",
   "contacts_contactImportFailed": "Контактът не е успешно импортиран.",
@@ -1594,7 +1606,258 @@
   "scanner_bluetoothOff": "Bluetooth е изключен.",
   "scanner_enableBluetooth": "Активирайте Bluetooth",
   "scanner_bluetoothOffMessage": "Моля, активирайте Bluetooth, за да сканирате за устройства.",
+  "scanner_chromeRequired": "Изисква се браузър Chrome",
+  "scanner_chromeRequiredMessage": "Това уеб приложение изисква Google Chrome или браузър, базиран на Chromium, за поддръжка на Bluetooth.",
+  "snrIndicator_lastSeen": "Последно видян",
+  "snrIndicator_nearByRepeaters": "Близки повтарящи се устройства",
+  "chat_ShowAllPaths": "Покажи всички пътища",
   "settings_clientRepeatSubtitle": "Позволете на това устройство да предава пакети към мрежата за други устройства.",
   "settings_clientRepeatFreqWarning": "За повторение извън мрежата са необходими честоти от 433, 869 или 918 MHz.",
-  "settings_clientRepeat": "Без електричество – повторение"
+  "settings_clientRepeat": "Без електричество – повторение",
+  "settings_aboutOpenMeteoAttribution": "Данни за надморска височина на LOS: Open-Meteo (CC BY 4.0)",
+  "appSettings_unitsTitle": "единици",
+  "appSettings_unitsMetric": "Метрика (m / km)",
+  "appSettings_unitsImperial": "Имперска (ft / mi)",
+  "map_lineOfSight": "Линия на видимост",
+  "map_losScreenTitle": "Линия на видимост",
+  "losSelectStartEnd": "Изберете начални и крайни възли за LOS.",
+  "losRunFailed": "Проверката на пряката видимост е неуспешна: {error}",
+  "@losRunFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "losClearAllPoints": "Изчистете всички точки",
+  "losRunToViewElevationProfile": "Стартирайте LOS, за да видите профила на надморската височина",
+  "losMenuTitle": "LOS меню",
+  "losMenuSubtitle": "Докоснете възли или натиснете продължително карта за персонализирани точки",
+  "losShowDisplayNodes": "Показване на възли на дисплея",
+  "losCustomPoints": "Персонализирани точки",
+  "losCustomPointLabel": "Персонализирано {index}",
+  "@losCustomPointLabel": {
+    "placeholders": {
+      "index": {
+        "type": "int"
+      }
+    }
+  },
+  "losPointA": "Точка А",
+  "losPointB": "Точка Б",
+  "losAntennaA": "Антена A: {value} {unit}",
+  "@losAntennaA": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losAntennaB": "Антена B: {value} {unit}",
+  "@losAntennaB": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losRun": "Стартирайте LOS",
+  "losNoElevationData": "Няма данни за надморска височина",
+  "losProfileClear": "{distance} {distanceUnit}, чист LOS, минимално разстояние {clearance} {heightUnit}",
+  "@losProfileClear": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "clearance": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losProfileBlocked": "{distance} {distanceUnit}, блокиран от {obstruction} {heightUnit}",
+  "@losProfileBlocked": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "obstruction": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losStatusChecking": "LOS: проверка...",
+  "losStatusNoData": "LOS: няма данни",
+  "losStatusSummary": "LOS: {clear}/{total} ясно, {blocked} блокирано, {unknown} неизвестно",
+  "@losStatusSummary": {
+    "placeholders": {
+      "clear": {
+        "type": "int"
+      },
+      "total": {
+        "type": "int"
+      },
+      "blocked": {
+        "type": "int"
+      },
+      "unknown": {
+        "type": "int"
+      }
+    }
+  },
+  "losErrorElevationUnavailable": "Няма налични данни за надморска височина за една или повече проби.",
+  "losErrorInvalidInput": "Невалидни данни за точки/надморска височина за изчисляване на LOS.",
+  "losRenameCustomPoint": "Преименувайте персонализирана точка",
+  "losPointName": "Име на точката",
+  "losShowPanelTooltip": "Показване на LOS панел",
+  "losHidePanelTooltip": "Скриване на LOS панела",
+  "losElevationAttribution": "Данни за надморска височина: Open-Meteo (CC BY 4.0)",
+  "losLegendRadioHorizon": "Радиохоризонт",
+  "losLegendLosBeam": "Линия на видимост",
+  "losLegendTerrain": "Терен",
+  "losFrequencyLabel": "Честота",
+  "losFrequencyInfoTooltip": "Преглед на детайли за изчислението",
+  "losFrequencyDialogTitle": "Изчисляване на радиохоризонта",
+  "losFrequencyDialogDescription": "Започвайки от k={baselineK} при {baselineFreq} MHz, изчислението коригира k-фактора за текущата {frequencyMHz} MHz лента, която определя границата на извития радиохоризонт.",
+  "@losFrequencyDialogDescription": {
+    "description": "Explain how the calculation uses the baseline frequency and derived k-factor.",
+    "placeholders": {
+      "baselineK": {
+        "type": "double"
+      },
+      "baselineFreq": {
+        "type": "double"
+      },
+      "frequencyMHz": {
+        "type": "double"
+      },
+      "kFactor": {
+        "type": "double"
+      }
+    }
+  },
+  "listFilter_removeFromFavorites": "Премахване от списъка с любими",
+  "listFilter_addToFavorites": "Добави към любими",
+  "listFilter_favorites": "Любими",
+  "@contacts_searchFavorites": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchUsers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRepeaters": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRoomServers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "contacts_searchFavorites": "Търсене на {number}{str} любими...",
+  "contacts_searchRoomServers": "Търсене на {number}{str} сървъри в стаята...",
+  "contacts_unread": "Непрочетено",
+  "contacts_searchRepeaters": "Търсене на {number}{str} повтарящи се...",
+  "contacts_searchContactsNoNumber": "Търси контакти...",
+  "contacts_searchUsers": "Търсене на {number}{str} потребители...",
+  "contactsSettings_title": "Настройки на контактите",
+  "contactsSettings_autoAddTitle": "Автоматично откриване",
+  "contactsSettings_autoAddUsersTitle": "Автоматично добавяне на потребители",
+  "contactsSettings_otherTitle": "Други настройки свързани с контакти",
+  "settings_contactSettingsSubtitle": "Настройки за добавяне на контакти.",
+  "settings_contactSettings": "Настройки за контакти",
+  "contactsSettings_autoAddSensorsTitle": "Автоматично добавяне на датчици",
+  "contactsSettings_autoAddRoomServersTitle": "Автоматично добавяне на сървъри на стаите",
+  "contactsSettings_autoAddRoomServersSubtitle": "Позволи на спътника да добавя автоматично откритите сървъри на стаите.",
+  "contactsSettings_autoAddRepeatersTitle": "Автоматично добавяне на повтарящи се елементи",
+  "contactsSettings_autoAddUsersSubtitle": "Позволи на спътника да добавя автоматично откритите потребители.",
+  "contactsSettings_autoAddRepeatersSubtitle": "Позволи на спътника да добавя автоматично откритите повтарящи се устройства.",
+  "contactsSettings_autoAddSensorsSubtitle": "Позволи на спътника да добавя автоматично откритите датчици.",
+  "contactsSettings_overwriteOldestTitle": "Премахни най-старото",
+  "discoveredContacts_Title": "Открити контакти",
+  "discoveredContacts_searchHint": "Търсене на открити контакти",
+  "discoveredContacts_noMatching": "Няма съвпадащи контакти",
+  "discoveredContacts_contactAdded": "Контакт добавен",
+  "discoveredContacts_copyContact": "Копирай контакт в клипборда",
+  "discoveredContacts_deleteContact": "Изтрий контакт",
+  "discoveredContacts_addContact": "Добави контакт",
+  "contactsSettings_overwriteOldestSubtitle": "Когато списъкът с контакти е пълен, най-старият неключов контакт ще бъде заменен.",
+  "discoveredContacts_deleteContactAll": "Изтриване на Всички Открити Контакти",
+  "discoveredContacts_deleteContactAllContent": "Сигурни ли сте, че искате да изтриете всички открити контакти?",
+  "common_deleteAll": "Изтрий всичко",
+  "map_guessedLocation": "Предполагано местоположение",
+  "map_showGuessedLocations": "Покажете местоположенията на предположените възли.",
+  "connectionChoiceUsbLabel": "USB",
+  "usbScreenTitle": "Свържете се чрез USB",
+  "connectionChoiceBluetoothLabel": "Bluetooth",
+  "usbScreenSubtitle": "Изберете открития сериен уред и свържете директно към вашия MeshCore възел.",
+  "usbScreenStatus": "Изберете USB устройство",
+  "usbScreenNote": "USB серийната връзка е активна на поддържаните Android устройства и настолни платформи.",
+  "usbScreenEmptyState": "Няма открити USB устройства. Включете едно и опитайте отново.",
+  "usbErrorPermissionDenied": "Не беше разрешено достъпът през USB.",
+  "usbErrorDeviceMissing": "Избраното USB устройство вече не е налично.",
+  "usbErrorInvalidPort": "Изберете валитно USB устройство.",
+  "usbErrorBusy": "Друг мол за свързване през USB вече е в процес на изпълнение.",
+  "usbErrorNotConnected": "Няма свързано USB устройство.",
+  "usbErrorOpenFailed": "Не успях да отворя избраното USB устройство.",
+  "usbErrorConnectFailed": "Не успях да се свържа с избраното USB устройство.",
+  "usbErrorUnsupported": "USB серийната комуникация не се поддържа на тази платформа.",
+  "usbErrorAlreadyActive": "USB връзката вече е активирана.",
+  "usbErrorNoDeviceSelected": "Няма избран USB устройство.",
+  "usbErrorPortClosed": "USB връзката не е активна.",
+  "usbFallbackDeviceName": "Устройство за четене на уеб серийни данни",
+  "@usbConnectionFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "usbStatus_connecting": "Свързване към USB устройство...",
+  "usbConnectionFailed": "Неуспешно свързване през USB: {error}",
+  "usbStatus_notConnected": "Изберете USB устройство",
+  "usbStatus_searching": "Търсене на USB устройства...",
+  "usbErrorConnectTimedOut": "Връзката прекъсна. Уверете се, че устройството има софтуер за USB връзка."
 }

lib/l10n/app_de.arb

@@ -1,4 +1,12 @@
 {
+  "channels_channelDeleteFailed": "Kanal {name} konnte nicht gelöscht werden",
+  "@channels_channelDeleteFailed": {
+    "placeholders": {
+      "name": {
+        "type": "String"
+      }
+    }
+  },
   "@@locale": "de",
   "appTitle": "MeshCore Open",
   "nav_contacts": "Kontakte",
@@ -288,8 +296,8 @@
   "contacts_filterContacts": "Filtert Kontakte...",
   "contacts_noContactsMatchFilter": "Keine Kontakte passen zu Ihrem Filter",
   "contacts_noMembers": "Keine Mitglieder",
-  "contacts_lastSeenNow": "gerade gesehen",
+  "contacts_lastSeenNow": "kürzlich",
-  "contacts_lastSeenMinsAgo": "Letzte Sichtung vor {minutes} Minuten.",
+  "contacts_lastSeenMinsAgo": "~ {minutes} Min.",
   "@contacts_lastSeenMinsAgo": {
     "placeholders": {
       "minutes": {
@@ -297,8 +305,8 @@
       }
     }
   },
-  "contacts_lastSeenHourAgo": "Letzte Sichtung vor 1 Stunde.",
+  "contacts_lastSeenHourAgo": "~ 1 Std.",
-  "contacts_lastSeenHoursAgo": "Letzte Sichtung vor {hours} Stunden.",
+  "contacts_lastSeenHoursAgo": "~ {hours} Std.",
   "@contacts_lastSeenHoursAgo": {
     "placeholders": {
       "hours": {
@@ -306,8 +314,8 @@
       }
     }
   },
-  "contacts_lastSeenDayAgo": "Letzte Sichtung vor 1 Tag",
+  "contacts_lastSeenDayAgo": "~ 1 Tag",
-  "contacts_lastSeenDaysAgo": "Letzte Sichtung {days} Tage zuvor",
+  "contacts_lastSeenDaysAgo": "~ {days} Tage",
   "@contacts_lastSeenDaysAgo": {
     "placeholders": {
       "days": {
@@ -334,6 +342,8 @@
   "channels_publicChannel": "Öffentlicher Kanal",
   "channels_privateChannel": "Privater Kanal",
   "channels_editChannel": "Kanal bearbeiten",
+  "channels_muteChannel": "Kanal stummschalten",
+  "channels_unmuteChannel": "Kanal Stummschaltung aufheben",
   "channels_deleteChannel": "Lösche den Kanal",
   "channels_deleteChannelConfirm": "Löschen von \"{name}\"? Dies kann nicht rückgängig gemacht werden.",
   "@channels_deleteChannelConfirm": {
@@ -1339,6 +1349,9 @@
   "listFilter_az": "A-Z",
   "listFilter_filters": "Filtere",
   "listFilter_all": "Alle",
+  "listFilter_favorites": "Favoriten",
+  "listFilter_addToFavorites": "Zu Favoriten hinzufügen",
+  "listFilter_removeFromFavorites": "Aus Favoriten entfernen",
   "listFilter_users": "Benutzer",
   "listFilter_repeaters": "Repeater",
   "listFilter_roomServers": "Raumserver",
@@ -1351,12 +1364,12 @@
       }
     }
   },
-  "repeater_neighbours": "Nachbarn",
+  "repeater_neighbors": "Nachbarn",
-  "repeater_neighboursSubtitle": "Anzahl der Hop-Nachbarn anzeigen.",
+  "repeater_neighborsSubtitle": "Anzahl der Hop-Nachbarn anzeigen.",
   "neighbors_receivedData": "Empfangene Nachbarsdaten",
   "neighbors_requestTimedOut": "Anfrage durch Timeout fehlgeschlagen.",
   "neighbors_errorLoading": "Fehler beim Laden der Nachbarn: {error}",
-  "neighbors_repeatersNeighbours": "Nachbarn",
+  "neighbors_repeatersNeighbors": "Nachbarn",
   "neighbors_noData": "Keine Nachbarsdaten verfügbar.",
   "channels_joinPrivateChannel": "Treten Sie einem privaten Kanal bei",
   "channels_joinPrivateChannelDesc": "Manuelle Eingabe eines geheimen Schlüssels.",
@@ -1552,6 +1565,8 @@
   "contacts_invalidAdvertFormat": "Ungültige Kontaktdaten",
   "contacts_clipboardEmpty": "Die Zwischenablage ist leer.",
   "appSettings_languageUk": "Ukrainisch",
+  "appSettings_enableMessageTracing": "Nachrichtenverfolgung aktivieren",
+  "appSettings_enableMessageTracingSubtitle": "Detaillierte Routing- und Timing-Metadaten für Nachrichten anzeigen",
   "contacts_contactImported": "Kontakt wurde importiert.",
   "contacts_contactImportFailed": "Kontakt konnte nicht importiert werden",
   "contacts_zeroHopAdvert": "Zero-Hop-Ankündigung",
@@ -1620,9 +1635,257 @@
   "pathTrace_clearTooltip": "Pfad löschen",
   "map_pathTraceCancelled": "Pfadverfolgung abgebrochen.",
   "scanner_bluetoothOffMessage": "Bitte aktivieren Sie Bluetooth, um nach Geräten zu suchen.",
+  "scanner_chromeRequired": "Chrome Browser erforderlich",
+  "scanner_chromeRequiredMessage": "Diese Webanwendung erfordert Google Chrome oder einen Chromium-basierten Browser für die Bluetooth-Unterstützung.",
   "scanner_bluetoothOff": "Bluetooth ist deaktiviert.",
   "scanner_enableBluetooth": "Bluetooth aktivieren",
+  "snrIndicator_lastSeen": "Zuletzt gesehen",
+  "snrIndicator_nearByRepeaters": "In der Nähe befindliche Repeater",
+  "chat_ShowAllPaths": "Alle Pfade anzeigen",
   "settings_clientRepeat": "Wiederholung, ohne Stromanschluss",
   "settings_clientRepeatFreqWarning": "Die Kommunikation ohne Stromversorgung erfordert Frequenzen von 433, 869 oder 918 MHz.",
-  "settings_clientRepeatSubtitle": "Ermöglichen Sie diesem Gerät, Mesh-Pakete für andere zu wiederholen."
+  "settings_clientRepeatSubtitle": "Ermöglichen Sie diesem Gerät, Mesh-Pakete für andere zu wiederholen.",
+  "settings_aboutOpenMeteoAttribution": "LOS-Höhendaten: Open-Meteo (CC BY 4.0)",
+  "appSettings_unitsTitle": "Einheiten",
+  "appSettings_unitsMetric": "Metrisch (m/km)",
+  "appSettings_unitsImperial": "Imperial (ft/mi)",
+  "map_lineOfSight": "Sichtlinie",
+  "map_losScreenTitle": "Sichtlinie",
+  "losSelectStartEnd": "Wählen Sie Start- und Endknoten für LOS aus.",
+  "losRunFailed": "Sichtlinienprüfung fehlgeschlagen: {error}",
+  "@losRunFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "losClearAllPoints": "Löschen Sie alle Punkte",
+  "losRunToViewElevationProfile": "Führen Sie LOS aus, um das Höhenprofil anzuzeigen",
+  "losMenuTitle": "LOS-Menü",
+  "losMenuSubtitle": "Tippen Sie auf Knoten oder drücken Sie lange auf die Karte, um benutzerdefinierte Punkte anzuzeigen",
+  "losShowDisplayNodes": "Anzeigeknoten anzeigen",
+  "losCustomPoints": "Benutzerdefinierte Punkte",
+  "losCustomPointLabel": "Benutzerdefiniert {index}",
+  "@losCustomPointLabel": {
+    "placeholders": {
+      "index": {
+        "type": "int"
+      }
+    }
+  },
+  "losPointA": "Punkt A",
+  "losPointB": "Punkt B",
+  "losAntennaA": "Antenne A: {value} {unit}",
+  "@losAntennaA": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losAntennaB": "Antenne B: {value} {unit}",
+  "@losAntennaB": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losRun": "Führen Sie LOS aus",
+  "losNoElevationData": "Keine Höhendaten",
+  "losProfileClear": "{distance} {distanceUnit}, freie Sichtlinie, Mindestabstand {clearance} {heightUnit}",
+  "@losProfileClear": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "clearance": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losProfileBlocked": "{distance} {distanceUnit}, blockiert durch {obstruction} {heightUnit}",
+  "@losProfileBlocked": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "obstruction": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losStatusChecking": "LOS: Überprüfen...",
+  "losStatusNoData": "LOS: keine Daten",
+  "losStatusSummary": "Sichtlinie: {clear}/{total} frei, {blocked} blockiert, {unknown} unbekannt",
+  "@losStatusSummary": {
+    "placeholders": {
+      "clear": {
+        "type": "int"
+      },
+      "total": {
+        "type": "int"
+      },
+      "blocked": {
+        "type": "int"
+      },
+      "unknown": {
+        "type": "int"
+      }
+    }
+  },
+  "losErrorElevationUnavailable": "Für eine oder mehrere Proben sind keine Höhendaten verfügbar.",
+  "losErrorInvalidInput": "Ungültige Punkte/Höhendaten für die LOS-Berechnung.",
+  "losRenameCustomPoint": "Benennen Sie den benutzerdefinierten Punkt um",
+  "losPointName": "Punktname",
+  "losShowPanelTooltip": "LOS-Panel anzeigen",
+  "losHidePanelTooltip": "LOS-Panel ausblenden",
+  "losElevationAttribution": "Höhendaten: Open-Meteo (CC BY 4.0)",
+  "losLegendRadioHorizon": "Funkhorizont",
+  "losLegendLosBeam": "Sichtlinie",
+  "losLegendTerrain": "Gelände",
+  "losFrequencyLabel": "Frequenz",
+  "losFrequencyInfoTooltip": "Details zur Berechnung anzeigen",
+  "losFrequencyDialogTitle": "Berechnung des Funkhorizonts",
+  "losFrequencyDialogDescription": "Ausgehend von k={baselineK} bei {baselineFreq} MHz passt die Berechnung den k-Faktor für das aktuelle {frequencyMHz} MHz-Band an, das die gekrümmte Funkhorizontobergrenze definiert.",
+  "@losFrequencyDialogDescription": {
+    "description": "Explain how the calculation uses the baseline frequency and derived k-factor.",
+    "placeholders": {
+      "baselineK": {
+        "type": "double"
+      },
+      "baselineFreq": {
+        "type": "double"
+      },
+      "frequencyMHz": {
+        "type": "double"
+      },
+      "kFactor": {
+        "type": "double"
+      }
+    }
+  },
+  "@contacts_searchFavorites": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchUsers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRepeaters": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRoomServers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "contacts_unread": "Ungelesen",
+  "contacts_searchContactsNoNumber": "Kontakte suchen...",
+  "contacts_searchRepeaters": "Suche {number}{str} Repeater...",
+  "contacts_searchFavorites": "Suche {number}{str} Favoriten...",
+  "contacts_searchUsers": "Suche {number}{str} Benutzer...",
+  "contacts_searchRoomServers": "Suche {number}{str} Raumserver...",
+  "settings_contactSettings": "Kontakteinstellungen",
+  "contactsSettings_otherTitle": "Weitere Einstellungen zu Kontakten",
+  "contactsSettings_title": "Kontakteinstellungen",
+  "contactsSettings_autoAddTitle": "Automatische Erkennung",
+  "contactsSettings_autoAddUsersTitle": "Automatische Hinzufügung von Benutzern",
+  "settings_contactSettingsSubtitle": "Einstellungen für das Hinzufügen von Kontakten",
+  "contactsSettings_autoAddSensorsTitle": "Automatisch Sensoren hinzufügen",
+  "contactsSettings_autoAddUsersSubtitle": "Ermöglichen Sie dem Begleiter, automatisch entdeckte Benutzer hinzuzufügen",
+  "contactsSettings_autoAddRoomServersTitle": "Automatisch Raumservers hinzufügen",
+  "contactsSettings_autoAddRoomServersSubtitle": "Ermöglichen Sie dem Begleiter, entdeckte Raumserver automatisch hinzuzufügen",
+  "contactsSettings_autoAddRepeatersTitle": "Automatisch Repeater hinzufügen",
+  "contactsSettings_autoAddRepeatersSubtitle": "Ermöglichen Sie dem Begleiter, automatisch entdeckte Repeater hinzuzufügen.",
+  "discoveredContacts_noMatching": "Keine passenden Kontakte",
+  "discoveredContacts_searchHint": "Entdeckte Kontakte suchen",
+  "discoveredContacts_addContact": "Kontakt hinzufügen",
+  "discoveredContacts_contactAdded": "Kontakt hinzugefügt",
+  "discoveredContacts_deleteContact": "Kontakt löschen",
+  "discoveredContacts_Title": "Entdeckte Kontakte",
+  "discoveredContacts_copyContact": "Kontakt in die Zwischenablage kopieren",
+  "contactsSettings_overwriteOldestTitle": "Überschreiben des Ältesten",
+  "contactsSettings_autoAddSensorsSubtitle": "Ermöglichen Sie dem Begleiter, automatisch entdeckte Sensoren hinzuzufügen",
+  "contactsSettings_overwriteOldestSubtitle": "Wenn die Kontaktliste voll ist, wird der älteste nicht favorisierte Kontakt ersetzt.",
+  "common_deleteAll": "Alles löschen",
+  "discoveredContacts_deleteContactAllContent": "Sind Sie sicher, dass Sie alle gefundenen Kontakte löschen möchten?",
+  "discoveredContacts_deleteContactAll": "Alle entdeckten Kontakte löschen",
+  "map_showGuessedLocations": "Zeige die vermuteten Knotenpositionen",
+  "map_guessedLocation": "Geschätzter Ort",
+  "usbScreenSubtitle": "Wählen Sie ein erkannten serielles Gerät aus und verbinden Sie es direkt mit Ihrem MeshCore-Knoten.",
+  "connectionChoiceUsbLabel": "USB",
+  "usbScreenTitle": "Verbinden über USB",
+  "connectionChoiceBluetoothLabel": "Bluetooth",
+  "usbScreenStatus": "Wählen Sie ein USB-Gerät aus",
+  "usbScreenNote": "Die USB-Serielle Schnittstelle ist auf unterstützten Android-Geräten und Desktop-Plattformen aktiv.",
+  "usbScreenEmptyState": "Keine USB-Geräte gefunden. Schließen Sie eines an und aktualisieren Sie.",
+  "usbErrorPermissionDenied": "Die USB-Berechtigung wurde abgelehnt.",
+  "usbErrorDeviceMissing": "Das ausgewählte USB-Gerät ist nicht mehr verfügbar.",
+  "usbErrorInvalidPort": "Wählen Sie ein gültiges USB-Gerät aus.",
+  "usbErrorBusy": "Eine weitere Anfrage für eine USB-Verbindung ist bereits in Bearbeitung.",
+  "usbErrorNotConnected": "Es ist kein USB-Gerät angeschlossen.",
+  "usbErrorOpenFailed": "Fehlgeschlagen beim Öffnen des ausgewählten USB-Geräts.",
+  "usbErrorConnectFailed": "Keine Verbindung zum ausgewählten USB-Gerät hergestellt.",
+  "usbErrorUnsupported": "Die USB-Serielle Schnittstelle wird auf dieser Plattform nicht unterstützt.",
+  "usbErrorAlreadyActive": "Eine USB-Verbindung ist bereits hergestellt.",
+  "usbErrorNoDeviceSelected": "Kein USB-Gerät wurde ausgewählt.",
+  "usbErrorPortClosed": "Die USB-Verbindung ist nicht aktiv.",
+  "usbFallbackDeviceName": "Web-Serielle Geräte",
+  "@usbConnectionFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "usbStatus_searching": "Suche nach USB-Geräten...",
+  "usbStatus_notConnected": "Wählen Sie ein USB-Gerät aus",
+  "usbStatus_connecting": "Verbindung zum USB-Gerät...",
+  "usbConnectionFailed": "Fehler beim USB-Verbindungsaufbau: {error}",
+  "usbErrorConnectTimedOut": "Verbindung konnte nicht hergestellt werden. Stellen Sie sicher, dass das Gerät die entsprechende USB-Firmware enthält."
 }

lib/l10n/app_en.arb

@@ -10,6 +10,7 @@
   "common_unknownDevice": "Unknown Device",
   "common_save": "Save",
   "common_delete": "Delete",
+  "common_deleteAll": "Delete All",
   "common_close": "Close",
   "common_edit": "Edit",
   "common_add": "Add",
@@ -46,6 +47,37 @@
     }
   },
   "scanner_title": "MeshCore Open",
+  "connectionChoiceUsbLabel": "USB",
+  "connectionChoiceBluetoothLabel": "Bluetooth",
+  "usbScreenTitle": "Connect over USB",
+  "usbScreenSubtitle": "Choose a detected serial device and connect directly to your MeshCore node.",
+  "usbScreenStatus": "Select a USB device",
+  "usbScreenNote": "USB serial is active on supported Android devices and desktop platforms.",
+  "usbScreenEmptyState": "No USB devices found. Plug one in and refresh.",
+  "usbErrorPermissionDenied": "USB permission was denied.",
+  "usbErrorDeviceMissing": "The selected USB device is no longer available.",
+  "usbErrorInvalidPort": "Select a valid USB device.",
+  "usbErrorBusy": "Another USB connection request is already in progress.",
+  "usbErrorNotConnected": "No USB device is connected.",
+  "usbErrorOpenFailed": "Failed to open the selected USB device.",
+  "usbErrorConnectFailed": "Failed to connect to the selected USB device.",
+  "usbErrorUnsupported": "USB serial is not supported on this platform.",
+  "usbErrorAlreadyActive": "A USB connection is already active.",
+  "usbErrorNoDeviceSelected": "No USB device was selected.",
+  "usbErrorPortClosed": "The USB connection is not open.",
+  "usbErrorConnectTimedOut": "Connection timed out. Make sure the device has USB Companion firmware.",
+  "usbFallbackDeviceName": "Web Serial Device",
+  "usbStatus_notConnected": "Select a USB device",
+  "usbStatus_connecting": "Connecting to USB device...",
+  "usbStatus_searching": "Searching for USB devices...",
+  "usbConnectionFailed": "USB connection failed: {error}",
+  "@usbConnectionFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
   "scanner_scanning": "Scanning for devices...",
   "scanner_connecting": "Connecting...",
   "scanner_disconnecting": "Disconnecting...",
@@ -72,6 +104,8 @@
   "scanner_scan": "Scan",
   "scanner_bluetoothOff": "Bluetooth is off",
   "scanner_bluetoothOffMessage": "Please turn on Bluetooth to scan for devices",
+  "scanner_chromeRequired": "Chrome Browser Required",
+  "scanner_chromeRequiredMessage": "This web application requires Google Chrome or a Chromium-based browser for Bluetooth support.",
   "scanner_enableBluetooth": "Enable Bluetooth",
   "device_quickSwitch": "Quick switch",
   "device_meshcore": "MeshCore",
@@ -98,6 +132,8 @@
   "settings_locationIntervalInvalid": "Interval must be at least 60 seconds, and less than 86400 seconds.",
   "settings_latitude": "Latitude",
   "settings_longitude": "Longitude",
+  "settings_contactSettings": "Contact Settings",
+  "settings_contactSettingsSubtitle": "Settings for how contacts are added.",
   "settings_privacyMode": "Privacy Mode",
   "settings_privacyModeSubtitle": "Hide name/location in advertisements",
   "settings_privacyModeToggle": "Toggle privacy mode to hide your name and location in advertisements.",
@@ -131,6 +167,7 @@
   },
   "settings_aboutLegalese": "2026 MeshCore Open Source Project",
   "settings_aboutDescription": "An open-source Flutter client for MeshCore LoRa mesh networking devices.",
+  "settings_aboutOpenMeteoAttribution": "LOS elevation data: Open-Meteo (CC BY 4.0)",
   "settings_infoName": "Name",
   "settings_infoId": "ID",
   "settings_infoStatus": "Status",
@@ -182,6 +219,8 @@
   "appSettings_languageBg": "Български",
   "appSettings_languageRu": "Русский",
   "appSettings_languageUk": "Українська",
+  "appSettings_enableMessageTracing": "Enable Message Tracing",
+  "appSettings_enableMessageTracingSubtitle": "Show detailed routing and timing metadata for messages",
   "appSettings_notifications": "Notifications",
   "appSettings_enableNotifications": "Enable Notifications",
   "appSettings_enableNotificationsSubtitle": "Receive notifications for messages and adverts",
@@ -242,6 +281,9 @@
   "appSettings_last24Hours": "Last 24 hours",
   "appSettings_lastWeek": "Last week",
   "appSettings_offlineMapCache": "Offline Map Cache",
+  "appSettings_unitsTitle": "Units",
+  "appSettings_unitsMetric": "Metric (m / km)",
+  "appSettings_unitsImperial": "Imperial (ft / mi)",
   "appSettings_noAreaSelected": "No area selected",
   "appSettings_areaSelectedZoom": "Area selected (zoom {minZoom}-{maxZoom})",
   "@appSettings_areaSelectedZoom": {
@@ -262,7 +304,63 @@
   "contacts_title": "Contacts",
   "contacts_noContacts": "No contacts yet",
   "contacts_contactsWillAppear": "Contacts will appear when devices advertise",
-  "contacts_searchContacts": "Search contacts...",
+  "contacts_unread": "Unread",
+  "contacts_searchContactsNoNumber": "Search Contacts...",
+  "contacts_searchContacts": "Search {number}{str} Contacts...",
+  "@contacts_searchContacts": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "contacts_searchFavorites": "Search {number}{str} Favorites...",
+  "@contacts_searchFavorites": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "contacts_searchUsers": "Search {number}{str} Users...",
+  "@contacts_searchUsers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "contacts_searchRepeaters": "Search {number}{str} Repeaters...",
+  "@contacts_searchRepeaters": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "contacts_searchRoomServers": "Search {number}{str} Room servers...",
+  "@contacts_searchRoomServers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
   "contacts_noUnreadContacts": "No unread contacts",
   "contacts_noContactsFound": "No contacts or groups found",
   "contacts_deleteContact": "Delete Contact",
@@ -302,8 +400,8 @@
   "contacts_filterContacts": "Filter contacts...",
   "contacts_noContactsMatchFilter": "No contacts match your filter",
   "contacts_noMembers": "No members",
-  "contacts_lastSeenNow": "Last seen now",
+  "contacts_lastSeenNow": "recently",
-  "contacts_lastSeenMinsAgo": "Last seen {minutes} mins ago",
+  "contacts_lastSeenMinsAgo": "~ {minutes} min.",
   "@contacts_lastSeenMinsAgo": {
     "placeholders": {
       "minutes": {
@@ -311,8 +409,8 @@
       }
     }
   },
-  "contacts_lastSeenHourAgo": "Last seen 1 hour ago",
+  "contacts_lastSeenHourAgo": "~ 1 hour",
-  "contacts_lastSeenHoursAgo": "Last seen {hours} hours ago",
+  "contacts_lastSeenHoursAgo": "~ {hours} hours",
   "@contacts_lastSeenHoursAgo": {
     "placeholders": {
       "hours": {
@@ -320,8 +418,8 @@
       }
     }
   },
-  "contacts_lastSeenDayAgo": "Last seen 1 day ago",
+  "contacts_lastSeenDayAgo": "~ 1 day",
-  "contacts_lastSeenDaysAgo": "Last seen {days} days ago",
+  "contacts_lastSeenDaysAgo": "~ {days} days",
   "@contacts_lastSeenDaysAgo": {
     "placeholders": {
       "days": {
@@ -348,6 +446,8 @@
   "channels_publicChannel": "Public channel",
   "channels_privateChannel": "Private channel",
   "channels_editChannel": "Edit channel",
+  "channels_muteChannel": "Mute channel",
+  "channels_unmuteChannel": "Unmute channel",
   "channels_deleteChannel": "Delete channel",
   "channels_deleteChannelConfirm": "Delete \"{name}\"? This cannot be undone.",
   "@channels_deleteChannelConfirm": {
@@ -357,6 +457,14 @@
       }
     }
   },
+  "channels_channelDeleteFailed": "Failed to delete channel \"{name}\"",
+  "@channels_channelDeleteFailed": {
+    "placeholders": {
+      "name": {
+        "type": "String"
+      }
+    }
+  },
   "channels_channelDeleted": "Channel \"{name}\" deleted",
   "@channels_channelDeleted": {
     "placeholders": {
@@ -558,6 +666,7 @@
   },
   "debugFrame_hexDump": "Hex Dump:",
   "chat_pathManagement": "Path Management",
+  "chat_ShowAllPaths": "Show all paths",
   "chat_routingMode": "Routing mode",
   "chat_autoUseSavedPath": "Auto (use saved path)",
   "chat_forceFloodMode": "Force Flood Mode",
@@ -638,6 +747,8 @@
   },
   "chat_invalidLink": "Invalid link format",
   "map_title": "Node Map",
+  "map_lineOfSight": "Line of Sight",
+  "map_losScreenTitle": "Line of Sight",
   "map_noNodesWithLocation": "No nodes with location data",
   "map_nodesNeedGps": "Nodes need to share their GPS coordinates\nto appear on the map",
   "map_nodesCount": "Nodes: {count}",
@@ -695,6 +806,8 @@
   "map_publicKeyPrefix": "Public key prefix",
   "map_markers": "Markers",
   "map_showSharedMarkers": "Show shared markers",
+  "map_showGuessedLocations": "Show guessed node locations",
+  "map_guessedLocation": "Guessed location",
   "map_lastSeenTime": "Last Seen Time",
   "map_sharedPin": "Shared pin",
   "map_joinRoom": "Join Room",
@@ -905,8 +1018,8 @@
   "repeater_telemetrySubtitle": "View telemetry of sensors and system stats",
   "repeater_cli": "CLI",
   "repeater_cliSubtitle": "Send commands to the repeater",
-  "repeater_neighbours": "Neighbors",
+  "repeater_neighbors": "Neighbors",
-  "repeater_neighboursSubtitle": "View zero hop neighbors.",
+  "repeater_neighborsSubtitle": "View zero hop neighbors.",
   "repeater_settings": "Settings",
   "repeater_settingsSubtitle": "Configure repeater parameters",
   "repeater_statusTitle": "Repeater Status",
@@ -1266,8 +1379,8 @@
       }
     }
   },
-  "neighbors_receivedData": "Received Neighbours Data",
+  "neighbors_receivedData": "Received Neighbors Data",
-  "neighbors_requestTimedOut": "Neighbours request timed out.",
+  "neighbors_requestTimedOut": "Neighbors request timed out.",
   "neighbors_errorLoading": "Error loading neighbors: {error}",
   "@neighbors_errorLoading": {
     "placeholders": {
@@ -1276,8 +1389,8 @@
       }
     }
   },
-  "neighbors_repeatersNeighbours": "Repeaters Neighbours",
+  "neighbors_repeatersNeighbors": "Repeaters Neighbors",
-  "neighbors_noData": "No neighbours data available.",
+  "neighbors_noData": "No neighbors data available.",
   "neighbors_unknownContact": "Unknown {pubkey}",
   "@neighbors_unknownContact": {
     "placeholders": {
@@ -1536,6 +1649,9 @@
   "listFilter_az": "A-Z",
   "listFilter_filters": "Filters",
   "listFilter_all": "All",
+  "listFilter_favorites": "Favorites",
+  "listFilter_addToFavorites": "Add to favorites",
+  "listFilter_removeFromFavorites": "Remove from favorites",
   "listFilter_users": "Users",
   "listFilter_repeaters": "Repeaters",
   "listFilter_roomServers": "Room servers",
@@ -1547,6 +1663,139 @@
   "pathTrace_refreshTooltip": "Refresh Path Trace.",
   "pathTrace_someHopsNoLocation": "One or more of the hops is missing a location!",
   "pathTrace_clearTooltip": "Clear path.",
+  "losSelectStartEnd": "Select start and end nodes for LOS.",
+  "losRunFailed": "Line-of-sight check failed: {error}",
+  "@losRunFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "losClearAllPoints": "Clear all points",
+  "losRunToViewElevationProfile": "Run LOS to view elevation profile",
+  "losMenuTitle": "LOS Menu",
+  "losMenuSubtitle": "Tap nodes or long-press map for custom points",
+  "losShowDisplayNodes": "Show display nodes",
+  "losCustomPoints": "Custom points",
+  "losCustomPointLabel": "Custom {index}",
+  "@losCustomPointLabel": {
+    "placeholders": {
+      "index": {
+        "type": "int"
+      }
+    }
+  },
+  "losPointA": "Point A",
+  "losPointB": "Point B",
+  "losAntennaA": "Antenna A: {value} {unit}",
+  "@losAntennaA": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losAntennaB": "Antenna B: {value} {unit}",
+  "@losAntennaB": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losRun": "Run LOS",
+  "losNoElevationData": "No elevation data",
+  "losProfileClear": "{distance} {distanceUnit}, clear LOS, min clearance {clearance} {heightUnit}",
+  "@losProfileClear": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "clearance": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losProfileBlocked": "{distance} {distanceUnit}, blocked by {obstruction} {heightUnit}",
+  "@losProfileBlocked": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "obstruction": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losStatusChecking": "LOS: checking...",
+  "losStatusNoData": "LOS: no data",
+  "losStatusSummary": "LOS: {clear}/{total} clear, {blocked} blocked, {unknown} unknown",
+  "@losStatusSummary": {
+    "placeholders": {
+      "clear": {
+        "type": "int"
+      },
+      "total": {
+        "type": "int"
+      },
+      "blocked": {
+        "type": "int"
+      },
+      "unknown": {
+        "type": "int"
+      }
+    }
+  },
+  "losErrorElevationUnavailable": "Elevation data unavailable for one or more samples.",
+  "losErrorInvalidInput": "Invalid points/elevation data for LOS calculation.",
+  "losRenameCustomPoint": "Rename custom point",
+  "losPointName": "Point name",
+  "losShowPanelTooltip": "Show LOS panel",
+  "losHidePanelTooltip": "Hide LOS panel",
+  "losElevationAttribution": "Elevation data: Open-Meteo (CC BY 4.0)",
+  "losLegendRadioHorizon": "Radio horizon",
+  "losLegendLosBeam": "LOS beam",
+  "losLegendTerrain": "Terrain",
+  "losFrequencyLabel": "Frequency",
+  "losFrequencyInfoTooltip": "View calculation details",
+  "losFrequencyDialogTitle": "Radio horizon calculation",
+  "losFrequencyDialogDescription": "Starting from k={baselineK} at {baselineFreq} MHz, the calculation adjusts the k-factor for the current {frequencyMHz} MHz band, which defines the curved radio horizon cap.",
+  "@losFrequencyDialogDescription": {
+    "description": "Explain how the calculation uses the baseline frequency and derived k-factor.",
+    "placeholders": {
+      "baselineK": {
+        "type": "double"
+      },
+      "baselineFreq": {
+        "type": "double"
+      },
+      "frequencyMHz": {
+        "type": "double"
+      },
+      "kFactor": {
+        "type": "double"
+      }
+    }
+  },
   "contacts_pathTrace": "Path Trace",
   "contacts_ping": "Ping",
   "contacts_repeaterPathTrace": "Path trace to repeater",
@@ -1624,5 +1873,29 @@
   "settings_gpxExportChat": "Companion locations",
   "settings_gpxExportAllContacts": "All contacts locations",
   "settings_gpxExportShareText": "Map data exported from meshcore-open",
-  "settings_gpxExportShareSubject": "meshcore-open GPX map data export"
+  "settings_gpxExportShareSubject": "meshcore-open GPX map data export",
-}
+  "snrIndicator_nearByRepeaters": "Nearby Repeaters",
+  "snrIndicator_lastSeen": "Last seen",
+  "contactsSettings_title": "Contacts settings",
+  "contactsSettings_autoAddTitle": "Automatic Discovery",
+  "contactsSettings_otherTitle": "Other contact related settings",
+  "contactsSettings_autoAddUsersTitle": "Auto-add users",
+  "contactsSettings_autoAddUsersSubtitle": "Allow the companion to automatically add discovered users.",
+  "contactsSettings_autoAddRepeatersTitle": "Auto-add repeaters",
+  "contactsSettings_autoAddRepeatersSubtitle": "Allow the companion to automatically add discovered repeaters.",
+  "contactsSettings_autoAddRoomServersTitle": "Auto-add room servers",
+  "contactsSettings_autoAddRoomServersSubtitle": "Allow the companion to automatically add discovered room servers.",
+  "contactsSettings_autoAddSensorsTitle": "Auto-add sensors",
+  "contactsSettings_autoAddSensorsSubtitle": "Allow the companion to automatically add discovered sensors.",
+  "contactsSettings_overwriteOldestTitle": "Overwrite Oldest",
+  "contactsSettings_overwriteOldestSubtitle": "When the contact list is full, the oldest non-favorited contact will be replaced.",
+  "discoveredContacts_Title": "Discovered Contacts",
+  "discoveredContacts_noMatching": "No matching contacts",
+  "discoveredContacts_searchHint": "Search discovered contacts",
+  "discoveredContacts_contactAdded": "Contact added",
+  "discoveredContacts_addContact": "Add Contact",
+  "discoveredContacts_copyContact": "Copy Contact to clipboard",
+  "discoveredContacts_deleteContact": "Delete Discovered Contact",
+  "discoveredContacts_deleteContactAll": "Delete All Discovered Contacts",
+  "discoveredContacts_deleteContactAllContent": "Are you sure you want to delete all discovered contacts?"
+}

lib/l10n/app_es.arb

@@ -1,4 +1,12 @@
 {
+  "channels_channelDeleteFailed": "No se pudo eliminar el canal \"{name}\"",
+  "@channels_channelDeleteFailed": {
+    "placeholders": {
+      "name": {
+        "type": "String"
+      }
+    }
+  },
   "@@locale": "es",
   "appTitle": "MeshCore Open",
   "nav_contacts": "Contactos",
@@ -289,7 +297,7 @@
   "contacts_noContactsMatchFilter": "No hay contactos que coincidan con tu filtro",
   "contacts_noMembers": "No miembros",
   "contacts_lastSeenNow": "Última vez que se vio ahora",
-  "contacts_lastSeenMinsAgo": "Última vez visto hace {minutes} minutos.",
+  "contacts_lastSeenMinsAgo": "~ {minutes} min.",
   "@contacts_lastSeenMinsAgo": {
     "placeholders": {
       "minutes": {
@@ -297,8 +305,8 @@
       }
     }
   },
-  "contacts_lastSeenHourAgo": "Última vez que se vio hace 1 hora",
+  "contacts_lastSeenHourAgo": "~ 1 hora",
-  "contacts_lastSeenHoursAgo": "Última vez visto hace {hours} horas.",
+  "contacts_lastSeenHoursAgo": "~ {hours} horas",
   "@contacts_lastSeenHoursAgo": {
     "placeholders": {
       "hours": {
@@ -306,8 +314,8 @@
       }
     }
   },
-  "contacts_lastSeenDayAgo": "Última vez que se vio hace 1 día",
+  "contacts_lastSeenDayAgo": "~ 1 día",
-  "contacts_lastSeenDaysAgo": "Última vez visto hace {days} días.",
+  "contacts_lastSeenDaysAgo": "~ {days} días",
   "@contacts_lastSeenDaysAgo": {
     "placeholders": {
       "days": {
@@ -334,6 +342,8 @@
   "channels_publicChannel": "Canal público",
   "channels_privateChannel": "Canal privado",
   "channels_editChannel": "Editar canal",
+  "channels_muteChannel": "Silenciar canal",
+  "channels_unmuteChannel": "Activar canal",
   "channels_deleteChannel": "Eliminar canal",
   "channels_deleteChannelConfirm": "Eliminar \"{name}\"? Esto no se puede deshacer.",
   "@channels_deleteChannelConfirm": {
@@ -1351,12 +1361,12 @@
       }
     }
   },
-  "repeater_neighbours": "Vecinos",
+  "repeater_neighbors": "Vecinos",
-  "repeater_neighboursSubtitle": "Ver vecinos de salto cero.",
+  "repeater_neighborsSubtitle": "Ver vecinos de salto cero.",
   "neighbors_receivedData": "Recibidas Datos de Vecinos",
   "neighbors_requestTimedOut": "Los vecinos solicitan que se desconecte.",
   "neighbors_errorLoading": "Error al cargar vecinos: {error}",
-  "neighbors_repeatersNeighbours": "Repetidores Vecinos",
+  "neighbors_repeatersNeighbors": "Repetidores Vecinos",
   "neighbors_noData": "No hay datos de vecinos disponibles.",
   "channels_joinPrivateChannel": "Únete a un Canal Privado",
   "channels_createPrivateChannel": "Crear un Canal Privado",
@@ -1551,6 +1561,8 @@
   "appSettings_languageUk": "Ucraniano",
   "contacts_clipboardEmpty": "El portapapeles está vacío.",
   "appSettings_languageRu": "Ruso",
+  "appSettings_enableMessageTracing": "Habilitar seguimiento de mensajes",
+  "appSettings_enableMessageTracingSubtitle": "Mostrar metadatos detallados de enrutamiento y tiempo para los mensajes",
   "contacts_invalidAdvertFormat": "Datos de contacto no válidos",
   "contacts_floodAdvert": "Anuncio de inundación",
   "contacts_contactImported": "El contacto ha sido importado.",
@@ -1620,9 +1632,260 @@
   "map_removeLast": "Eliminar último",
   "map_pathTraceCancelled": "Rastreo de ruta cancelado.",
   "scanner_bluetoothOffMessage": "Por favor, active el Bluetooth para escanear dispositivos.",
+  "scanner_chromeRequired": "Navegador Chrome requerido",
+  "scanner_chromeRequiredMessage": "Esta aplicación web requiere Google Chrome o un navegador basado en Chromium para el soporte de Bluetooth.",
   "scanner_bluetoothOff": "Bluetooth está desactivado.",
   "scanner_enableBluetooth": "Habilitar Bluetooth",
+  "snrIndicator_nearByRepeaters": "Repetidores cercanos",
+  "snrIndicator_lastSeen": "Visto por última vez",
+  "chat_ShowAllPaths": "Mostrar todos los caminos",
   "settings_clientRepeatFreqWarning": "Para la comunicación fuera de la red, se requiere una frecuencia de 433, 869 o 918 MHz.",
   "settings_clientRepeat": "Repetir sin conexión",
-  "settings_clientRepeatSubtitle": "Permita que este dispositivo repita los paquetes de red para otros usuarios."
+  "settings_clientRepeatSubtitle": "Permita que este dispositivo repita los paquetes de red para otros usuarios.",
+  "settings_aboutOpenMeteoAttribution": "Datos de elevación LOS: Open-Meteo (CC BY 4.0)",
+  "appSettings_unitsTitle": "Unidades",
+  "appSettings_unitsMetric": "Métrico (m/km)",
+  "appSettings_unitsImperial": "Imperial (pies/millas)",
+  "map_lineOfSight": "Línea de visión",
+  "map_losScreenTitle": "Línea de visión",
+  "losSelectStartEnd": "Seleccione los nodos de inicio y fin para LOS.",
+  "losRunFailed": "Error en la comprobación de la línea de visión: {error}",
+  "@losRunFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "losClearAllPoints": "Borrar todos los puntos",
+  "losRunToViewElevationProfile": "Ejecute LOS para ver el perfil de elevación",
+  "losMenuTitle": "Menú LOS",
+  "losMenuSubtitle": "Toque nodos o mantenga presionado el mapa para puntos personalizados",
+  "losShowDisplayNodes": "Mostrar nodos de visualización",
+  "losCustomPoints": "Puntos personalizados",
+  "losCustomPointLabel": "Personalizado {index}",
+  "@losCustomPointLabel": {
+    "placeholders": {
+      "index": {
+        "type": "int"
+      }
+    }
+  },
+  "losPointA": "Punto A",
+  "losPointB": "Punto B",
+  "losAntennaA": "Antena A: {value} {unit}",
+  "@losAntennaA": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losAntennaB": "Antena B: {value} {unit}",
+  "@losAntennaB": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losRun": "Ejecutar LOS",
+  "losNoElevationData": "Sin datos de elevación",
+  "losProfileClear": "{distance} {distanceUnit}, despejar LOS, autorización mínima {clearance} {heightUnit}",
+  "@losProfileClear": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "clearance": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losProfileBlocked": "{distance} {distanceUnit}, bloqueado por {obstruction} {heightUnit}",
+  "@losProfileBlocked": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "obstruction": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losStatusChecking": "LOS: comprobando...",
+  "losStatusNoData": "LOS: sin datos",
+  "losStatusSummary": "LOS: {clear}/{total} claro, {blocked} bloqueado, {unknown} desconocido",
+  "@losStatusSummary": {
+    "placeholders": {
+      "clear": {
+        "type": "int"
+      },
+      "total": {
+        "type": "int"
+      },
+      "blocked": {
+        "type": "int"
+      },
+      "unknown": {
+        "type": "int"
+      }
+    }
+  },
+  "losErrorElevationUnavailable": "Datos de elevación no disponibles para una o más muestras.",
+  "losErrorInvalidInput": "Datos de puntos/elevación no válidos para el cálculo de LOS.",
+  "losRenameCustomPoint": "Cambiar el nombre del punto personalizado",
+  "losPointName": "Nombre del punto",
+  "losShowPanelTooltip": "Mostrar panel LOS",
+  "losHidePanelTooltip": "Ocultar panel LOS",
+  "losElevationAttribution": "Datos de elevación: Open-Meteo (CC BY 4.0)",
+  "losLegendRadioHorizon": "Horizonte radioeléctrico",
+  "losLegendLosBeam": "Línea de visión",
+  "losLegendTerrain": "Terreno",
+  "losFrequencyLabel": "Frecuencia",
+  "losFrequencyInfoTooltip": "Ver detalles del cálculo",
+  "losFrequencyDialogTitle": "Cálculo del horizonte radioeléctrico",
+  "losFrequencyDialogDescription": "A partir de k={baselineK} en {baselineFreq} MHz, el cálculo ajusta el factor k para la banda actual de {frequencyMHz} MHz, que define el límite curvo del horizonte de radio.",
+  "@losFrequencyDialogDescription": {
+    "description": "Explain how the calculation uses the baseline frequency and derived k-factor.",
+    "placeholders": {
+      "baselineK": {
+        "type": "double"
+      },
+      "baselineFreq": {
+        "type": "double"
+      },
+      "frequencyMHz": {
+        "type": "double"
+      },
+      "kFactor": {
+        "type": "double"
+      }
+    }
+  },
+  "listFilter_favorites": "Favoritos",
+  "listFilter_removeFromFavorites": "Eliminar de las favoritas",
+  "listFilter_addToFavorites": "Añadir a favoritos",
+  "@contacts_searchFavorites": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchUsers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRepeaters": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRoomServers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "contacts_searchContactsNoNumber": "Buscar contactos...",
+  "contacts_unread": "No leído",
+  "contacts_searchFavorites": "Buscar {number}{str} Favoritos...",
+  "contacts_searchUsers": "Buscar {number}{str} Usuarios...",
+  "contacts_searchRepeaters": "Buscar {number}{str} Repetidores...",
+  "contacts_searchRoomServers": "Buscar {number}{str} servidores de sala...",
+  "contactsSettings_autoAddTitle": "Detección automática",
+  "settings_contactSettings": "Configuración de contacto",
+  "contactsSettings_autoAddUsersTitle": "Agregar usuarios automáticamente",
+  "contactsSettings_otherTitle": "Otras configuraciones relacionadas con el contacto",
+  "contactsSettings_autoAddUsersSubtitle": "Permitir que el compañero agregue automáticamente a los usuarios descubiertos.",
+  "contactsSettings_autoAddRepeatersSubtitle": "Permitir que el compañero agregue automáticamente los repetidores descubiertos.",
+  "contactsSettings_autoAddRoomServersSubtitle": "Permitir que el compañero agregue automáticamente los servidores de salas descubiertos.",
+  "contactsSettings_autoAddSensorsTitle": "Agregar sensores automáticamente",
+  "contactsSettings_title": "Configuración de contactos",
+  "settings_contactSettingsSubtitle": "Configuración de cómo se agregan los contactos.",
+  "contactsSettings_autoAddSensorsSubtitle": "Permitir que el compañero agregue automáticamente los sensores descubiertos.",
+  "contactsSettings_autoAddRepeatersTitle": "Agregar repetidores automáticamente",
+  "contactsSettings_overwriteOldestTitle": "Sobreescribir el más antiguo",
+  "contactsSettings_autoAddRoomServersTitle": "Agregar automáticamente servidores de sala",
+  "discoveredContacts_noMatching": "No se encontraron contactos coincidentes",
+  "discoveredContacts_contactAdded": "Contacto agregado",
+  "discoveredContacts_copyContact": "Copiar contacto al portapapeles",
+  "discoveredContacts_deleteContact": "Eliminar contacto",
+  "discoveredContacts_Title": "Contactos descubiertos",
+  "discoveredContacts_searchHint": "Buscar contactos descubiertos",
+  "discoveredContacts_addContact": "Agregar contacto",
+  "contactsSettings_overwriteOldestSubtitle": "Cuando la lista de contactos esté llena, se reemplazará el contacto no favorito más antiguo.",
+  "common_deleteAll": "Eliminar todo",
+  "discoveredContacts_deleteContactAll": "Eliminar Todos los Contactos Descubiertos",
+  "discoveredContacts_deleteContactAllContent": "¿Está seguro de que desea eliminar todos los contactos descubiertos!",
+  "map_guessedLocation": "Ubicación estimada",
+  "map_showGuessedLocations": "Mostrar las ubicaciones estimadas de los nodos.",
+  "usbScreenTitle": "Conecte mediante USB",
+  "connectionChoiceUsbLabel": "USB",
+  "connectionChoiceBluetoothLabel": "Bluetooth",
+  "usbScreenSubtitle": "Seleccione el dispositivo de serie detectado y conéctelo directamente a su nodo MeshCore.",
+  "usbScreenStatus": "Seleccione un dispositivo USB",
+  "usbScreenNote": "La comunicación serial a través de USB está activa en dispositivos Android compatibles y en plataformas de escritorio.",
+  "usbScreenEmptyState": "No se encontraron dispositivos USB. Conecte uno y vuelva a intentar.",
+  "usbErrorPermissionDenied": "Se denegó el permiso de acceso a través de USB.",
+  "usbErrorDeviceMissing": "El dispositivo USB seleccionado ya no está disponible.",
+  "usbErrorInvalidPort": "Seleccione un dispositivo USB válido.",
+  "usbErrorBusy": "Ya se ha iniciado una solicitud de conexión USB adicional.",
+  "usbErrorNotConnected": "No hay ningún dispositivo USB conectado.",
+  "usbErrorOpenFailed": "No se pudo abrir el dispositivo USB seleccionado.",
+  "usbErrorConnectFailed": "No se pudo conectar con el dispositivo USB seleccionado.",
+  "usbErrorUnsupported": "La comunicación serial a través de USB no está soportada en esta plataforma.",
+  "usbErrorAlreadyActive": "La conexión USB ya está activa.",
+  "usbErrorNoDeviceSelected": "No se ha seleccionado ningún dispositivo USB.",
+  "usbErrorPortClosed": "La conexión USB no está activa.",
+  "usbFallbackDeviceName": "Dispositivo de serie web",
+  "@usbConnectionFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "usbStatus_connecting": "Conectándose al dispositivo USB...",
+  "usbStatus_searching": "Buscando dispositivos USB...",
+  "usbStatus_notConnected": "Seleccione un dispositivo USB",
+  "usbConnectionFailed": "Error al conectar mediante USB: {error}",
+  "usbErrorConnectTimedOut": "La conexión ha caducado. Asegúrese de que el dispositivo tenga el firmware USB Companion."
 }

lib/l10n/app_fr.arb

@@ -1,4 +1,12 @@
 {
+  "channels_channelDeleteFailed": "Échec de la suppression de la chaîne \"{name}\"",
+  "@channels_channelDeleteFailed": {
+    "placeholders": {
+      "name": {
+        "type": "String"
+      }
+    }
+  },
   "@@locale": "fr",
   "appTitle": "MeshCore Open",
   "nav_contacts": "Contacts",
@@ -262,7 +270,7 @@
     }
   },
   "contacts_manageRepeater": "Gérer le répéteur",
-  "contacts_roomLogin": "Connexion Salle",
+  "contacts_roomLogin": "Connexion Room Server",
   "contacts_openChat": "Ouverture du Chat",
   "contacts_editGroup": "Modifier le groupe",
   "contacts_deleteGroup": "Supprimer le groupe",
@@ -289,7 +297,7 @@
   "contacts_noContactsMatchFilter": "Aucun contact ne correspond à votre filtre.",
   "contacts_noMembers": "Aucun membre",
   "contacts_lastSeenNow": "Vu maintenant",
-  "contacts_lastSeenMinsAgo": "Vu il y a {minutes} minutes",
+  "contacts_lastSeenMinsAgo": "~ {minutes} min.",
   "@contacts_lastSeenMinsAgo": {
     "placeholders": {
       "minutes": {
@@ -297,8 +305,8 @@
       }
     }
   },
-  "contacts_lastSeenHourAgo": "Vu il y a 1 heure",
+  "contacts_lastSeenHourAgo": "~ 1 heure",
-  "contacts_lastSeenHoursAgo": "Vu il y a {hours} heures",
+  "contacts_lastSeenHoursAgo": "~ {hours} heures",
   "@contacts_lastSeenHoursAgo": {
     "placeholders": {
       "hours": {
@@ -306,8 +314,8 @@
       }
     }
   },
-  "contacts_lastSeenDayAgo": "Vu il y a 1 jour",
+  "contacts_lastSeenDayAgo": "~ 1 jour",
-  "contacts_lastSeenDaysAgo": "Vu il y a {days} jours",
+  "contacts_lastSeenDaysAgo": "~ {days} jours",
   "@contacts_lastSeenDaysAgo": {
     "placeholders": {
       "days": {
@@ -334,6 +342,8 @@
   "channels_publicChannel": "Canal public",
   "channels_privateChannel": "Canal privé",
   "channels_editChannel": "Modifier le canal",
+  "channels_muteChannel": "Désactiver les notifications du canal",
+  "channels_unmuteChannel": "Réactiver les notifications du canal",
   "channels_deleteChannel": "Supprimer le canal",
   "channels_deleteChannelConfirm": "Supprimer {name}? Cela ne peut pas être annulé.",
   "@channels_deleteChannelConfirm": {
@@ -796,7 +806,7 @@
   "dialog_disconnect": "Déconnecter",
   "dialog_disconnectConfirm": "Êtes-vous sûr de vouloir vous déconnecter de cet appareil ?",
   "login_repeaterLogin": "Connexion au répéteur",
-  "login_roomLogin": "Connexion Salle",
+  "login_roomLogin": "Connexion Room Server",
   "login_password": "Mot de passe",
   "login_enterPassword": "Entrez votre mot de passe",
   "login_savePassword": "Sauvegarder le mot de passe",
@@ -1351,12 +1361,12 @@
       }
     }
   },
-  "repeater_neighbours": "Voisins",
+  "repeater_neighbors": "Voisins",
-  "repeater_neighboursSubtitle": "Afficher les voisins de saut nuls.",
+  "repeater_neighborsSubtitle": "Afficher les voisins de saut nuls.",
   "neighbors_receivedData": "Données des voisins reçues",
   "neighbors_requestTimedOut": "Les voisins demandent un délai.",
   "neighbors_errorLoading": "Erreur lors du chargement des voisins : {error}",
-  "neighbors_repeatersNeighbours": "Répéteurs Voisins",
+  "neighbors_repeatersNeighbors": "Répéteurs Voisins",
   "neighbors_noData": "Aucune donnée concernant les voisins disponible.",
   "channels_createPrivateChannelDesc": "Sécurisé avec une clé secrète.",
   "channels_joinPrivateChannel": "Rejoindre un Canal Privé",
@@ -1391,7 +1401,7 @@
   "settings_locationIntervalSec": "Intervalle de mise-à-jour du GPS (Secondes)",
   "settings_locationIntervalInvalid": "L'intervalle doit être compris entre 60 et 86400 secondes.",
   "contacts_manageRoom": "Gérer le Room Server",
-  "room_management": "Administración del Servidor de Habitación",
+  "room_management": "Administrattion Room Server",
   "@community_joinConfirmation": {
     "placeholders": {
       "name": {
@@ -1551,6 +1561,8 @@
   "contacts_invalidAdvertFormat": "Données de contact non valides",
   "appSettings_languageUk": "Ukrainien",
   "appSettings_languageRu": "Russe",
+  "appSettings_enableMessageTracing": "Activer le traçage des messages",
+  "appSettings_enableMessageTracingSubtitle": "Afficher les métadonnées détaillées de routage et de synchronisation des messages",
   "contacts_clipboardEmpty": "Le presse-papiers est vide.",
   "contacts_contactImported": "Le contact a été importé.",
   "contacts_floodAdvert": "Annonce à tout le réseau",
@@ -1592,9 +1604,260 @@
   "map_removeLast": "Supprimer le dernier",
   "map_runTrace": "Exécuter la traçage de chemin",
   "scanner_bluetoothOffMessage": "Veuillez activer le Bluetooth pour rechercher des appareils.",
+  "scanner_chromeRequired": "Navigateur Chrome requis",
+  "scanner_chromeRequiredMessage": "Cette application web nécessite Google Chrome ou un navigateur basé sur Chromium pour le support Bluetooth.",
   "scanner_bluetoothOff": "Le Bluetooth est désactivé.",
   "scanner_enableBluetooth": "Activer le Bluetooth",
+  "snrIndicator_lastSeen": "Dernière fois vu",
+  "snrIndicator_nearByRepeaters": "Répéteurs à proximité",
+  "chat_ShowAllPaths": "Afficher tous les chemins",
   "settings_clientRepeatFreqWarning": "Pour les transmissions hors réseau, il est nécessaire d'utiliser les fréquences de 433, 869 ou 918 MHz.",
   "settings_clientRepeatSubtitle": "Permettez à cet appareil de répéter les paquets de données pour les autres.",
-  "settings_clientRepeat": "Répétition hors réseau"
+  "settings_clientRepeat": "Répétition hors réseau",
+  "settings_aboutOpenMeteoAttribution": "Données d'élévation LOS : Open-Meteo (CC BY 4.0)",
+  "appSettings_unitsTitle": "Unités",
+  "appSettings_unitsMetric": "Métrique (m/km)",
+  "appSettings_unitsImperial": "Impérial (ft / mi)",
+  "map_lineOfSight": "Ligne de vue",
+  "map_losScreenTitle": "Ligne de vue",
+  "losSelectStartEnd": "Sélectionnez les nœuds de début et de fin pour LOS.",
+  "losRunFailed": "Échec de la vérification de la ligne de vue : {error}",
+  "@losRunFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "losClearAllPoints": "Effacer tous les points",
+  "losRunToViewElevationProfile": "Exécutez LOS pour afficher le profil d'altitude",
+  "losMenuTitle": "Menu LOS",
+  "losMenuSubtitle": "Appuyez sur les nœuds ou appuyez longuement sur la carte pour des points personnalisés",
+  "losShowDisplayNodes": "Afficher les nœuds d'affichage",
+  "losCustomPoints": "Points personnalisés",
+  "losCustomPointLabel": "Personnalisé {index}",
+  "@losCustomPointLabel": {
+    "placeholders": {
+      "index": {
+        "type": "int"
+      }
+    }
+  },
+  "losPointA": "Point A",
+  "losPointB": "Point B",
+  "losAntennaA": "Antenne A : {value} {unit}",
+  "@losAntennaA": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losAntennaB": "Antenne B : {value} {unit}",
+  "@losAntennaB": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losRun": "Exécuter la LOS",
+  "losNoElevationData": "Aucune donnée d'altitude",
+  "losProfileClear": "{distance} {distanceUnit}, LOS clair, clairance minimale {clearance} {heightUnit}",
+  "@losProfileClear": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "clearance": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losProfileBlocked": "{distance} {distanceUnit}, bloqué par {obstruction} {heightUnit}",
+  "@losProfileBlocked": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "obstruction": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losStatusChecking": "LOS : vérification...",
+  "losStatusNoData": "LOS : aucune donnée",
+  "losStatusSummary": "LOS : {clear}/{total} clair, {blocked} bloqué, {unknown} inconnu",
+  "@losStatusSummary": {
+    "placeholders": {
+      "clear": {
+        "type": "int"
+      },
+      "total": {
+        "type": "int"
+      },
+      "blocked": {
+        "type": "int"
+      },
+      "unknown": {
+        "type": "int"
+      }
+    }
+  },
+  "losErrorElevationUnavailable": "Données d'altitude indisponibles pour un ou plusieurs échantillons.",
+  "losErrorInvalidInput": "Données de points/d'altitude non valides pour le calcul de la LOS.",
+  "losRenameCustomPoint": "Renommer le point personnalisé",
+  "losPointName": "Nom du point",
+  "losShowPanelTooltip": "Afficher le panneau LOS",
+  "losHidePanelTooltip": "Masquer le panneau LOS",
+  "losElevationAttribution": "Données d’altitude : Open-Meteo (CC BY 4.0)",
+  "losLegendRadioHorizon": "Horizon radio",
+  "losLegendLosBeam": "Ligne de visée",
+  "losLegendTerrain": "Terrain",
+  "losFrequencyLabel": "Fréquence",
+  "losFrequencyInfoTooltip": "Voir les détails du calcul",
+  "losFrequencyDialogTitle": "Calcul de l’horizon radio",
+  "losFrequencyDialogDescription": "À partir de k={baselineK} à {baselineFreq} MHz, le calcul ajuste le facteur k pour la bande actuelle de {frequencyMHz} MHz, ce qui définit la limite incurvée de l'horizon radio.",
+  "@losFrequencyDialogDescription": {
+    "description": "Explain how the calculation uses the baseline frequency and derived k-factor.",
+    "placeholders": {
+      "baselineK": {
+        "type": "double"
+      },
+      "baselineFreq": {
+        "type": "double"
+      },
+      "frequencyMHz": {
+        "type": "double"
+      },
+      "kFactor": {
+        "type": "double"
+      }
+    }
+  },
+  "listFilter_addToFavorites": "Ajouter à mes favoris",
+  "listFilter_removeFromFavorites": "Supprimer des favoris",
+  "listFilter_favorites": "Préférences",
+  "@contacts_searchFavorites": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchUsers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRepeaters": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRoomServers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "contacts_unread": "Non lu",
+  "contacts_searchFavorites": "Rechercher {number}{str} Favoris...",
+  "contacts_searchUsers": "Rechercher {number}{str} utilisateurs...",
+  "contacts_searchRoomServers": "Rechercher {number}{str} serveurs de salle...",
+  "contacts_searchRepeaters": "Rechercher {number}{str} Répéteurs...",
+  "contacts_searchContactsNoNumber": "Rechercher des contacts...",
+  "settings_contactSettings": "Paramètres de contact",
+  "settings_contactSettingsSubtitle": "Paramètres pour l'ajout de contacts",
+  "contactsSettings_autoAddRepeatersTitle": "Ajouter automatiquement les répéteurs",
+  "contactsSettings_autoAddRepeatersSubtitle": "Autoriser le compagnon à ajouter automatiquement les répéteurs découverts",
+  "contactsSettings_autoAddRoomServersTitle": "Ajouter automatiquement les serveurs de salle",
+  "contactsSettings_autoAddRoomServersSubtitle": "Autoriser le compagnon à ajouter automatiquement les serveurs de salles découverts",
+  "contactsSettings_otherTitle": "Autres paramètres liés aux contacts",
+  "contactsSettings_title": "Paramètres des contacts",
+  "contactsSettings_autoAddUsersTitle": "Ajouter automatiquement les utilisateurs",
+  "contactsSettings_autoAddTitle": "Découverte automatique",
+  "contactsSettings_autoAddSensorsTitle": "Ajouter automatiquement les capteurs",
+  "contactsSettings_autoAddUsersSubtitle": "Autoriser le compagnon à ajouter automatiquement les utilisateurs découverts",
+  "discoveredContacts_noMatching": "Aucun contact correspondant",
+  "discoveredContacts_contactAdded": "Contact ajouté",
+  "discoveredContacts_addContact": "Ajouter un contact",
+  "discoveredContacts_copyContact": "Copier le contact dans le presse-papiers",
+  "discoveredContacts_deleteContact": "Supprimer le contact",
+  "contactsSettings_overwriteOldestTitle": "Écraser le plus ancien",
+  "contactsSettings_autoAddSensorsSubtitle": "Autoriser le compagnon à ajouter automatiquement les capteurs découverts.",
+  "discoveredContacts_Title": "Contacts découverts",
+  "discoveredContacts_searchHint": "Rechercher des contacts découverts",
+  "contactsSettings_overwriteOldestSubtitle": "Lorsque la liste de contacts est pleine, le contact le plus ancien non favori sera remplacé.",
+  "common_deleteAll": "Supprimer tout",
+  "discoveredContacts_deleteContactAll": "Supprimer tous les contacts découverts",
+  "discoveredContacts_deleteContactAllContent": "Êtes-vous sûr de vouloir supprimer tous les contacts découverts ?",
+  "map_showGuessedLocations": "Afficher les emplacements des nœuds estimés",
+  "map_guessedLocation": "Lieu deviné",
+  "connectionChoiceUsbLabel": "USB",
+  "usbScreenTitle": "Connectez via USB",
+  "connectionChoiceBluetoothLabel": "Bluetooth",
+  "usbScreenSubtitle": "Sélectionnez un périphérique série détecté et connectez-vous directement à votre nœud MeshCore.",
+  "usbScreenStatus": "Sélectionnez un périphérique USB",
+  "usbScreenNote": "La communication série USB est active sur les appareils Android et les plateformes de bureau compatibles.",
+  "usbScreenEmptyState": "Aucun périphérique USB n'a été trouvé. Veuillez en brancher un et rafraîchir la page.",
+  "usbErrorPermissionDenied": "L'accès via USB a été refusé.",
+  "usbErrorDeviceMissing": "Le périphérique USB sélectionné n'est plus disponible.",
+  "usbErrorInvalidPort": "Sélectionnez un périphérique USB valide.",
+  "usbErrorBusy": "Une autre demande de connexion USB est déjà en cours.",
+  "usbErrorNotConnected": "Aucun appareil USB n'est connecté.",
+  "usbErrorOpenFailed": "Impossible d'ouvrir l'appareil USB sélectionné.",
+  "usbErrorConnectFailed": "Impossible de se connecter à l'appareil USB sélectionné.",
+  "usbErrorUnsupported": "La communication série USB n'est pas prise en charge sur cette plateforme.",
+  "usbErrorAlreadyActive": "Une connexion USB est déjà établie.",
+  "usbErrorNoDeviceSelected": "Aucun appareil USB n'a été sélectionné.",
+  "usbErrorPortClosed": "La connexion USB n'est pas établie.",
+  "usbFallbackDeviceName": "Dispositif de communication série sur le Web",
+  "@usbConnectionFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "usbStatus_notConnected": "Sélectionnez un périphérique USB",
+  "usbConnectionFailed": "Échec de la connexion USB : {error}",
+  "usbStatus_connecting": "Connexion au périphérique USB...",
+  "usbStatus_searching": "Recherche de périphériques USB...",
+  "usbErrorConnectTimedOut": "La connexion a expiré. Assurez-vous que l'appareil dispose du firmware USB Companion."
 }

lib/l10n/app_it.arb

@@ -1,4 +1,12 @@
 {
+  "channels_channelDeleteFailed": "Impossibile eliminare il canale \"{name}\"",
+  "@channels_channelDeleteFailed": {
+    "placeholders": {
+      "name": {
+        "type": "String"
+      }
+    }
+  },
   "@@locale": "it",
   "appTitle": "MeshCore Open",
   "nav_contacts": "Contatti",
@@ -334,6 +342,8 @@
   "channels_publicChannel": "Canale pubblico",
   "channels_privateChannel": "Canale privato",
   "channels_editChannel": "Modifica canale",
+  "channels_muteChannel": "Silenzia canale",
+  "channels_unmuteChannel": "Attiva notifiche canale",
   "channels_deleteChannel": "Elimina canale",
   "channels_deleteChannelConfirm": "Eliminare \"{name}\"? Non può essere annullato.",
   "@channels_deleteChannelConfirm": {
@@ -1351,12 +1361,12 @@
       }
     }
   },
-  "repeater_neighbours": "Vicini",
+  "repeater_neighbors": "Vicini",
-  "repeater_neighboursSubtitle": "Visualizza vicini di salto pari a zero.",
+  "repeater_neighborsSubtitle": "Visualizza vicini di salto pari a zero.",
   "neighbors_receivedData": "Ricevute dati vicini",
   "neighbors_requestTimedOut": "I vicini richiedono un timeout.",
   "neighbors_errorLoading": "Errore nel caricamento dei vicini: {error}",
-  "neighbors_repeatersNeighbours": "Ripetitori Vicini",
+  "neighbors_repeatersNeighbors": "Ripetitori Vicini",
   "neighbors_noData": "Nessun dato sugli vicini disponibile.",
   "channels_createPrivateChannel": "Crea un Canale Privato",
   "channels_createPrivateChannelDesc": "Protetta con una chiave segreta.",
@@ -1551,6 +1561,8 @@
   "appSettings_languageRu": "Russo",
   "contacts_invalidAdvertFormat": "Dati di contatto non validi",
   "appSettings_languageUk": "Ucraino",
+  "appSettings_enableMessageTracing": "Abilita tracciamento messaggi",
+  "appSettings_enableMessageTracingSubtitle": "Mostra metadati dettagliati su instradamento e tempi per i messaggi",
   "contacts_zeroHopAdvert": "Annuncio Zero Hop",
   "contacts_floodAdvert": "Annuncio alluvionale",
   "contacts_copyAdvertToClipboard": "Copia Annuncio negli Appunti",
@@ -1593,8 +1605,259 @@
   "map_tapToAdd": "Tocca i nodi per aggiungerli al percorso.",
   "scanner_bluetoothOff": "Il Bluetooth è disattivato.",
   "scanner_bluetoothOffMessage": "Si prega di attivare il Bluetooth per effettuare la scansione dei dispositivi.",
+  "scanner_chromeRequired": "Browser Chrome richiesto",
+  "scanner_chromeRequiredMessage": "Questa applicazione web richiede Google Chrome o un browser basato su Chromium per il supporto Bluetooth.",
   "scanner_enableBluetooth": "Abilita il Bluetooth",
+  "snrIndicator_nearByRepeaters": "Ripetitori vicini",
+  "snrIndicator_lastSeen": "Ultimo accesso",
+  "chat_ShowAllPaths": "Mostra tutti i percorsi",
   "settings_clientRepeat": "Ripetizione \"fuori dalla rete\"",
   "settings_clientRepeatFreqWarning": "Per la comunicazione fuori rete, è necessario utilizzare frequenze di 433, 869 o 918 MHz.",
-  "settings_clientRepeatSubtitle": "Permetti a questo dispositivo di ripetere i pacchetti di rete per gli altri."
+  "settings_clientRepeatSubtitle": "Permetti a questo dispositivo di ripetere i pacchetti di rete per gli altri.",
+  "settings_aboutOpenMeteoAttribution": "Dati di elevazione LOS: Open-Meteo (CC BY 4.0)",
+  "appSettings_unitsTitle": "Unità",
+  "appSettings_unitsMetric": "Metrico (m/km)",
+  "appSettings_unitsImperial": "Imperiale (ft / mi)",
+  "map_lineOfSight": "Linea di vista",
+  "map_losScreenTitle": "Linea di vista",
+  "losSelectStartEnd": "Seleziona i nodi iniziali e finali per la LOS.",
+  "losRunFailed": "Controllo della linea di vista fallito: {error}",
+  "@losRunFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "losClearAllPoints": "Cancella tutti i punti",
+  "losRunToViewElevationProfile": "Eseguire LOS per visualizzare il profilo altimetrico",
+  "losMenuTitle": "Menù LOS",
+  "losMenuSubtitle": "Tocca i nodi o premi a lungo la mappa per punti personalizzati",
+  "losShowDisplayNodes": "Mostra i nodi di visualizzazione",
+  "losCustomPoints": "Punti personalizzati",
+  "losCustomPointLabel": "Personalizzato {index}",
+  "@losCustomPointLabel": {
+    "placeholders": {
+      "index": {
+        "type": "int"
+      }
+    }
+  },
+  "losPointA": "Punto A",
+  "losPointB": "Punto B",
+  "losAntennaA": "Antenna A: {value} {unit}",
+  "@losAntennaA": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losAntennaB": "Antenna B: {value} {unit}",
+  "@losAntennaB": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losRun": "Esegui LOS",
+  "losNoElevationData": "Nessun dato di elevazione",
+  "losProfileClear": "{distance} {distanceUnit}, libera LOS, distanza minima {clearance} {heightUnit}",
+  "@losProfileClear": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "clearance": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losProfileBlocked": "{distance} {distanceUnit}, bloccato da {obstruction} {heightUnit}",
+  "@losProfileBlocked": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "obstruction": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losStatusChecking": "LOS: controllo...",
+  "losStatusNoData": "LOS: nessun dato",
+  "losStatusSummary": "LOS: {clear}/{total} libera, {blocked} bloccato, {unknown} sconosciuto",
+  "@losStatusSummary": {
+    "placeholders": {
+      "clear": {
+        "type": "int"
+      },
+      "total": {
+        "type": "int"
+      },
+      "blocked": {
+        "type": "int"
+      },
+      "unknown": {
+        "type": "int"
+      }
+    }
+  },
+  "losErrorElevationUnavailable": "Dati di elevazione non disponibili per uno o più campioni.",
+  "losErrorInvalidInput": "Dati punti/elevazione non validi per il calcolo della LOS.",
+  "losRenameCustomPoint": "Rinomina punto personalizzato",
+  "losPointName": "Nome del punto",
+  "losShowPanelTooltip": "Mostra il pannello LOS",
+  "losHidePanelTooltip": "Nascondi il pannello LOS",
+  "losElevationAttribution": "Dati di elevazione: Open-Meteo (CC BY 4.0)",
+  "losLegendRadioHorizon": "Orizzonte radio",
+  "losLegendLosBeam": "Linea di vista",
+  "losLegendTerrain": "Terreno",
+  "losFrequencyLabel": "Frequenza",
+  "losFrequencyInfoTooltip": "Visualizza i dettagli del calcolo",
+  "losFrequencyDialogTitle": "Calcolo dell’orizzonte radio",
+  "losFrequencyDialogDescription": "Partendo da k={baselineK} a {baselineFreq} MHz, il calcolo regola il fattore k per l'attuale banda {frequencyMHz} MHz, che definisce il limite curvo dell'orizzonte radio.",
+  "@losFrequencyDialogDescription": {
+    "description": "Explain how the calculation uses the baseline frequency and derived k-factor.",
+    "placeholders": {
+      "baselineK": {
+        "type": "double"
+      },
+      "baselineFreq": {
+        "type": "double"
+      },
+      "frequencyMHz": {
+        "type": "double"
+      },
+      "kFactor": {
+        "type": "double"
+      }
+    }
+  },
+  "listFilter_addToFavorites": "Aggiungi ai preferiti",
+  "listFilter_removeFromFavorites": "Rimuovi dai preferiti",
+  "listFilter_favorites": "Preferiti",
+  "@contacts_searchFavorites": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchUsers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRepeaters": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRoomServers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "contacts_searchUsers": "Cerca {number}{str} Utenti...",
+  "contacts_searchContactsNoNumber": "Cerca Contatti...",
+  "contacts_searchFavorites": "Cerca {number}{str} Preferiti...",
+  "contacts_unread": "Non letti",
+  "contacts_searchRepeaters": "Cerca {number}{str} Ripetitori...",
+  "contacts_searchRoomServers": "Cerca {number}{str} server Room...",
+  "contactsSettings_title": "Impostazioni dei contatti",
+  "settings_contactSettings": "Impostazioni di contatto",
+  "contactsSettings_otherTitle": "Altre impostazioni relative ai contatti",
+  "contactsSettings_autoAddUsersSubtitle": "Consenti al compagno di aggiungere automaticamente gli utenti scoperti.",
+  "contactsSettings_autoAddRepeatersTitle": "Aggiungere ripetitori automaticamente",
+  "contactsSettings_autoAddRoomServersSubtitle": "Consenti al compagno di aggiungere automaticamente i server delle stanze scoperte.",
+  "contactsSettings_autoAddSensorsTitle": "Aggiungere automaticamente i sensori",
+  "settings_contactSettingsSubtitle": "Impostazioni per l'aggiunta dei contatti",
+  "contactsSettings_autoAddUsersTitle": "Aggiungere utenti automaticamente",
+  "contactsSettings_autoAddTitle": "Scoperta automatica",
+  "contactsSettings_autoAddSensorsSubtitle": "Consenti al compagno di aggiungere automaticamente i sensori scoperti",
+  "discoveredContacts_noMatching": "Nessun contatto corrispondente",
+  "contactsSettings_autoAddRepeatersSubtitle": "Consenti al compagno di aggiungere automaticamente i ripetitori scoperti.",
+  "discoveredContacts_searchHint": "Cerca contatti scoperti",
+  "contactsSettings_autoAddRoomServersTitle": "Aggiungere automaticamente i server delle stanze",
+  "discoveredContacts_addContact": "Aggiungi contatto",
+  "contactsSettings_overwriteOldestTitle": "Sostituisci il più vecchio",
+  "discoveredContacts_Title": "Contatti scoperti",
+  "discoveredContacts_contactAdded": "Contatto aggiunto",
+  "discoveredContacts_deleteContact": "Elimina Contatto",
+  "discoveredContacts_copyContact": "Copia contatto negli appunti",
+  "contactsSettings_overwriteOldestSubtitle": "Quando l'elenco dei contatti è pieno, il contatto più vecchio non tra i preferiti verrà sostituito.",
+  "common_deleteAll": "Elimina tutto",
+  "discoveredContacts_deleteContactAllContent": "Sei sicuro di voler eliminare tutti i contatti scoperti?",
+  "discoveredContacts_deleteContactAll": "Eliminare tutti i contatti scoperti",
+  "map_guessedLocation": "Località indovinata",
+  "map_showGuessedLocations": "Mostra le posizioni stimate dei nodi",
+  "connectionChoiceBluetoothLabel": "Bluetooth",
+  "usbScreenSubtitle": "Seleziona il dispositivo seriale rilevato e connettilo direttamente al tuo nodo MeshCore.",
+  "connectionChoiceUsbLabel": "USB",
+  "usbScreenTitle": "Connessione tramite USB",
+  "usbScreenStatus": "Seleziona un dispositivo USB",
+  "usbScreenNote": "La comunicazione seriale USB è attiva sui dispositivi Android supportati e sulle piattaforme desktop.",
+  "usbScreenEmptyState": "Nessun dispositivo USB rilevato. Collegare uno e aggiornare.",
+  "usbErrorPermissionDenied": "È stato negato l'accesso tramite USB.",
+  "usbErrorDeviceMissing": "Il dispositivo USB selezionato non è più disponibile.",
+  "usbErrorInvalidPort": "Seleziona un dispositivo USB valido.",
+  "usbErrorBusy": "Un'altra richiesta di connessione tramite USB è già in corso.",
+  "usbErrorNotConnected": "Non è collegato alcun dispositivo USB.",
+  "usbErrorOpenFailed": "Impossibile aprire il dispositivo USB selezionato.",
+  "usbErrorConnectFailed": "Impossibile connettersi al dispositivo USB selezionato.",
+  "usbErrorUnsupported": "La comunicazione seriale tramite USB non è supportata su questa piattaforma.",
+  "usbErrorAlreadyActive": "La connessione USB è già attiva.",
+  "usbErrorNoDeviceSelected": "Non è stato selezionato alcun dispositivo USB.",
+  "usbErrorPortClosed": "La connessione USB non è attiva.",
+  "usbFallbackDeviceName": "Dispositivo per comunicazione seriale su rete",
+  "@usbConnectionFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "usbStatus_searching": "Ricerca di dispositivi USB...",
+  "usbConnectionFailed": "Errore nella connessione USB: {error}",
+  "usbStatus_notConnected": "Seleziona un dispositivo USB",
+  "usbStatus_connecting": "Connessione al dispositivo USB...",
+  "usbErrorConnectTimedOut": "La connessione è scaduta. Assicurarsi che il dispositivo abbia il firmware USB Companion."
 }

lib/l10n/app_localizations.dart

@@ -184,6 +184,12 @@ abstract class AppLocalizations {
   /// **'Delete'**
   String get common_delete;
 
+  /// No description provided for @common_deleteAll.
+  ///
+  /// In en, this message translates to:
+  /// **'Delete All'**
+  String get common_deleteAll;
+
   /// No description provided for @common_close.
   ///
   /// In en, this message translates to:
@@ -316,6 +322,150 @@ abstract class AppLocalizations {
   /// **'MeshCore Open'**
   String get scanner_title;
 
+  /// No description provided for @connectionChoiceUsbLabel.
+  ///
+  /// In en, this message translates to:
+  /// **'USB'**
+  String get connectionChoiceUsbLabel;
+
+  /// No description provided for @connectionChoiceBluetoothLabel.
+  ///
+  /// In en, this message translates to:
+  /// **'Bluetooth'**
+  String get connectionChoiceBluetoothLabel;
+
+  /// No description provided for @usbScreenTitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Connect over USB'**
+  String get usbScreenTitle;
+
+  /// No description provided for @usbScreenSubtitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Choose a detected serial device and connect directly to your MeshCore node.'**
+  String get usbScreenSubtitle;
+
+  /// No description provided for @usbScreenStatus.
+  ///
+  /// In en, this message translates to:
+  /// **'Select a USB device'**
+  String get usbScreenStatus;
+
+  /// No description provided for @usbScreenNote.
+  ///
+  /// In en, this message translates to:
+  /// **'USB serial is active on supported Android devices and desktop platforms.'**
+  String get usbScreenNote;
+
+  /// No description provided for @usbScreenEmptyState.
+  ///
+  /// In en, this message translates to:
+  /// **'No USB devices found. Plug one in and refresh.'**
+  String get usbScreenEmptyState;
+
+  /// No description provided for @usbErrorPermissionDenied.
+  ///
+  /// In en, this message translates to:
+  /// **'USB permission was denied.'**
+  String get usbErrorPermissionDenied;
+
+  /// No description provided for @usbErrorDeviceMissing.
+  ///
+  /// In en, this message translates to:
+  /// **'The selected USB device is no longer available.'**
+  String get usbErrorDeviceMissing;
+
+  /// No description provided for @usbErrorInvalidPort.
+  ///
+  /// In en, this message translates to:
+  /// **'Select a valid USB device.'**
+  String get usbErrorInvalidPort;
+
+  /// No description provided for @usbErrorBusy.
+  ///
+  /// In en, this message translates to:
+  /// **'Another USB connection request is already in progress.'**
+  String get usbErrorBusy;
+
+  /// No description provided for @usbErrorNotConnected.
+  ///
+  /// In en, this message translates to:
+  /// **'No USB device is connected.'**
+  String get usbErrorNotConnected;
+
+  /// No description provided for @usbErrorOpenFailed.
+  ///
+  /// In en, this message translates to:
+  /// **'Failed to open the selected USB device.'**
+  String get usbErrorOpenFailed;
+
+  /// No description provided for @usbErrorConnectFailed.
+  ///
+  /// In en, this message translates to:
+  /// **'Failed to connect to the selected USB device.'**
+  String get usbErrorConnectFailed;
+
+  /// No description provided for @usbErrorUnsupported.
+  ///
+  /// In en, this message translates to:
+  /// **'USB serial is not supported on this platform.'**
+  String get usbErrorUnsupported;
+
+  /// No description provided for @usbErrorAlreadyActive.
+  ///
+  /// In en, this message translates to:
+  /// **'A USB connection is already active.'**
+  String get usbErrorAlreadyActive;
+
+  /// No description provided for @usbErrorNoDeviceSelected.
+  ///
+  /// In en, this message translates to:
+  /// **'No USB device was selected.'**
+  String get usbErrorNoDeviceSelected;
+
+  /// No description provided for @usbErrorPortClosed.
+  ///
+  /// In en, this message translates to:
+  /// **'The USB connection is not open.'**
+  String get usbErrorPortClosed;
+
+  /// No description provided for @usbErrorConnectTimedOut.
+  ///
+  /// In en, this message translates to:
+  /// **'Connection timed out. Make sure the device has USB Companion firmware.'**
+  String get usbErrorConnectTimedOut;
+
+  /// No description provided for @usbFallbackDeviceName.
+  ///
+  /// In en, this message translates to:
+  /// **'Web Serial Device'**
+  String get usbFallbackDeviceName;
+
+  /// No description provided for @usbStatus_notConnected.
+  ///
+  /// In en, this message translates to:
+  /// **'Select a USB device'**
+  String get usbStatus_notConnected;
+
+  /// No description provided for @usbStatus_connecting.
+  ///
+  /// In en, this message translates to:
+  /// **'Connecting to USB device...'**
+  String get usbStatus_connecting;
+
+  /// No description provided for @usbStatus_searching.
+  ///
+  /// In en, this message translates to:
+  /// **'Searching for USB devices...'**
+  String get usbStatus_searching;
+
+  /// No description provided for @usbConnectionFailed.
+  ///
+  /// In en, this message translates to:
+  /// **'USB connection failed: {error}'**
+  String usbConnectionFailed(String error);
+
   /// No description provided for @scanner_scanning.
   ///
   /// In en, this message translates to:
@@ -388,6 +538,18 @@ abstract class AppLocalizations {
   /// **'Please turn on Bluetooth to scan for devices'**
   String get scanner_bluetoothOffMessage;
 
+  /// No description provided for @scanner_chromeRequired.
+  ///
+  /// In en, this message translates to:
+  /// **'Chrome Browser Required'**
+  String get scanner_chromeRequired;
+
+  /// No description provided for @scanner_chromeRequiredMessage.
+  ///
+  /// In en, this message translates to:
+  /// **'This web application requires Google Chrome or a Chromium-based browser for Bluetooth support.'**
+  String get scanner_chromeRequiredMessage;
+
   /// No description provided for @scanner_enableBluetooth.
   ///
   /// In en, this message translates to:
@@ -544,6 +706,18 @@ abstract class AppLocalizations {
   /// **'Longitude'**
   String get settings_longitude;
 
+  /// No description provided for @settings_contactSettings.
+  ///
+  /// In en, this message translates to:
+  /// **'Contact Settings'**
+  String get settings_contactSettings;
+
+  /// No description provided for @settings_contactSettingsSubtitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Settings for how contacts are added.'**
+  String get settings_contactSettingsSubtitle;
+
   /// No description provided for @settings_privacyMode.
   ///
   /// In en, this message translates to:
@@ -700,6 +874,12 @@ abstract class AppLocalizations {
   /// **'An open-source Flutter client for MeshCore LoRa mesh networking devices.'**
   String get settings_aboutDescription;
 
+  /// No description provided for @settings_aboutOpenMeteoAttribution.
+  ///
+  /// In en, this message translates to:
+  /// **'LOS elevation data: Open-Meteo (CC BY 4.0)'**
+  String get settings_aboutOpenMeteoAttribution;
+
   /// No description provided for @settings_infoName.
   ///
   /// In en, this message translates to:
@@ -964,6 +1144,18 @@ abstract class AppLocalizations {
   /// **'Українська'**
   String get appSettings_languageUk;
 
+  /// No description provided for @appSettings_enableMessageTracing.
+  ///
+  /// In en, this message translates to:
+  /// **'Enable Message Tracing'**
+  String get appSettings_enableMessageTracing;
+
+  /// No description provided for @appSettings_enableMessageTracingSubtitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Show detailed routing and timing metadata for messages'**
+  String get appSettings_enableMessageTracingSubtitle;
+
   /// No description provided for @appSettings_notifications.
   ///
   /// In en, this message translates to:
@@ -1240,6 +1432,24 @@ abstract class AppLocalizations {
   /// **'Offline Map Cache'**
   String get appSettings_offlineMapCache;
 
+  /// No description provided for @appSettings_unitsTitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Units'**
+  String get appSettings_unitsTitle;
+
+  /// No description provided for @appSettings_unitsMetric.
+  ///
+  /// In en, this message translates to:
+  /// **'Metric (m / km)'**
+  String get appSettings_unitsMetric;
+
+  /// No description provided for @appSettings_unitsImperial.
+  ///
+  /// In en, this message translates to:
+  /// **'Imperial (ft / mi)'**
+  String get appSettings_unitsImperial;
+
   /// No description provided for @appSettings_noAreaSelected.
   ///
   /// In en, this message translates to:
@@ -1300,11 +1510,47 @@ abstract class AppLocalizations {
   /// **'Contacts will appear when devices advertise'**
   String get contacts_contactsWillAppear;
 
+  /// No description provided for @contacts_unread.
+  ///
+  /// In en, this message translates to:
+  /// **'Unread'**
+  String get contacts_unread;
+
+  /// No description provided for @contacts_searchContactsNoNumber.
+  ///
+  /// In en, this message translates to:
+  /// **'Search Contacts...'**
+  String get contacts_searchContactsNoNumber;
+
   /// No description provided for @contacts_searchContacts.
   ///
   /// In en, this message translates to:
-  /// **'Search contacts...'**
+  /// **'Search {number}{str} Contacts...'**
-  String get contacts_searchContacts;
+  String contacts_searchContacts(int number, String str);
+
+  /// No description provided for @contacts_searchFavorites.
+  ///
+  /// In en, this message translates to:
+  /// **'Search {number}{str} Favorites...'**
+  String contacts_searchFavorites(int number, String str);
+
+  /// No description provided for @contacts_searchUsers.
+  ///
+  /// In en, this message translates to:
+  /// **'Search {number}{str} Users...'**
+  String contacts_searchUsers(int number, String str);
+
+  /// No description provided for @contacts_searchRepeaters.
+  ///
+  /// In en, this message translates to:
+  /// **'Search {number}{str} Repeaters...'**
+  String contacts_searchRepeaters(int number, String str);
+
+  /// No description provided for @contacts_searchRoomServers.
+  ///
+  /// In en, this message translates to:
+  /// **'Search {number}{str} Room servers...'**
+  String contacts_searchRoomServers(int number, String str);
 
   /// No description provided for @contacts_noUnreadContacts.
   ///
@@ -1417,37 +1663,37 @@ abstract class AppLocalizations {
   /// No description provided for @contacts_lastSeenNow.
   ///
   /// In en, this message translates to:
-  /// **'Last seen now'**
+  /// **'recently'**
   String get contacts_lastSeenNow;
 
   /// No description provided for @contacts_lastSeenMinsAgo.
   ///
   /// In en, this message translates to:
-  /// **'Last seen {minutes} mins ago'**
+  /// **'~ {minutes} min.'**
   String contacts_lastSeenMinsAgo(int minutes);
 
   /// No description provided for @contacts_lastSeenHourAgo.
   ///
   /// In en, this message translates to:
-  /// **'Last seen 1 hour ago'**
+  /// **'~ 1 hour'**
   String get contacts_lastSeenHourAgo;
 
   /// No description provided for @contacts_lastSeenHoursAgo.
   ///
   /// In en, this message translates to:
-  /// **'Last seen {hours} hours ago'**
+  /// **'~ {hours} hours'**
   String contacts_lastSeenHoursAgo(int hours);
 
   /// No description provided for @contacts_lastSeenDayAgo.
   ///
   /// In en, this message translates to:
-  /// **'Last seen 1 day ago'**
+  /// **'~ 1 day'**
   String get contacts_lastSeenDayAgo;
 
   /// No description provided for @contacts_lastSeenDaysAgo.
   ///
   /// In en, this message translates to:
-  /// **'Last seen {days} days ago'**
+  /// **'~ {days} days'**
   String contacts_lastSeenDaysAgo(int days);
 
   /// No description provided for @channels_title.
@@ -1522,6 +1768,18 @@ abstract class AppLocalizations {
   /// **'Edit channel'**
   String get channels_editChannel;
 
+  /// No description provided for @channels_muteChannel.
+  ///
+  /// In en, this message translates to:
+  /// **'Mute channel'**
+  String get channels_muteChannel;
+
+  /// No description provided for @channels_unmuteChannel.
+  ///
+  /// In en, this message translates to:
+  /// **'Unmute channel'**
+  String get channels_unmuteChannel;
+
   /// No description provided for @channels_deleteChannel.
   ///
   /// In en, this message translates to:
@@ -1534,6 +1792,12 @@ abstract class AppLocalizations {
   /// **'Delete \"{name}\"? This cannot be undone.'**
   String channels_deleteChannelConfirm(String name);
 
+  /// No description provided for @channels_channelDeleteFailed.
+  ///
+  /// In en, this message translates to:
+  /// **'Failed to delete channel \"{name}\"'**
+  String channels_channelDeleteFailed(String name);
+
   /// No description provided for @channels_channelDeleted.
   ///
   /// In en, this message translates to:
@@ -2032,6 +2296,12 @@ abstract class AppLocalizations {
   /// **'Path Management'**
   String get chat_pathManagement;
 
+  /// No description provided for @chat_ShowAllPaths.
+  ///
+  /// In en, this message translates to:
+  /// **'Show all paths'**
+  String get chat_ShowAllPaths;
+
   /// No description provided for @chat_routingMode.
   ///
   /// In en, this message translates to:
@@ -2284,6 +2554,18 @@ abstract class AppLocalizations {
   /// **'Node Map'**
   String get map_title;
 
+  /// No description provided for @map_lineOfSight.
+  ///
+  /// In en, this message translates to:
+  /// **'Line of Sight'**
+  String get map_lineOfSight;
+
+  /// No description provided for @map_losScreenTitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Line of Sight'**
+  String get map_losScreenTitle;
+
   /// No description provided for @map_noNodesWithLocation.
   ///
   /// In en, this message translates to:
@@ -2500,6 +2782,18 @@ abstract class AppLocalizations {
   /// **'Show shared markers'**
   String get map_showSharedMarkers;
 
+  /// No description provided for @map_showGuessedLocations.
+  ///
+  /// In en, this message translates to:
+  /// **'Show guessed node locations'**
+  String get map_showGuessedLocations;
+
+  /// No description provided for @map_guessedLocation.
+  ///
+  /// In en, this message translates to:
+  /// **'Guessed location'**
+  String get map_guessedLocation;
+
   /// No description provided for @map_lastSeenTime.
   ///
   /// In en, this message translates to:
@@ -3027,17 +3321,17 @@ abstract class AppLocalizations {
   /// **'Send commands to the repeater'**
   String get repeater_cliSubtitle;
 
-  /// No description provided for @repeater_neighbours.
+  /// No description provided for @repeater_neighbors.
   ///
   /// In en, this message translates to:
   /// **'Neighbors'**
-  String get repeater_neighbours;
+  String get repeater_neighbors;
 
-  /// No description provided for @repeater_neighboursSubtitle.
+  /// No description provided for @repeater_neighborsSubtitle.
   ///
   /// In en, this message translates to:
   /// **'View zero hop neighbors.'**
-  String get repeater_neighboursSubtitle;
+  String get repeater_neighborsSubtitle;
 
   /// No description provided for @repeater_settings.
   ///
@@ -4181,13 +4475,13 @@ abstract class AppLocalizations {
   /// No description provided for @neighbors_receivedData.
   ///
   /// In en, this message translates to:
-  /// **'Received Neighbours Data'**
+  /// **'Received Neighbors Data'**
   String get neighbors_receivedData;
 
   /// No description provided for @neighbors_requestTimedOut.
   ///
   /// In en, this message translates to:
-  /// **'Neighbours request timed out.'**
+  /// **'Neighbors request timed out.'**
   String get neighbors_requestTimedOut;
 
   /// No description provided for @neighbors_errorLoading.
@@ -4196,16 +4490,16 @@ abstract class AppLocalizations {
   /// **'Error loading neighbors: {error}'**
   String neighbors_errorLoading(String error);
 
-  /// No description provided for @neighbors_repeatersNeighbours.
+  /// No description provided for @neighbors_repeatersNeighbors.
   ///
   /// In en, this message translates to:
-  /// **'Repeaters Neighbours'**
+  /// **'Repeaters Neighbors'**
-  String get neighbors_repeatersNeighbours;
+  String get neighbors_repeatersNeighbors;
 
   /// No description provided for @neighbors_noData.
   ///
   /// In en, this message translates to:
-  /// **'No neighbours data available.'**
+  /// **'No neighbors data available.'**
   String get neighbors_noData;
 
   /// No description provided for @neighbors_unknownContact.
@@ -4700,6 +4994,24 @@ abstract class AppLocalizations {
   /// **'All'**
   String get listFilter_all;
 
+  /// No description provided for @listFilter_favorites.
+  ///
+  /// In en, this message translates to:
+  /// **'Favorites'**
+  String get listFilter_favorites;
+
+  /// No description provided for @listFilter_addToFavorites.
+  ///
+  /// In en, this message translates to:
+  /// **'Add to favorites'**
+  String get listFilter_addToFavorites;
+
+  /// No description provided for @listFilter_removeFromFavorites.
+  ///
+  /// In en, this message translates to:
+  /// **'Remove from favorites'**
+  String get listFilter_removeFromFavorites;
+
   /// No description provided for @listFilter_users.
   ///
   /// In en, this message translates to:
@@ -4766,6 +5078,225 @@ abstract class AppLocalizations {
   /// **'Clear path.'**
   String get pathTrace_clearTooltip;
 
+  /// No description provided for @losSelectStartEnd.
+  ///
+  /// In en, this message translates to:
+  /// **'Select start and end nodes for LOS.'**
+  String get losSelectStartEnd;
+
+  /// No description provided for @losRunFailed.
+  ///
+  /// In en, this message translates to:
+  /// **'Line-of-sight check failed: {error}'**
+  String losRunFailed(String error);
+
+  /// No description provided for @losClearAllPoints.
+  ///
+  /// In en, this message translates to:
+  /// **'Clear all points'**
+  String get losClearAllPoints;
+
+  /// No description provided for @losRunToViewElevationProfile.
+  ///
+  /// In en, this message translates to:
+  /// **'Run LOS to view elevation profile'**
+  String get losRunToViewElevationProfile;
+
+  /// No description provided for @losMenuTitle.
+  ///
+  /// In en, this message translates to:
+  /// **'LOS Menu'**
+  String get losMenuTitle;
+
+  /// No description provided for @losMenuSubtitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Tap nodes or long-press map for custom points'**
+  String get losMenuSubtitle;
+
+  /// No description provided for @losShowDisplayNodes.
+  ///
+  /// In en, this message translates to:
+  /// **'Show display nodes'**
+  String get losShowDisplayNodes;
+
+  /// No description provided for @losCustomPoints.
+  ///
+  /// In en, this message translates to:
+  /// **'Custom points'**
+  String get losCustomPoints;
+
+  /// No description provided for @losCustomPointLabel.
+  ///
+  /// In en, this message translates to:
+  /// **'Custom {index}'**
+  String losCustomPointLabel(int index);
+
+  /// No description provided for @losPointA.
+  ///
+  /// In en, this message translates to:
+  /// **'Point A'**
+  String get losPointA;
+
+  /// No description provided for @losPointB.
+  ///
+  /// In en, this message translates to:
+  /// **'Point B'**
+  String get losPointB;
+
+  /// No description provided for @losAntennaA.
+  ///
+  /// In en, this message translates to:
+  /// **'Antenna A: {value} {unit}'**
+  String losAntennaA(String value, String unit);
+
+  /// No description provided for @losAntennaB.
+  ///
+  /// In en, this message translates to:
+  /// **'Antenna B: {value} {unit}'**
+  String losAntennaB(String value, String unit);
+
+  /// No description provided for @losRun.
+  ///
+  /// In en, this message translates to:
+  /// **'Run LOS'**
+  String get losRun;
+
+  /// No description provided for @losNoElevationData.
+  ///
+  /// In en, this message translates to:
+  /// **'No elevation data'**
+  String get losNoElevationData;
+
+  /// No description provided for @losProfileClear.
+  ///
+  /// In en, this message translates to:
+  /// **'{distance} {distanceUnit}, clear LOS, min clearance {clearance} {heightUnit}'**
+  String losProfileClear(
+    String distance,
+    String distanceUnit,
+    String clearance,
+    String heightUnit,
+  );
+
+  /// No description provided for @losProfileBlocked.
+  ///
+  /// In en, this message translates to:
+  /// **'{distance} {distanceUnit}, blocked by {obstruction} {heightUnit}'**
+  String losProfileBlocked(
+    String distance,
+    String distanceUnit,
+    String obstruction,
+    String heightUnit,
+  );
+
+  /// No description provided for @losStatusChecking.
+  ///
+  /// In en, this message translates to:
+  /// **'LOS: checking...'**
+  String get losStatusChecking;
+
+  /// No description provided for @losStatusNoData.
+  ///
+  /// In en, this message translates to:
+  /// **'LOS: no data'**
+  String get losStatusNoData;
+
+  /// No description provided for @losStatusSummary.
+  ///
+  /// In en, this message translates to:
+  /// **'LOS: {clear}/{total} clear, {blocked} blocked, {unknown} unknown'**
+  String losStatusSummary(int clear, int total, int blocked, int unknown);
+
+  /// No description provided for @losErrorElevationUnavailable.
+  ///
+  /// In en, this message translates to:
+  /// **'Elevation data unavailable for one or more samples.'**
+  String get losErrorElevationUnavailable;
+
+  /// No description provided for @losErrorInvalidInput.
+  ///
+  /// In en, this message translates to:
+  /// **'Invalid points/elevation data for LOS calculation.'**
+  String get losErrorInvalidInput;
+
+  /// No description provided for @losRenameCustomPoint.
+  ///
+  /// In en, this message translates to:
+  /// **'Rename custom point'**
+  String get losRenameCustomPoint;
+
+  /// No description provided for @losPointName.
+  ///
+  /// In en, this message translates to:
+  /// **'Point name'**
+  String get losPointName;
+
+  /// No description provided for @losShowPanelTooltip.
+  ///
+  /// In en, this message translates to:
+  /// **'Show LOS panel'**
+  String get losShowPanelTooltip;
+
+  /// No description provided for @losHidePanelTooltip.
+  ///
+  /// In en, this message translates to:
+  /// **'Hide LOS panel'**
+  String get losHidePanelTooltip;
+
+  /// No description provided for @losElevationAttribution.
+  ///
+  /// In en, this message translates to:
+  /// **'Elevation data: Open-Meteo (CC BY 4.0)'**
+  String get losElevationAttribution;
+
+  /// No description provided for @losLegendRadioHorizon.
+  ///
+  /// In en, this message translates to:
+  /// **'Radio horizon'**
+  String get losLegendRadioHorizon;
+
+  /// No description provided for @losLegendLosBeam.
+  ///
+  /// In en, this message translates to:
+  /// **'LOS beam'**
+  String get losLegendLosBeam;
+
+  /// No description provided for @losLegendTerrain.
+  ///
+  /// In en, this message translates to:
+  /// **'Terrain'**
+  String get losLegendTerrain;
+
+  /// No description provided for @losFrequencyLabel.
+  ///
+  /// In en, this message translates to:
+  /// **'Frequency'**
+  String get losFrequencyLabel;
+
+  /// No description provided for @losFrequencyInfoTooltip.
+  ///
+  /// In en, this message translates to:
+  /// **'View calculation details'**
+  String get losFrequencyInfoTooltip;
+
+  /// No description provided for @losFrequencyDialogTitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Radio horizon calculation'**
+  String get losFrequencyDialogTitle;
+
+  /// Explain how the calculation uses the baseline frequency and derived k-factor.
+  ///
+  /// In en, this message translates to:
+  /// **'Starting from k={baselineK} at {baselineFreq} MHz, the calculation adjusts the k-factor for the current {frequencyMHz} MHz band, which defines the curved radio horizon cap.'**
+  String losFrequencyDialogDescription(
+    double baselineK,
+    double baselineFreq,
+    double frequencyMHz,
+    double kFactor,
+  );
+
   /// No description provided for @contacts_pathTrace.
   ///
   /// In en, this message translates to:
@@ -5023,6 +5554,150 @@ abstract class AppLocalizations {
   /// In en, this message translates to:
   /// **'meshcore-open GPX map data export'**
   String get settings_gpxExportShareSubject;
+
+  /// No description provided for @snrIndicator_nearByRepeaters.
+  ///
+  /// In en, this message translates to:
+  /// **'Nearby Repeaters'**
+  String get snrIndicator_nearByRepeaters;
+
+  /// No description provided for @snrIndicator_lastSeen.
+  ///
+  /// In en, this message translates to:
+  /// **'Last seen'**
+  String get snrIndicator_lastSeen;
+
+  /// No description provided for @contactsSettings_title.
+  ///
+  /// In en, this message translates to:
+  /// **'Contacts settings'**
+  String get contactsSettings_title;
+
+  /// No description provided for @contactsSettings_autoAddTitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Automatic Discovery'**
+  String get contactsSettings_autoAddTitle;
+
+  /// No description provided for @contactsSettings_otherTitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Other contact related settings'**
+  String get contactsSettings_otherTitle;
+
+  /// No description provided for @contactsSettings_autoAddUsersTitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Auto-add users'**
+  String get contactsSettings_autoAddUsersTitle;
+
+  /// No description provided for @contactsSettings_autoAddUsersSubtitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Allow the companion to automatically add discovered users.'**
+  String get contactsSettings_autoAddUsersSubtitle;
+
+  /// No description provided for @contactsSettings_autoAddRepeatersTitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Auto-add repeaters'**
+  String get contactsSettings_autoAddRepeatersTitle;
+
+  /// No description provided for @contactsSettings_autoAddRepeatersSubtitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Allow the companion to automatically add discovered repeaters.'**
+  String get contactsSettings_autoAddRepeatersSubtitle;
+
+  /// No description provided for @contactsSettings_autoAddRoomServersTitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Auto-add room servers'**
+  String get contactsSettings_autoAddRoomServersTitle;
+
+  /// No description provided for @contactsSettings_autoAddRoomServersSubtitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Allow the companion to automatically add discovered room servers.'**
+  String get contactsSettings_autoAddRoomServersSubtitle;
+
+  /// No description provided for @contactsSettings_autoAddSensorsTitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Auto-add sensors'**
+  String get contactsSettings_autoAddSensorsTitle;
+
+  /// No description provided for @contactsSettings_autoAddSensorsSubtitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Allow the companion to automatically add discovered sensors.'**
+  String get contactsSettings_autoAddSensorsSubtitle;
+
+  /// No description provided for @contactsSettings_overwriteOldestTitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Overwrite Oldest'**
+  String get contactsSettings_overwriteOldestTitle;
+
+  /// No description provided for @contactsSettings_overwriteOldestSubtitle.
+  ///
+  /// In en, this message translates to:
+  /// **'When the contact list is full, the oldest non-favorited contact will be replaced.'**
+  String get contactsSettings_overwriteOldestSubtitle;
+
+  /// No description provided for @discoveredContacts_Title.
+  ///
+  /// In en, this message translates to:
+  /// **'Discovered Contacts'**
+  String get discoveredContacts_Title;
+
+  /// No description provided for @discoveredContacts_noMatching.
+  ///
+  /// In en, this message translates to:
+  /// **'No matching contacts'**
+  String get discoveredContacts_noMatching;
+
+  /// No description provided for @discoveredContacts_searchHint.
+  ///
+  /// In en, this message translates to:
+  /// **'Search discovered contacts'**
+  String get discoveredContacts_searchHint;
+
+  /// No description provided for @discoveredContacts_contactAdded.
+  ///
+  /// In en, this message translates to:
+  /// **'Contact added'**
+  String get discoveredContacts_contactAdded;
+
+  /// No description provided for @discoveredContacts_addContact.
+  ///
+  /// In en, this message translates to:
+  /// **'Add Contact'**
+  String get discoveredContacts_addContact;
+
+  /// No description provided for @discoveredContacts_copyContact.
+  ///
+  /// In en, this message translates to:
+  /// **'Copy Contact to clipboard'**
+  String get discoveredContacts_copyContact;
+
+  /// No description provided for @discoveredContacts_deleteContact.
+  ///
+  /// In en, this message translates to:
+  /// **'Delete Discovered Contact'**
+  String get discoveredContacts_deleteContact;
+
+  /// No description provided for @discoveredContacts_deleteContactAll.
+  ///
+  /// In en, this message translates to:
+  /// **'Delete All Discovered Contacts'**
+  String get discoveredContacts_deleteContactAll;
+
+  /// No description provided for @discoveredContacts_deleteContactAllContent.
+  ///
+  /// In en, this message translates to:
+  /// **'Are you sure you want to delete all discovered contacts?'**
+  String get discoveredContacts_deleteContactAllContent;
 }
 
 class _AppLocalizationsDelegate

lib/l10n/app_localizations_bg.dart

@@ -38,6 +38,9 @@ class AppLocalizationsBg extends AppLocalizations {
   @override
   String get common_delete => 'Изтрий';
 
+  @override
+  String get common_deleteAll => 'Изтрий всичко';
+
   @override
   String get common_close => 'Затвори';
 
@@ -108,6 +111,90 @@ class AppLocalizationsBg extends AppLocalizations {
   @override
   String get scanner_title => 'MeshCore Open';
 
+  @override
+  String get connectionChoiceUsbLabel => 'USB';
+
+  @override
+  String get connectionChoiceBluetoothLabel => 'Bluetooth';
+
+  @override
+  String get usbScreenTitle => 'Свържете се чрез USB';
+
+  @override
+  String get usbScreenSubtitle =>
+      'Изберете открития сериен уред и свържете директно към вашия MeshCore възел.';
+
+  @override
+  String get usbScreenStatus => 'Изберете USB устройство';
+
+  @override
+  String get usbScreenNote =>
+      'USB серийната връзка е активна на поддържаните Android устройства и настолни платформи.';
+
+  @override
+  String get usbScreenEmptyState =>
+      'Няма открити USB устройства. Включете едно и опитайте отново.';
+
+  @override
+  String get usbErrorPermissionDenied => 'Не беше разрешено достъпът през USB.';
+
+  @override
+  String get usbErrorDeviceMissing =>
+      'Избраното USB устройство вече не е налично.';
+
+  @override
+  String get usbErrorInvalidPort => 'Изберете валитно USB устройство.';
+
+  @override
+  String get usbErrorBusy =>
+      'Друг мол за свързване през USB вече е в процес на изпълнение.';
+
+  @override
+  String get usbErrorNotConnected => 'Няма свързано USB устройство.';
+
+  @override
+  String get usbErrorOpenFailed =>
+      'Не успях да отворя избраното USB устройство.';
+
+  @override
+  String get usbErrorConnectFailed =>
+      'Не успях да се свържа с избраното USB устройство.';
+
+  @override
+  String get usbErrorUnsupported =>
+      'USB серийната комуникация не се поддържа на тази платформа.';
+
+  @override
+  String get usbErrorAlreadyActive => 'USB връзката вече е активирана.';
+
+  @override
+  String get usbErrorNoDeviceSelected => 'Няма избран USB устройство.';
+
+  @override
+  String get usbErrorPortClosed => 'USB връзката не е активна.';
+
+  @override
+  String get usbErrorConnectTimedOut =>
+      'Връзката прекъсна. Уверете се, че устройството има софтуер за USB връзка.';
+
+  @override
+  String get usbFallbackDeviceName =>
+      'Устройство за четене на уеб серийни данни';
+
+  @override
+  String get usbStatus_notConnected => 'Изберете USB устройство';
+
+  @override
+  String get usbStatus_connecting => 'Свързване към USB устройство...';
+
+  @override
+  String get usbStatus_searching => 'Търсене на USB устройства...';
+
+  @override
+  String usbConnectionFailed(String error) {
+    return 'Неуспешно свързване през USB: $error';
+  }
+
   @override
   String get scanner_scanning => 'Сканиране за устройства...';
 
@@ -150,6 +237,13 @@ class AppLocalizationsBg extends AppLocalizations {
   String get scanner_bluetoothOffMessage =>
       'Моля, активирайте Bluetooth, за да сканирате за устройства.';
 
+  @override
+  String get scanner_chromeRequired => 'Изисква се браузър Chrome';
+
+  @override
+  String get scanner_chromeRequiredMessage =>
+      'Това уеб приложение изисква Google Chrome или браузър, базиран на Chromium, за поддръжка на Bluetooth.';
+
   @override
   String get scanner_enableBluetooth => 'Активирайте Bluetooth';
 
@@ -234,6 +328,13 @@ class AppLocalizationsBg extends AppLocalizations {
   @override
   String get settings_longitude => 'Дължина';
 
+  @override
+  String get settings_contactSettings => 'Настройки за контакти';
+
+  @override
+  String get settings_contactSettingsSubtitle =>
+      'Настройки за добавяне на контакти.';
+
   @override
   String get settings_privacyMode => 'Режим на поверителност';
 
@@ -326,6 +427,10 @@ class AppLocalizationsBg extends AppLocalizations {
   String get settings_aboutDescription =>
       'Отворен софтуер за Flutter клиент за MeshCore LoRa мрежови устройства.';
 
+  @override
+  String get settings_aboutOpenMeteoAttribution =>
+      'Данни за надморска височина на LOS: Open-Meteo (CC BY 4.0)';
+
   @override
   String get settings_infoName => 'Име';
 
@@ -462,6 +567,14 @@ class AppLocalizationsBg extends AppLocalizations {
   @override
   String get appSettings_languageUk => 'Украински';
 
+  @override
+  String get appSettings_enableMessageTracing =>
+      'Разрешаване на проследяване на съобщения';
+
+  @override
+  String get appSettings_enableMessageTracingSubtitle =>
+      'Показване на подробни метаданни за маршрутизация и синхронизация за съобщения';
+
   @override
   String get appSettings_notifications => 'Уведомления';
 
@@ -622,6 +735,15 @@ class AppLocalizationsBg extends AppLocalizations {
   @override
   String get appSettings_offlineMapCache => 'Кеш на офлайн карти';
 
+  @override
+  String get appSettings_unitsTitle => 'единици';
+
+  @override
+  String get appSettings_unitsMetric => 'Метрика (m / km)';
+
+  @override
+  String get appSettings_unitsImperial => 'Имперска (ft / mi)';
+
   @override
   String get appSettings_noAreaSelected => 'Няма избрана област';
 
@@ -660,7 +782,35 @@ class AppLocalizationsBg extends AppLocalizations {
       'Контактите ще се появят, когато устройствата рекламират.';
 
   @override
-  String get contacts_searchContacts => 'Търсене на контакти...';
+  String get contacts_unread => 'Непрочетено';
+
+  @override
+  String get contacts_searchContactsNoNumber => 'Търси контакти...';
+
+  @override
+  String contacts_searchContacts(int number, String str) {
+    return 'Търсене на контакти...';
+  }
+
+  @override
+  String contacts_searchFavorites(int number, String str) {
+    return 'Търсене на $number$str любими...';
+  }
+
+  @override
+  String contacts_searchUsers(int number, String str) {
+    return 'Търсене на $number$str потребители...';
+  }
+
+  @override
+  String contacts_searchRepeaters(int number, String str) {
+    return 'Търсене на $number$str повтарящи се...';
+  }
+
+  @override
+  String contacts_searchRoomServers(int number, String str) {
+    return 'Търсене на $number$str сървъри в стаята...';
+  }
 
   @override
   String get contacts_noUnreadContacts => 'Няма непрочетени контакти';
@@ -785,6 +935,12 @@ class AppLocalizationsBg extends AppLocalizations {
   @override
   String get channels_editChannel => 'Редактирай канал';
 
+  @override
+  String get channels_muteChannel => 'Заглуши канала';
+
+  @override
+  String get channels_unmuteChannel => 'Включи известията на канала';
+
   @override
   String get channels_deleteChannel => 'Изтрий канала';
 
@@ -793,6 +949,11 @@ class AppLocalizationsBg extends AppLocalizations {
     return 'Изтрий \"$name\"? Това не може да бъде отменено.';
   }
 
+  @override
+  String channels_channelDeleteFailed(String name) {
+    return 'Неуспешно изтриване на канала \"$name\"';
+  }
+
   @override
   String channels_channelDeleted(String name) {
     return 'Каналът \"$name\" е изтрит';
@@ -1080,6 +1241,9 @@ class AppLocalizationsBg extends AppLocalizations {
   @override
   String get chat_pathManagement => 'Управление на пътища';
 
+  @override
+  String get chat_ShowAllPaths => 'Покажи всички пътища';
+
   @override
   String get chat_routingMode => 'Режим на маршрутизиране';
 
@@ -1240,6 +1404,12 @@ class AppLocalizationsBg extends AppLocalizations {
   @override
   String get map_title => 'Карта на възлите';
 
+  @override
+  String get map_lineOfSight => 'Линия на видимост';
+
+  @override
+  String get map_losScreenTitle => 'Линия на видимост';
+
   @override
   String get map_noNodesWithLocation => 'Няма възли с данни за местоположение.';
 
@@ -1357,6 +1527,13 @@ class AppLocalizationsBg extends AppLocalizations {
   @override
   String get map_showSharedMarkers => 'Покажи споделени маркери';
 
+  @override
+  String get map_showGuessedLocations =>
+      'Покажете местоположенията на предположените възли.';
+
+  @override
+  String get map_guessedLocation => 'Предполагано местоположение';
+
   @override
   String get map_lastSeenTime => 'Последна видяна дата';
 
@@ -1677,10 +1854,10 @@ class AppLocalizationsBg extends AppLocalizations {
   String get repeater_cliSubtitle => 'Изпрати команди към ретранслатора';
 
   @override
-  String get repeater_neighbours => 'Съседи';
+  String get repeater_neighbors => 'Съседи';
 
   @override
-  String get repeater_neighboursSubtitle =>
+  String get repeater_neighborsSubtitle =>
       'Преглед на съседни възли с нулев скок.';
 
   @override
@@ -2380,7 +2557,7 @@ class AppLocalizationsBg extends AppLocalizations {
   }
 
   @override
-  String get neighbors_repeatersNeighbours => 'Повторители Съседи';
+  String get neighbors_repeatersNeighbors => 'Повторители Съседи';
 
   @override
   String get neighbors_noData => 'Няма налични данни за съседи.';
@@ -2687,6 +2864,15 @@ class AppLocalizationsBg extends AppLocalizations {
   @override
   String get listFilter_all => 'Всички';
 
+  @override
+  String get listFilter_favorites => 'Любими';
+
+  @override
+  String get listFilter_addToFavorites => 'Добави към любими';
+
+  @override
+  String get listFilter_removeFromFavorites => 'Премахване от списъка с любими';
+
   @override
   String get listFilter_users => 'Потребители';
 
@@ -2721,6 +2907,144 @@ class AppLocalizationsBg extends AppLocalizations {
   @override
   String get pathTrace_clearTooltip => 'Изчисти пътя';
 
+  @override
+  String get losSelectStartEnd => 'Изберете начални и крайни възли за LOS.';
+
+  @override
+  String losRunFailed(String error) {
+    return 'Проверката на пряката видимост е неуспешна: $error';
+  }
+
+  @override
+  String get losClearAllPoints => 'Изчистете всички точки';
+
+  @override
+  String get losRunToViewElevationProfile =>
+      'Стартирайте LOS, за да видите профила на надморската височина';
+
+  @override
+  String get losMenuTitle => 'LOS меню';
+
+  @override
+  String get losMenuSubtitle =>
+      'Докоснете възли или натиснете продължително карта за персонализирани точки';
+
+  @override
+  String get losShowDisplayNodes => 'Показване на възли на дисплея';
+
+  @override
+  String get losCustomPoints => 'Персонализирани точки';
+
+  @override
+  String losCustomPointLabel(int index) {
+    return 'Персонализирано $index';
+  }
+
+  @override
+  String get losPointA => 'Точка А';
+
+  @override
+  String get losPointB => 'Точка Б';
+
+  @override
+  String losAntennaA(String value, String unit) {
+    return 'Антена A: $value $unit';
+  }
+
+  @override
+  String losAntennaB(String value, String unit) {
+    return 'Антена B: $value $unit';
+  }
+
+  @override
+  String get losRun => 'Стартирайте LOS';
+
+  @override
+  String get losNoElevationData => 'Няма данни за надморска височина';
+
+  @override
+  String losProfileClear(
+    String distance,
+    String distanceUnit,
+    String clearance,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, чист LOS, минимално разстояние $clearance $heightUnit';
+  }
+
+  @override
+  String losProfileBlocked(
+    String distance,
+    String distanceUnit,
+    String obstruction,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, блокиран от $obstruction $heightUnit';
+  }
+
+  @override
+  String get losStatusChecking => 'LOS: проверка...';
+
+  @override
+  String get losStatusNoData => 'LOS: няма данни';
+
+  @override
+  String losStatusSummary(int clear, int total, int blocked, int unknown) {
+    return 'LOS: $clear/$total ясно, $blocked блокирано, $unknown неизвестно';
+  }
+
+  @override
+  String get losErrorElevationUnavailable =>
+      'Няма налични данни за надморска височина за една или повече проби.';
+
+  @override
+  String get losErrorInvalidInput =>
+      'Невалидни данни за точки/надморска височина за изчисляване на LOS.';
+
+  @override
+  String get losRenameCustomPoint => 'Преименувайте персонализирана точка';
+
+  @override
+  String get losPointName => 'Име на точката';
+
+  @override
+  String get losShowPanelTooltip => 'Показване на LOS панел';
+
+  @override
+  String get losHidePanelTooltip => 'Скриване на LOS панела';
+
+  @override
+  String get losElevationAttribution =>
+      'Данни за надморска височина: Open-Meteo (CC BY 4.0)';
+
+  @override
+  String get losLegendRadioHorizon => 'Радиохоризонт';
+
+  @override
+  String get losLegendLosBeam => 'Линия на видимост';
+
+  @override
+  String get losLegendTerrain => 'Терен';
+
+  @override
+  String get losFrequencyLabel => 'Честота';
+
+  @override
+  String get losFrequencyInfoTooltip => 'Преглед на детайли за изчислението';
+
+  @override
+  String get losFrequencyDialogTitle => 'Изчисляване на радиохоризонта';
+
+  @override
+  String losFrequencyDialogDescription(
+    double baselineK,
+    double baselineFreq,
+    double frequencyMHz,
+    double kFactor,
+  ) {
+    return 'Започвайки от k=$baselineK при $baselineFreq MHz, изчислението коригира k-фактора за текущата $frequencyMHz MHz лента, която определя границата на извития радиохоризонт.';
+  }
+
   @override
   String get contacts_pathTrace => 'Пътен проследяване';
 
@@ -2890,4 +3214,88 @@ class AppLocalizationsBg extends AppLocalizations {
   @override
   String get settings_gpxExportShareSubject =>
       'meshcore-open износ на данни за карта в формат GPX';
+
+  @override
+  String get snrIndicator_nearByRepeaters => 'Близки повтарящи се устройства';
+
+  @override
+  String get snrIndicator_lastSeen => 'Последно видян';
+
+  @override
+  String get contactsSettings_title => 'Настройки на контактите';
+
+  @override
+  String get contactsSettings_autoAddTitle => 'Автоматично откриване';
+
+  @override
+  String get contactsSettings_otherTitle =>
+      'Други настройки свързани с контакти';
+
+  @override
+  String get contactsSettings_autoAddUsersTitle =>
+      'Автоматично добавяне на потребители';
+
+  @override
+  String get contactsSettings_autoAddUsersSubtitle =>
+      'Позволи на спътника да добавя автоматично откритите потребители.';
+
+  @override
+  String get contactsSettings_autoAddRepeatersTitle =>
+      'Автоматично добавяне на повтарящи се елементи';
+
+  @override
+  String get contactsSettings_autoAddRepeatersSubtitle =>
+      'Позволи на спътника да добавя автоматично откритите повтарящи се устройства.';
+
+  @override
+  String get contactsSettings_autoAddRoomServersTitle =>
+      'Автоматично добавяне на сървъри на стаите';
+
+  @override
+  String get contactsSettings_autoAddRoomServersSubtitle =>
+      'Позволи на спътника да добавя автоматично откритите сървъри на стаите.';
+
+  @override
+  String get contactsSettings_autoAddSensorsTitle =>
+      'Автоматично добавяне на датчици';
+
+  @override
+  String get contactsSettings_autoAddSensorsSubtitle =>
+      'Позволи на спътника да добавя автоматично откритите датчици.';
+
+  @override
+  String get contactsSettings_overwriteOldestTitle => 'Премахни най-старото';
+
+  @override
+  String get contactsSettings_overwriteOldestSubtitle =>
+      'Когато списъкът с контакти е пълен, най-старият неключов контакт ще бъде заменен.';
+
+  @override
+  String get discoveredContacts_Title => 'Открити контакти';
+
+  @override
+  String get discoveredContacts_noMatching => 'Няма съвпадащи контакти';
+
+  @override
+  String get discoveredContacts_searchHint => 'Търсене на открити контакти';
+
+  @override
+  String get discoveredContacts_contactAdded => 'Контакт добавен';
+
+  @override
+  String get discoveredContacts_addContact => 'Добави контакт';
+
+  @override
+  String get discoveredContacts_copyContact => 'Копирай контакт в клипборда';
+
+  @override
+  String get discoveredContacts_deleteContact => 'Изтрий контакт';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Изтриване на Всички Открити Контакти';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Сигурни ли сте, че искате да изтриете всички открити контакти?';
 }

lib/l10n/app_localizations_de.dart

@@ -38,6 +38,9 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get common_delete => 'Löschen';
 
+  @override
+  String get common_deleteAll => 'Alles löschen';
+
   @override
   String get common_close => 'Schließen';
 
@@ -108,6 +111,91 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get scanner_title => 'MeshCore Open';
 
+  @override
+  String get connectionChoiceUsbLabel => 'USB';
+
+  @override
+  String get connectionChoiceBluetoothLabel => 'Bluetooth';
+
+  @override
+  String get usbScreenTitle => 'Verbinden über USB';
+
+  @override
+  String get usbScreenSubtitle =>
+      'Wählen Sie ein erkannten serielles Gerät aus und verbinden Sie es direkt mit Ihrem MeshCore-Knoten.';
+
+  @override
+  String get usbScreenStatus => 'Wählen Sie ein USB-Gerät aus';
+
+  @override
+  String get usbScreenNote =>
+      'Die USB-Serielle Schnittstelle ist auf unterstützten Android-Geräten und Desktop-Plattformen aktiv.';
+
+  @override
+  String get usbScreenEmptyState =>
+      'Keine USB-Geräte gefunden. Schließen Sie eines an und aktualisieren Sie.';
+
+  @override
+  String get usbErrorPermissionDenied =>
+      'Die USB-Berechtigung wurde abgelehnt.';
+
+  @override
+  String get usbErrorDeviceMissing =>
+      'Das ausgewählte USB-Gerät ist nicht mehr verfügbar.';
+
+  @override
+  String get usbErrorInvalidPort => 'Wählen Sie ein gültiges USB-Gerät aus.';
+
+  @override
+  String get usbErrorBusy =>
+      'Eine weitere Anfrage für eine USB-Verbindung ist bereits in Bearbeitung.';
+
+  @override
+  String get usbErrorNotConnected => 'Es ist kein USB-Gerät angeschlossen.';
+
+  @override
+  String get usbErrorOpenFailed =>
+      'Fehlgeschlagen beim Öffnen des ausgewählten USB-Geräts.';
+
+  @override
+  String get usbErrorConnectFailed =>
+      'Keine Verbindung zum ausgewählten USB-Gerät hergestellt.';
+
+  @override
+  String get usbErrorUnsupported =>
+      'Die USB-Serielle Schnittstelle wird auf dieser Plattform nicht unterstützt.';
+
+  @override
+  String get usbErrorAlreadyActive =>
+      'Eine USB-Verbindung ist bereits hergestellt.';
+
+  @override
+  String get usbErrorNoDeviceSelected => 'Kein USB-Gerät wurde ausgewählt.';
+
+  @override
+  String get usbErrorPortClosed => 'Die USB-Verbindung ist nicht aktiv.';
+
+  @override
+  String get usbErrorConnectTimedOut =>
+      'Verbindung konnte nicht hergestellt werden. Stellen Sie sicher, dass das Gerät die entsprechende USB-Firmware enthält.';
+
+  @override
+  String get usbFallbackDeviceName => 'Web-Serielle Geräte';
+
+  @override
+  String get usbStatus_notConnected => 'Wählen Sie ein USB-Gerät aus';
+
+  @override
+  String get usbStatus_connecting => 'Verbindung zum USB-Gerät...';
+
+  @override
+  String get usbStatus_searching => 'Suche nach USB-Geräten...';
+
+  @override
+  String usbConnectionFailed(String error) {
+    return 'Fehler beim USB-Verbindungsaufbau: $error';
+  }
+
   @override
   String get scanner_scanning => 'Scannen nach Geräten...';
 
@@ -150,6 +238,13 @@ class AppLocalizationsDe extends AppLocalizations {
   String get scanner_bluetoothOffMessage =>
       'Bitte aktivieren Sie Bluetooth, um nach Geräten zu suchen.';
 
+  @override
+  String get scanner_chromeRequired => 'Chrome Browser erforderlich';
+
+  @override
+  String get scanner_chromeRequiredMessage =>
+      'Diese Webanwendung erfordert Google Chrome oder einen Chromium-basierten Browser für die Bluetooth-Unterstützung.';
+
   @override
   String get scanner_enableBluetooth => 'Bluetooth aktivieren';
 
@@ -233,6 +328,13 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get settings_longitude => 'Längengrad';
 
+  @override
+  String get settings_contactSettings => 'Kontakteinstellungen';
+
+  @override
+  String get settings_contactSettingsSubtitle =>
+      'Einstellungen für das Hinzufügen von Kontakten';
+
   @override
   String get settings_privacyMode => 'Privatsphäreeinstellung';
 
@@ -320,6 +422,10 @@ class AppLocalizationsDe extends AppLocalizations {
   String get settings_aboutDescription =>
       'Ein Open-Source-Flutter-Client für MeshCore LoRa-Meshnetzwerkgeräte.';
 
+  @override
+  String get settings_aboutOpenMeteoAttribution =>
+      'LOS-Höhendaten: Open-Meteo (CC BY 4.0)';
+
   @override
   String get settings_infoName => 'Name';
 
@@ -456,6 +562,14 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get appSettings_languageUk => 'Ukrainisch';
 
+  @override
+  String get appSettings_enableMessageTracing =>
+      'Nachrichtenverfolgung aktivieren';
+
+  @override
+  String get appSettings_enableMessageTracingSubtitle =>
+      'Detaillierte Routing- und Timing-Metadaten für Nachrichten anzeigen';
+
   @override
   String get appSettings_notifications => 'Benachrichtigungen';
 
@@ -619,6 +733,15 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get appSettings_offlineMapCache => 'Offline-Karten-Cache';
 
+  @override
+  String get appSettings_unitsTitle => 'Einheiten';
+
+  @override
+  String get appSettings_unitsMetric => 'Metrisch (m/km)';
+
+  @override
+  String get appSettings_unitsImperial => 'Imperial (ft/mi)';
+
   @override
   String get appSettings_noAreaSelected => 'Kein Bereich ausgewählt';
 
@@ -656,7 +779,35 @@ class AppLocalizationsDe extends AppLocalizations {
       'Kontakte werden angezeigt, wenn Geräte eine Ankündigung machen.';
 
   @override
-  String get contacts_searchContacts => 'Suche Kontakte...';
+  String get contacts_unread => 'Ungelesen';
+
+  @override
+  String get contacts_searchContactsNoNumber => 'Kontakte suchen...';
+
+  @override
+  String contacts_searchContacts(int number, String str) {
+    return 'Suche Kontakte...';
+  }
+
+  @override
+  String contacts_searchFavorites(int number, String str) {
+    return 'Suche $number$str Favoriten...';
+  }
+
+  @override
+  String contacts_searchUsers(int number, String str) {
+    return 'Suche $number$str Benutzer...';
+  }
+
+  @override
+  String contacts_searchRepeaters(int number, String str) {
+    return 'Suche $number$str Repeater...';
+  }
+
+  @override
+  String contacts_searchRoomServers(int number, String str) {
+    return 'Suche $number$str Raumserver...';
+  }
 
   @override
   String get contacts_noUnreadContacts => 'Keine ungesehene Kontakte';
@@ -721,27 +872,27 @@ class AppLocalizationsDe extends AppLocalizations {
   String get contacts_noMembers => 'Keine Mitglieder';
 
   @override
-  String get contacts_lastSeenNow => 'gerade gesehen';
+  String get contacts_lastSeenNow => 'kürzlich';
 
   @override
   String contacts_lastSeenMinsAgo(int minutes) {
-    return 'Letzte Sichtung vor $minutes Minuten.';
+    return '~ $minutes Min.';
   }
 
   @override
-  String get contacts_lastSeenHourAgo => 'Letzte Sichtung vor 1 Stunde.';
+  String get contacts_lastSeenHourAgo => '~ 1 Std.';
 
   @override
   String contacts_lastSeenHoursAgo(int hours) {
-    return 'Letzte Sichtung vor $hours Stunden.';
+    return '~ $hours Std.';
   }
 
   @override
-  String get contacts_lastSeenDayAgo => 'Letzte Sichtung vor 1 Tag';
+  String get contacts_lastSeenDayAgo => '~ 1 Tag';
 
   @override
   String contacts_lastSeenDaysAgo(int days) {
-    return 'Letzte Sichtung $days Tage zuvor';
+    return '~ $days Tage';
   }
 
   @override
@@ -782,6 +933,12 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get channels_editChannel => 'Kanal bearbeiten';
 
+  @override
+  String get channels_muteChannel => 'Kanal stummschalten';
+
+  @override
+  String get channels_unmuteChannel => 'Kanal Stummschaltung aufheben';
+
   @override
   String get channels_deleteChannel => 'Lösche den Kanal';
 
@@ -790,6 +947,11 @@ class AppLocalizationsDe extends AppLocalizations {
     return 'Löschen von \"$name\"? Dies kann nicht rückgängig gemacht werden.';
   }
 
+  @override
+  String channels_channelDeleteFailed(String name) {
+    return 'Kanal $name konnte nicht gelöscht werden';
+  }
+
   @override
   String channels_channelDeleted(String name) {
     return 'Kanal \"$name\" gelöscht';
@@ -1080,6 +1242,9 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get chat_pathManagement => 'Pfadverwaltung';
 
+  @override
+  String get chat_ShowAllPaths => 'Alle Pfade anzeigen';
+
   @override
   String get chat_routingMode => 'Routenmodus';
 
@@ -1239,6 +1404,12 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get map_title => 'Karte';
 
+  @override
+  String get map_lineOfSight => 'Sichtlinie';
+
+  @override
+  String get map_losScreenTitle => 'Sichtlinie';
+
   @override
   String get map_noNodesWithLocation => 'Keine Knoten mit Standortdaten';
 
@@ -1356,6 +1527,13 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get map_showSharedMarkers => 'Zeige gemeinsam genutzte Marker';
 
+  @override
+  String get map_showGuessedLocations =>
+      'Zeige die vermuteten Knotenpositionen';
+
+  @override
+  String get map_guessedLocation => 'Geschätzter Ort';
+
   @override
   String get map_lastSeenTime => 'Letzte Sichtung';
 
@@ -1676,10 +1854,10 @@ class AppLocalizationsDe extends AppLocalizations {
   String get repeater_cliSubtitle => 'Sende Befehle an den Repeater';
 
   @override
-  String get repeater_neighbours => 'Nachbarn';
+  String get repeater_neighbors => 'Nachbarn';
 
   @override
-  String get repeater_neighboursSubtitle => 'Anzahl der Hop-Nachbarn anzeigen.';
+  String get repeater_neighborsSubtitle => 'Anzahl der Hop-Nachbarn anzeigen.';
 
   @override
   String get repeater_settings => 'Einstellungen';
@@ -2382,7 +2560,7 @@ class AppLocalizationsDe extends AppLocalizations {
   }
 
   @override
-  String get neighbors_repeatersNeighbours => 'Nachbarn';
+  String get neighbors_repeatersNeighbors => 'Nachbarn';
 
   @override
   String get neighbors_noData => 'Keine Nachbarsdaten verfügbar.';
@@ -2692,6 +2870,15 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get listFilter_all => 'Alle';
 
+  @override
+  String get listFilter_favorites => 'Favoriten';
+
+  @override
+  String get listFilter_addToFavorites => 'Zu Favoriten hinzufügen';
+
+  @override
+  String get listFilter_removeFromFavorites => 'Aus Favoriten entfernen';
+
   @override
   String get listFilter_users => 'Benutzer';
 
@@ -2726,6 +2913,145 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get pathTrace_clearTooltip => 'Pfad löschen';
 
+  @override
+  String get losSelectStartEnd =>
+      'Wählen Sie Start- und Endknoten für LOS aus.';
+
+  @override
+  String losRunFailed(String error) {
+    return 'Sichtlinienprüfung fehlgeschlagen: $error';
+  }
+
+  @override
+  String get losClearAllPoints => 'Löschen Sie alle Punkte';
+
+  @override
+  String get losRunToViewElevationProfile =>
+      'Führen Sie LOS aus, um das Höhenprofil anzuzeigen';
+
+  @override
+  String get losMenuTitle => 'LOS-Menü';
+
+  @override
+  String get losMenuSubtitle =>
+      'Tippen Sie auf Knoten oder drücken Sie lange auf die Karte, um benutzerdefinierte Punkte anzuzeigen';
+
+  @override
+  String get losShowDisplayNodes => 'Anzeigeknoten anzeigen';
+
+  @override
+  String get losCustomPoints => 'Benutzerdefinierte Punkte';
+
+  @override
+  String losCustomPointLabel(int index) {
+    return 'Benutzerdefiniert $index';
+  }
+
+  @override
+  String get losPointA => 'Punkt A';
+
+  @override
+  String get losPointB => 'Punkt B';
+
+  @override
+  String losAntennaA(String value, String unit) {
+    return 'Antenne A: $value $unit';
+  }
+
+  @override
+  String losAntennaB(String value, String unit) {
+    return 'Antenne B: $value $unit';
+  }
+
+  @override
+  String get losRun => 'Führen Sie LOS aus';
+
+  @override
+  String get losNoElevationData => 'Keine Höhendaten';
+
+  @override
+  String losProfileClear(
+    String distance,
+    String distanceUnit,
+    String clearance,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, freie Sichtlinie, Mindestabstand $clearance $heightUnit';
+  }
+
+  @override
+  String losProfileBlocked(
+    String distance,
+    String distanceUnit,
+    String obstruction,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, blockiert durch $obstruction $heightUnit';
+  }
+
+  @override
+  String get losStatusChecking => 'LOS: Überprüfen...';
+
+  @override
+  String get losStatusNoData => 'LOS: keine Daten';
+
+  @override
+  String losStatusSummary(int clear, int total, int blocked, int unknown) {
+    return 'Sichtlinie: $clear/$total frei, $blocked blockiert, $unknown unbekannt';
+  }
+
+  @override
+  String get losErrorElevationUnavailable =>
+      'Für eine oder mehrere Proben sind keine Höhendaten verfügbar.';
+
+  @override
+  String get losErrorInvalidInput =>
+      'Ungültige Punkte/Höhendaten für die LOS-Berechnung.';
+
+  @override
+  String get losRenameCustomPoint =>
+      'Benennen Sie den benutzerdefinierten Punkt um';
+
+  @override
+  String get losPointName => 'Punktname';
+
+  @override
+  String get losShowPanelTooltip => 'LOS-Panel anzeigen';
+
+  @override
+  String get losHidePanelTooltip => 'LOS-Panel ausblenden';
+
+  @override
+  String get losElevationAttribution => 'Höhendaten: Open-Meteo (CC BY 4.0)';
+
+  @override
+  String get losLegendRadioHorizon => 'Funkhorizont';
+
+  @override
+  String get losLegendLosBeam => 'Sichtlinie';
+
+  @override
+  String get losLegendTerrain => 'Gelände';
+
+  @override
+  String get losFrequencyLabel => 'Frequenz';
+
+  @override
+  String get losFrequencyInfoTooltip => 'Details zur Berechnung anzeigen';
+
+  @override
+  String get losFrequencyDialogTitle => 'Berechnung des Funkhorizonts';
+
+  @override
+  String losFrequencyDialogDescription(
+    double baselineK,
+    double baselineFreq,
+    double frequencyMHz,
+    double kFactor,
+  ) {
+    return 'Ausgehend von k=$baselineK bei $baselineFreq MHz passt die Berechnung den k-Faktor für das aktuelle $frequencyMHz MHz-Band an, das die gekrümmte Funkhorizontobergrenze definiert.';
+  }
+
   @override
   String get contacts_pathTrace => 'Pfadverfolgung';
 
@@ -2898,4 +3224,90 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get settings_gpxExportShareSubject =>
       'GPX-Kartendaten aus meshcore-open exportieren';
+
+  @override
+  String get snrIndicator_nearByRepeaters => 'In der Nähe befindliche Repeater';
+
+  @override
+  String get snrIndicator_lastSeen => 'Zuletzt gesehen';
+
+  @override
+  String get contactsSettings_title => 'Kontakteinstellungen';
+
+  @override
+  String get contactsSettings_autoAddTitle => 'Automatische Erkennung';
+
+  @override
+  String get contactsSettings_otherTitle =>
+      'Weitere Einstellungen zu Kontakten';
+
+  @override
+  String get contactsSettings_autoAddUsersTitle =>
+      'Automatische Hinzufügung von Benutzern';
+
+  @override
+  String get contactsSettings_autoAddUsersSubtitle =>
+      'Ermöglichen Sie dem Begleiter, automatisch entdeckte Benutzer hinzuzufügen';
+
+  @override
+  String get contactsSettings_autoAddRepeatersTitle =>
+      'Automatisch Repeater hinzufügen';
+
+  @override
+  String get contactsSettings_autoAddRepeatersSubtitle =>
+      'Ermöglichen Sie dem Begleiter, automatisch entdeckte Repeater hinzuzufügen.';
+
+  @override
+  String get contactsSettings_autoAddRoomServersTitle =>
+      'Automatisch Raumservers hinzufügen';
+
+  @override
+  String get contactsSettings_autoAddRoomServersSubtitle =>
+      'Ermöglichen Sie dem Begleiter, entdeckte Raumserver automatisch hinzuzufügen';
+
+  @override
+  String get contactsSettings_autoAddSensorsTitle =>
+      'Automatisch Sensoren hinzufügen';
+
+  @override
+  String get contactsSettings_autoAddSensorsSubtitle =>
+      'Ermöglichen Sie dem Begleiter, automatisch entdeckte Sensoren hinzuzufügen';
+
+  @override
+  String get contactsSettings_overwriteOldestTitle =>
+      'Überschreiben des Ältesten';
+
+  @override
+  String get contactsSettings_overwriteOldestSubtitle =>
+      'Wenn die Kontaktliste voll ist, wird der älteste nicht favorisierte Kontakt ersetzt.';
+
+  @override
+  String get discoveredContacts_Title => 'Entdeckte Kontakte';
+
+  @override
+  String get discoveredContacts_noMatching => 'Keine passenden Kontakte';
+
+  @override
+  String get discoveredContacts_searchHint => 'Entdeckte Kontakte suchen';
+
+  @override
+  String get discoveredContacts_contactAdded => 'Kontakt hinzugefügt';
+
+  @override
+  String get discoveredContacts_addContact => 'Kontakt hinzufügen';
+
+  @override
+  String get discoveredContacts_copyContact =>
+      'Kontakt in die Zwischenablage kopieren';
+
+  @override
+  String get discoveredContacts_deleteContact => 'Kontakt löschen';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Alle entdeckten Kontakte löschen';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Sind Sie sicher, dass Sie alle gefundenen Kontakte löschen möchten?';
 }

lib/l10n/app_localizations_en.dart

@@ -38,6 +38,9 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get common_delete => 'Delete';
 
+  @override
+  String get common_deleteAll => 'Delete All';
+
   @override
   String get common_close => 'Close';
 
@@ -108,6 +111,88 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get scanner_title => 'MeshCore Open';
 
+  @override
+  String get connectionChoiceUsbLabel => 'USB';
+
+  @override
+  String get connectionChoiceBluetoothLabel => 'Bluetooth';
+
+  @override
+  String get usbScreenTitle => 'Connect over USB';
+
+  @override
+  String get usbScreenSubtitle =>
+      'Choose a detected serial device and connect directly to your MeshCore node.';
+
+  @override
+  String get usbScreenStatus => 'Select a USB device';
+
+  @override
+  String get usbScreenNote =>
+      'USB serial is active on supported Android devices and desktop platforms.';
+
+  @override
+  String get usbScreenEmptyState =>
+      'No USB devices found. Plug one in and refresh.';
+
+  @override
+  String get usbErrorPermissionDenied => 'USB permission was denied.';
+
+  @override
+  String get usbErrorDeviceMissing =>
+      'The selected USB device is no longer available.';
+
+  @override
+  String get usbErrorInvalidPort => 'Select a valid USB device.';
+
+  @override
+  String get usbErrorBusy =>
+      'Another USB connection request is already in progress.';
+
+  @override
+  String get usbErrorNotConnected => 'No USB device is connected.';
+
+  @override
+  String get usbErrorOpenFailed => 'Failed to open the selected USB device.';
+
+  @override
+  String get usbErrorConnectFailed =>
+      'Failed to connect to the selected USB device.';
+
+  @override
+  String get usbErrorUnsupported =>
+      'USB serial is not supported on this platform.';
+
+  @override
+  String get usbErrorAlreadyActive => 'A USB connection is already active.';
+
+  @override
+  String get usbErrorNoDeviceSelected => 'No USB device was selected.';
+
+  @override
+  String get usbErrorPortClosed => 'The USB connection is not open.';
+
+  @override
+  String get usbErrorConnectTimedOut =>
+      'Connection timed out. Make sure the device has USB Companion firmware.';
+
+  @override
+  String get usbFallbackDeviceName => 'Web Serial Device';
+
+  @override
+  String get usbStatus_notConnected => 'Select a USB device';
+
+  @override
+  String get usbStatus_connecting => 'Connecting to USB device...';
+
+  @override
+  String get usbStatus_searching => 'Searching for USB devices...';
+
+  @override
+  String usbConnectionFailed(String error) {
+    return 'USB connection failed: $error';
+  }
+
   @override
   String get scanner_scanning => 'Scanning for devices...';
 
@@ -149,6 +234,13 @@ class AppLocalizationsEn extends AppLocalizations {
   String get scanner_bluetoothOffMessage =>
       'Please turn on Bluetooth to scan for devices';
 
+  @override
+  String get scanner_chromeRequired => 'Chrome Browser Required';
+
+  @override
+  String get scanner_chromeRequiredMessage =>
+      'This web application requires Google Chrome or a Chromium-based browser for Bluetooth support.';
+
   @override
   String get scanner_enableBluetooth => 'Enable Bluetooth';
 
@@ -232,6 +324,13 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get settings_longitude => 'Longitude';
 
+  @override
+  String get settings_contactSettings => 'Contact Settings';
+
+  @override
+  String get settings_contactSettingsSubtitle =>
+      'Settings for how contacts are added.';
+
   @override
   String get settings_privacyMode => 'Privacy Mode';
 
@@ -318,6 +417,10 @@ class AppLocalizationsEn extends AppLocalizations {
   String get settings_aboutDescription =>
       'An open-source Flutter client for MeshCore LoRa mesh networking devices.';
 
+  @override
+  String get settings_aboutOpenMeteoAttribution =>
+      'LOS elevation data: Open-Meteo (CC BY 4.0)';
+
   @override
   String get settings_infoName => 'Name';
 
@@ -454,6 +557,13 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get appSettings_languageUk => 'Українська';
 
+  @override
+  String get appSettings_enableMessageTracing => 'Enable Message Tracing';
+
+  @override
+  String get appSettings_enableMessageTracingSubtitle =>
+      'Show detailed routing and timing metadata for messages';
+
   @override
   String get appSettings_notifications => 'Notifications';
 
@@ -614,6 +724,15 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get appSettings_offlineMapCache => 'Offline Map Cache';
 
+  @override
+  String get appSettings_unitsTitle => 'Units';
+
+  @override
+  String get appSettings_unitsMetric => 'Metric (m / km)';
+
+  @override
+  String get appSettings_unitsImperial => 'Imperial (ft / mi)';
+
   @override
   String get appSettings_noAreaSelected => 'No area selected';
 
@@ -650,7 +769,35 @@ class AppLocalizationsEn extends AppLocalizations {
       'Contacts will appear when devices advertise';
 
   @override
-  String get contacts_searchContacts => 'Search contacts...';
+  String get contacts_unread => 'Unread';
+
+  @override
+  String get contacts_searchContactsNoNumber => 'Search Contacts...';
+
+  @override
+  String contacts_searchContacts(int number, String str) {
+    return 'Search $number$str Contacts...';
+  }
+
+  @override
+  String contacts_searchFavorites(int number, String str) {
+    return 'Search $number$str Favorites...';
+  }
+
+  @override
+  String contacts_searchUsers(int number, String str) {
+    return 'Search $number$str Users...';
+  }
+
+  @override
+  String contacts_searchRepeaters(int number, String str) {
+    return 'Search $number$str Repeaters...';
+  }
+
+  @override
+  String contacts_searchRoomServers(int number, String str) {
+    return 'Search $number$str Room servers...';
+  }
 
   @override
   String get contacts_noUnreadContacts => 'No unread contacts';
@@ -713,27 +860,27 @@ class AppLocalizationsEn extends AppLocalizations {
   String get contacts_noMembers => 'No members';
 
   @override
-  String get contacts_lastSeenNow => 'Last seen now';
+  String get contacts_lastSeenNow => 'recently';
 
   @override
   String contacts_lastSeenMinsAgo(int minutes) {
-    return 'Last seen $minutes mins ago';
+    return '~ $minutes min.';
   }
 
   @override
-  String get contacts_lastSeenHourAgo => 'Last seen 1 hour ago';
+  String get contacts_lastSeenHourAgo => '~ 1 hour';
 
   @override
   String contacts_lastSeenHoursAgo(int hours) {
-    return 'Last seen $hours hours ago';
+    return '~ $hours hours';
   }
 
   @override
-  String get contacts_lastSeenDayAgo => 'Last seen 1 day ago';
+  String get contacts_lastSeenDayAgo => '~ 1 day';
 
   @override
   String contacts_lastSeenDaysAgo(int days) {
-    return 'Last seen $days days ago';
+    return '~ $days days';
   }
 
   @override
@@ -774,6 +921,12 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get channels_editChannel => 'Edit channel';
 
+  @override
+  String get channels_muteChannel => 'Mute channel';
+
+  @override
+  String get channels_unmuteChannel => 'Unmute channel';
+
   @override
   String get channels_deleteChannel => 'Delete channel';
 
@@ -782,6 +935,11 @@ class AppLocalizationsEn extends AppLocalizations {
     return 'Delete \"$name\"? This cannot be undone.';
   }
 
+  @override
+  String channels_channelDeleteFailed(String name) {
+    return 'Failed to delete channel \"$name\"';
+  }
+
   @override
   String channels_channelDeleted(String name) {
     return 'Channel \"$name\" deleted';
@@ -1065,6 +1223,9 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get chat_pathManagement => 'Path Management';
 
+  @override
+  String get chat_ShowAllPaths => 'Show all paths';
+
   @override
   String get chat_routingMode => 'Routing mode';
 
@@ -1219,6 +1380,12 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get map_title => 'Node Map';
 
+  @override
+  String get map_lineOfSight => 'Line of Sight';
+
+  @override
+  String get map_losScreenTitle => 'Line of Sight';
+
   @override
   String get map_noNodesWithLocation => 'No nodes with location data';
 
@@ -1336,6 +1503,12 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get map_showSharedMarkers => 'Show shared markers';
 
+  @override
+  String get map_showGuessedLocations => 'Show guessed node locations';
+
+  @override
+  String get map_guessedLocation => 'Guessed location';
+
   @override
   String get map_lastSeenTime => 'Last Seen Time';
 
@@ -1650,10 +1823,10 @@ class AppLocalizationsEn extends AppLocalizations {
   String get repeater_cliSubtitle => 'Send commands to the repeater';
 
   @override
-  String get repeater_neighbours => 'Neighbors';
+  String get repeater_neighbors => 'Neighbors';
 
   @override
-  String get repeater_neighboursSubtitle => 'View zero hop neighbors.';
+  String get repeater_neighborsSubtitle => 'View zero hop neighbors.';
 
   @override
   String get repeater_settings => 'Settings';
@@ -2329,10 +2502,10 @@ class AppLocalizationsEn extends AppLocalizations {
   }
 
   @override
-  String get neighbors_receivedData => 'Received Neighbours Data';
+  String get neighbors_receivedData => 'Received Neighbors Data';
 
   @override
-  String get neighbors_requestTimedOut => 'Neighbours request timed out.';
+  String get neighbors_requestTimedOut => 'Neighbors request timed out.';
 
   @override
   String neighbors_errorLoading(String error) {
@@ -2340,10 +2513,10 @@ class AppLocalizationsEn extends AppLocalizations {
   }
 
   @override
-  String get neighbors_repeatersNeighbours => 'Repeaters Neighbours';
+  String get neighbors_repeatersNeighbors => 'Repeaters Neighbors';
 
   @override
-  String get neighbors_noData => 'No neighbours data available.';
+  String get neighbors_noData => 'No neighbors data available.';
 
   @override
   String neighbors_unknownContact(String pubkey) {
@@ -2646,6 +2819,15 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get listFilter_all => 'All';
 
+  @override
+  String get listFilter_favorites => 'Favorites';
+
+  @override
+  String get listFilter_addToFavorites => 'Add to favorites';
+
+  @override
+  String get listFilter_removeFromFavorites => 'Remove from favorites';
+
   @override
   String get listFilter_users => 'Users';
 
@@ -2680,6 +2862,143 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get pathTrace_clearTooltip => 'Clear path.';
 
+  @override
+  String get losSelectStartEnd => 'Select start and end nodes for LOS.';
+
+  @override
+  String losRunFailed(String error) {
+    return 'Line-of-sight check failed: $error';
+  }
+
+  @override
+  String get losClearAllPoints => 'Clear all points';
+
+  @override
+  String get losRunToViewElevationProfile =>
+      'Run LOS to view elevation profile';
+
+  @override
+  String get losMenuTitle => 'LOS Menu';
+
+  @override
+  String get losMenuSubtitle => 'Tap nodes or long-press map for custom points';
+
+  @override
+  String get losShowDisplayNodes => 'Show display nodes';
+
+  @override
+  String get losCustomPoints => 'Custom points';
+
+  @override
+  String losCustomPointLabel(int index) {
+    return 'Custom $index';
+  }
+
+  @override
+  String get losPointA => 'Point A';
+
+  @override
+  String get losPointB => 'Point B';
+
+  @override
+  String losAntennaA(String value, String unit) {
+    return 'Antenna A: $value $unit';
+  }
+
+  @override
+  String losAntennaB(String value, String unit) {
+    return 'Antenna B: $value $unit';
+  }
+
+  @override
+  String get losRun => 'Run LOS';
+
+  @override
+  String get losNoElevationData => 'No elevation data';
+
+  @override
+  String losProfileClear(
+    String distance,
+    String distanceUnit,
+    String clearance,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, clear LOS, min clearance $clearance $heightUnit';
+  }
+
+  @override
+  String losProfileBlocked(
+    String distance,
+    String distanceUnit,
+    String obstruction,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, blocked by $obstruction $heightUnit';
+  }
+
+  @override
+  String get losStatusChecking => 'LOS: checking...';
+
+  @override
+  String get losStatusNoData => 'LOS: no data';
+
+  @override
+  String losStatusSummary(int clear, int total, int blocked, int unknown) {
+    return 'LOS: $clear/$total clear, $blocked blocked, $unknown unknown';
+  }
+
+  @override
+  String get losErrorElevationUnavailable =>
+      'Elevation data unavailable for one or more samples.';
+
+  @override
+  String get losErrorInvalidInput =>
+      'Invalid points/elevation data for LOS calculation.';
+
+  @override
+  String get losRenameCustomPoint => 'Rename custom point';
+
+  @override
+  String get losPointName => 'Point name';
+
+  @override
+  String get losShowPanelTooltip => 'Show LOS panel';
+
+  @override
+  String get losHidePanelTooltip => 'Hide LOS panel';
+
+  @override
+  String get losElevationAttribution =>
+      'Elevation data: Open-Meteo (CC BY 4.0)';
+
+  @override
+  String get losLegendRadioHorizon => 'Radio horizon';
+
+  @override
+  String get losLegendLosBeam => 'LOS beam';
+
+  @override
+  String get losLegendTerrain => 'Terrain';
+
+  @override
+  String get losFrequencyLabel => 'Frequency';
+
+  @override
+  String get losFrequencyInfoTooltip => 'View calculation details';
+
+  @override
+  String get losFrequencyDialogTitle => 'Radio horizon calculation';
+
+  @override
+  String losFrequencyDialogDescription(
+    double baselineK,
+    double baselineFreq,
+    double frequencyMHz,
+    double kFactor,
+  ) {
+    return 'Starting from k=$baselineK at $baselineFreq MHz, the calculation adjusts the k-factor for the current $frequencyMHz MHz band, which defines the curved radio horizon cap.';
+  }
+
   @override
   String get contacts_pathTrace => 'Path Trace';
 
@@ -2845,4 +3164,84 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get settings_gpxExportShareSubject =>
       'meshcore-open GPX map data export';
+
+  @override
+  String get snrIndicator_nearByRepeaters => 'Nearby Repeaters';
+
+  @override
+  String get snrIndicator_lastSeen => 'Last seen';
+
+  @override
+  String get contactsSettings_title => 'Contacts settings';
+
+  @override
+  String get contactsSettings_autoAddTitle => 'Automatic Discovery';
+
+  @override
+  String get contactsSettings_otherTitle => 'Other contact related settings';
+
+  @override
+  String get contactsSettings_autoAddUsersTitle => 'Auto-add users';
+
+  @override
+  String get contactsSettings_autoAddUsersSubtitle =>
+      'Allow the companion to automatically add discovered users.';
+
+  @override
+  String get contactsSettings_autoAddRepeatersTitle => 'Auto-add repeaters';
+
+  @override
+  String get contactsSettings_autoAddRepeatersSubtitle =>
+      'Allow the companion to automatically add discovered repeaters.';
+
+  @override
+  String get contactsSettings_autoAddRoomServersTitle =>
+      'Auto-add room servers';
+
+  @override
+  String get contactsSettings_autoAddRoomServersSubtitle =>
+      'Allow the companion to automatically add discovered room servers.';
+
+  @override
+  String get contactsSettings_autoAddSensorsTitle => 'Auto-add sensors';
+
+  @override
+  String get contactsSettings_autoAddSensorsSubtitle =>
+      'Allow the companion to automatically add discovered sensors.';
+
+  @override
+  String get contactsSettings_overwriteOldestTitle => 'Overwrite Oldest';
+
+  @override
+  String get contactsSettings_overwriteOldestSubtitle =>
+      'When the contact list is full, the oldest non-favorited contact will be replaced.';
+
+  @override
+  String get discoveredContacts_Title => 'Discovered Contacts';
+
+  @override
+  String get discoveredContacts_noMatching => 'No matching contacts';
+
+  @override
+  String get discoveredContacts_searchHint => 'Search discovered contacts';
+
+  @override
+  String get discoveredContacts_contactAdded => 'Contact added';
+
+  @override
+  String get discoveredContacts_addContact => 'Add Contact';
+
+  @override
+  String get discoveredContacts_copyContact => 'Copy Contact to clipboard';
+
+  @override
+  String get discoveredContacts_deleteContact => 'Delete Discovered Contact';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Delete All Discovered Contacts';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Are you sure you want to delete all discovered contacts?';
 }

lib/l10n/app_localizations_es.dart

@@ -38,6 +38,9 @@ class AppLocalizationsEs extends AppLocalizations {
   @override
   String get common_delete => 'Eliminar';
 
+  @override
+  String get common_deleteAll => 'Eliminar todo';
+
   @override
   String get common_close => 'Cerrar';
 
@@ -108,6 +111,91 @@ class AppLocalizationsEs extends AppLocalizations {
   @override
   String get scanner_title => 'MeshCore Open';
 
+  @override
+  String get connectionChoiceUsbLabel => 'USB';
+
+  @override
+  String get connectionChoiceBluetoothLabel => 'Bluetooth';
+
+  @override
+  String get usbScreenTitle => 'Conecte mediante USB';
+
+  @override
+  String get usbScreenSubtitle =>
+      'Seleccione el dispositivo de serie detectado y conéctelo directamente a su nodo MeshCore.';
+
+  @override
+  String get usbScreenStatus => 'Seleccione un dispositivo USB';
+
+  @override
+  String get usbScreenNote =>
+      'La comunicación serial a través de USB está activa en dispositivos Android compatibles y en plataformas de escritorio.';
+
+  @override
+  String get usbScreenEmptyState =>
+      'No se encontraron dispositivos USB. Conecte uno y vuelva a intentar.';
+
+  @override
+  String get usbErrorPermissionDenied =>
+      'Se denegó el permiso de acceso a través de USB.';
+
+  @override
+  String get usbErrorDeviceMissing =>
+      'El dispositivo USB seleccionado ya no está disponible.';
+
+  @override
+  String get usbErrorInvalidPort => 'Seleccione un dispositivo USB válido.';
+
+  @override
+  String get usbErrorBusy =>
+      'Ya se ha iniciado una solicitud de conexión USB adicional.';
+
+  @override
+  String get usbErrorNotConnected => 'No hay ningún dispositivo USB conectado.';
+
+  @override
+  String get usbErrorOpenFailed =>
+      'No se pudo abrir el dispositivo USB seleccionado.';
+
+  @override
+  String get usbErrorConnectFailed =>
+      'No se pudo conectar con el dispositivo USB seleccionado.';
+
+  @override
+  String get usbErrorUnsupported =>
+      'La comunicación serial a través de USB no está soportada en esta plataforma.';
+
+  @override
+  String get usbErrorAlreadyActive => 'La conexión USB ya está activa.';
+
+  @override
+  String get usbErrorNoDeviceSelected =>
+      'No se ha seleccionado ningún dispositivo USB.';
+
+  @override
+  String get usbErrorPortClosed => 'La conexión USB no está activa.';
+
+  @override
+  String get usbErrorConnectTimedOut =>
+      'La conexión ha caducado. Asegúrese de que el dispositivo tenga el firmware USB Companion.';
+
+  @override
+  String get usbFallbackDeviceName => 'Dispositivo de serie web';
+
+  @override
+  String get usbStatus_notConnected => 'Seleccione un dispositivo USB';
+
+  @override
+  String get usbStatus_connecting => 'Conectándose al dispositivo USB...';
+
+  @override
+  String get usbStatus_searching => 'Buscando dispositivos USB...';
+
+  @override
+  String usbConnectionFailed(String error) {
+    return 'Error al conectar mediante USB: $error';
+  }
+
   @override
   String get scanner_scanning => 'Escaneando dispositivos...';
 
@@ -150,6 +238,13 @@ class AppLocalizationsEs extends AppLocalizations {
   String get scanner_bluetoothOffMessage =>
       'Por favor, active el Bluetooth para escanear dispositivos.';
 
+  @override
+  String get scanner_chromeRequired => 'Navegador Chrome requerido';
+
+  @override
+  String get scanner_chromeRequiredMessage =>
+      'Esta aplicación web requiere Google Chrome o un navegador basado en Chromium para el soporte de Bluetooth.';
+
   @override
   String get scanner_enableBluetooth => 'Habilitar Bluetooth';
 
@@ -233,6 +328,13 @@ class AppLocalizationsEs extends AppLocalizations {
   @override
   String get settings_longitude => 'Longitud';
 
+  @override
+  String get settings_contactSettings => 'Configuración de contacto';
+
+  @override
+  String get settings_contactSettingsSubtitle =>
+      'Configuración de cómo se agregan los contactos.';
+
   @override
   String get settings_privacyMode => 'Modo Privacidad';
 
@@ -323,6 +425,10 @@ class AppLocalizationsEs extends AppLocalizations {
   String get settings_aboutDescription =>
       'Un cliente de código abierto de Flutter para dispositivos de red mesh LoRa de MeshCore.';
 
+  @override
+  String get settings_aboutOpenMeteoAttribution =>
+      'Datos de elevación LOS: Open-Meteo (CC BY 4.0)';
+
   @override
   String get settings_infoName => 'Nombre';
 
@@ -459,6 +565,14 @@ class AppLocalizationsEs extends AppLocalizations {
   @override
   String get appSettings_languageUk => 'Ucraniano';
 
+  @override
+  String get appSettings_enableMessageTracing =>
+      'Habilitar seguimiento de mensajes';
+
+  @override
+  String get appSettings_enableMessageTracingSubtitle =>
+      'Mostrar metadatos detallados de enrutamiento y tiempo para los mensajes';
+
   @override
   String get appSettings_notifications => 'Notificaciones';
 
@@ -620,6 +734,15 @@ class AppLocalizationsEs extends AppLocalizations {
   @override
   String get appSettings_offlineMapCache => 'Caché de Mapa Offline';
 
+  @override
+  String get appSettings_unitsTitle => 'Unidades';
+
+  @override
+  String get appSettings_unitsMetric => 'Métrico (m/km)';
+
+  @override
+  String get appSettings_unitsImperial => 'Imperial (pies/millas)';
+
   @override
   String get appSettings_noAreaSelected => 'No se ha seleccionado ningún área';
 
@@ -657,7 +780,35 @@ class AppLocalizationsEs extends AppLocalizations {
       'Los contactos aparecerán cuando los dispositivos anuncien.';
 
   @override
-  String get contacts_searchContacts => 'Buscar contactos...';
+  String get contacts_unread => 'No leído';
+
+  @override
+  String get contacts_searchContactsNoNumber => 'Buscar contactos...';
+
+  @override
+  String contacts_searchContacts(int number, String str) {
+    return 'Buscar contactos...';
+  }
+
+  @override
+  String contacts_searchFavorites(int number, String str) {
+    return 'Buscar $number$str Favoritos...';
+  }
+
+  @override
+  String contacts_searchUsers(int number, String str) {
+    return 'Buscar $number$str Usuarios...';
+  }
+
+  @override
+  String contacts_searchRepeaters(int number, String str) {
+    return 'Buscar $number$str Repetidores...';
+  }
+
+  @override
+  String contacts_searchRoomServers(int number, String str) {
+    return 'Buscar $number$str servidores de sala...';
+  }
 
   @override
   String get contacts_noUnreadContacts => 'No contactos sin leer';
@@ -726,23 +877,23 @@ class AppLocalizationsEs extends AppLocalizations {
 
   @override
   String contacts_lastSeenMinsAgo(int minutes) {
-    return 'Última vez visto hace $minutes minutos.';
+    return '~ $minutes min.';
   }
 
   @override
-  String get contacts_lastSeenHourAgo => 'Última vez que se vio hace 1 hora';
+  String get contacts_lastSeenHourAgo => '~ 1 hora';
 
   @override
   String contacts_lastSeenHoursAgo(int hours) {
-    return 'Última vez visto hace $hours horas.';
+    return '~ $hours horas';
   }
 
   @override
-  String get contacts_lastSeenDayAgo => 'Última vez que se vio hace 1 día';
+  String get contacts_lastSeenDayAgo => '~ 1 día';
 
   @override
   String contacts_lastSeenDaysAgo(int days) {
-    return 'Última vez visto hace $days días.';
+    return '~ $days días';
   }
 
   @override
@@ -783,6 +934,12 @@ class AppLocalizationsEs extends AppLocalizations {
   @override
   String get channels_editChannel => 'Editar canal';
 
+  @override
+  String get channels_muteChannel => 'Silenciar canal';
+
+  @override
+  String get channels_unmuteChannel => 'Activar canal';
+
   @override
   String get channels_deleteChannel => 'Eliminar canal';
 
@@ -791,6 +948,11 @@ class AppLocalizationsEs extends AppLocalizations {
     return 'Eliminar \"$name\"? Esto no se puede deshacer.';
   }
 
+  @override
+  String channels_channelDeleteFailed(String name) {
+    return 'No se pudo eliminar el canal \"$name\"';
+  }
+
   @override
   String channels_channelDeleted(String name) {
     return 'Canal \"$name\" eliminado';
@@ -1079,6 +1241,9 @@ class AppLocalizationsEs extends AppLocalizations {
   @override
   String get chat_pathManagement => 'Gestión de Rutas';
 
+  @override
+  String get chat_ShowAllPaths => 'Mostrar todos los caminos';
+
   @override
   String get chat_routingMode => 'Modo de enrutamiento';
 
@@ -1237,6 +1402,12 @@ class AppLocalizationsEs extends AppLocalizations {
   @override
   String get map_title => 'Mapa de Nodos';
 
+  @override
+  String get map_lineOfSight => 'Línea de visión';
+
+  @override
+  String get map_losScreenTitle => 'Línea de visión';
+
   @override
   String get map_noNodesWithLocation => 'No hay nodos con datos de ubicación';
 
@@ -1354,6 +1525,13 @@ class AppLocalizationsEs extends AppLocalizations {
   @override
   String get map_showSharedMarkers => 'Mostrar marcadores compartidos';
 
+  @override
+  String get map_showGuessedLocations =>
+      'Mostrar las ubicaciones estimadas de los nodos.';
+
+  @override
+  String get map_guessedLocation => 'Ubicación estimada';
+
   @override
   String get map_lastSeenTime => 'Última vez que se vio';
 
@@ -1674,10 +1852,10 @@ class AppLocalizationsEs extends AppLocalizations {
   String get repeater_cliSubtitle => 'Enviar comandos al repetidor';
 
   @override
-  String get repeater_neighbours => 'Vecinos';
+  String get repeater_neighbors => 'Vecinos';
 
   @override
-  String get repeater_neighboursSubtitle => 'Ver vecinos de salto cero.';
+  String get repeater_neighborsSubtitle => 'Ver vecinos de salto cero.';
 
   @override
   String get repeater_settings => 'Configuración';
@@ -2376,7 +2554,7 @@ class AppLocalizationsEs extends AppLocalizations {
   }
 
   @override
-  String get neighbors_repeatersNeighbours => 'Repetidores Vecinos';
+  String get neighbors_repeatersNeighbors => 'Repetidores Vecinos';
 
   @override
   String get neighbors_noData => 'No hay datos de vecinos disponibles.';
@@ -2685,6 +2863,15 @@ class AppLocalizationsEs extends AppLocalizations {
   @override
   String get listFilter_all => 'Todas';
 
+  @override
+  String get listFilter_favorites => 'Favoritos';
+
+  @override
+  String get listFilter_addToFavorites => 'Añadir a favoritos';
+
+  @override
+  String get listFilter_removeFromFavorites => 'Eliminar de las favoritas';
+
   @override
   String get listFilter_users => 'Usuarios';
 
@@ -2719,6 +2906,146 @@ class AppLocalizationsEs extends AppLocalizations {
   @override
   String get pathTrace_clearTooltip => 'Borrar ruta';
 
+  @override
+  String get losSelectStartEnd =>
+      'Seleccione los nodos de inicio y fin para LOS.';
+
+  @override
+  String losRunFailed(String error) {
+    return 'Error en la comprobación de la línea de visión: $error';
+  }
+
+  @override
+  String get losClearAllPoints => 'Borrar todos los puntos';
+
+  @override
+  String get losRunToViewElevationProfile =>
+      'Ejecute LOS para ver el perfil de elevación';
+
+  @override
+  String get losMenuTitle => 'Menú LOS';
+
+  @override
+  String get losMenuSubtitle =>
+      'Toque nodos o mantenga presionado el mapa para puntos personalizados';
+
+  @override
+  String get losShowDisplayNodes => 'Mostrar nodos de visualización';
+
+  @override
+  String get losCustomPoints => 'Puntos personalizados';
+
+  @override
+  String losCustomPointLabel(int index) {
+    return 'Personalizado $index';
+  }
+
+  @override
+  String get losPointA => 'Punto A';
+
+  @override
+  String get losPointB => 'Punto B';
+
+  @override
+  String losAntennaA(String value, String unit) {
+    return 'Antena A: $value $unit';
+  }
+
+  @override
+  String losAntennaB(String value, String unit) {
+    return 'Antena B: $value $unit';
+  }
+
+  @override
+  String get losRun => 'Ejecutar LOS';
+
+  @override
+  String get losNoElevationData => 'Sin datos de elevación';
+
+  @override
+  String losProfileClear(
+    String distance,
+    String distanceUnit,
+    String clearance,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, despejar LOS, autorización mínima $clearance $heightUnit';
+  }
+
+  @override
+  String losProfileBlocked(
+    String distance,
+    String distanceUnit,
+    String obstruction,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, bloqueado por $obstruction $heightUnit';
+  }
+
+  @override
+  String get losStatusChecking => 'LOS: comprobando...';
+
+  @override
+  String get losStatusNoData => 'LOS: sin datos';
+
+  @override
+  String losStatusSummary(int clear, int total, int blocked, int unknown) {
+    return 'LOS: $clear/$total claro, $blocked bloqueado, $unknown desconocido';
+  }
+
+  @override
+  String get losErrorElevationUnavailable =>
+      'Datos de elevación no disponibles para una o más muestras.';
+
+  @override
+  String get losErrorInvalidInput =>
+      'Datos de puntos/elevación no válidos para el cálculo de LOS.';
+
+  @override
+  String get losRenameCustomPoint =>
+      'Cambiar el nombre del punto personalizado';
+
+  @override
+  String get losPointName => 'Nombre del punto';
+
+  @override
+  String get losShowPanelTooltip => 'Mostrar panel LOS';
+
+  @override
+  String get losHidePanelTooltip => 'Ocultar panel LOS';
+
+  @override
+  String get losElevationAttribution =>
+      'Datos de elevación: Open-Meteo (CC BY 4.0)';
+
+  @override
+  String get losLegendRadioHorizon => 'Horizonte radioeléctrico';
+
+  @override
+  String get losLegendLosBeam => 'Línea de visión';
+
+  @override
+  String get losLegendTerrain => 'Terreno';
+
+  @override
+  String get losFrequencyLabel => 'Frecuencia';
+
+  @override
+  String get losFrequencyInfoTooltip => 'Ver detalles del cálculo';
+
+  @override
+  String get losFrequencyDialogTitle => 'Cálculo del horizonte radioeléctrico';
+
+  @override
+  String losFrequencyDialogDescription(
+    double baselineK,
+    double baselineFreq,
+    double frequencyMHz,
+    double kFactor,
+  ) {
+    return 'A partir de k=$baselineK en $baselineFreq MHz, el cálculo ajusta el factor k para la banda actual de $frequencyMHz MHz, que define el límite curvo del horizonte de radio.';
+  }
+
   @override
   String get contacts_pathTrace => 'Rastreo de caminos';
 
@@ -2889,4 +3216,91 @@ class AppLocalizationsEs extends AppLocalizations {
   @override
   String get settings_gpxExportShareSubject =>
       'meshcore-open exportación de datos de mapa GPX';
+
+  @override
+  String get snrIndicator_nearByRepeaters => 'Repetidores cercanos';
+
+  @override
+  String get snrIndicator_lastSeen => 'Visto por última vez';
+
+  @override
+  String get contactsSettings_title => 'Configuración de contactos';
+
+  @override
+  String get contactsSettings_autoAddTitle => 'Detección automática';
+
+  @override
+  String get contactsSettings_otherTitle =>
+      'Otras configuraciones relacionadas con el contacto';
+
+  @override
+  String get contactsSettings_autoAddUsersTitle =>
+      'Agregar usuarios automáticamente';
+
+  @override
+  String get contactsSettings_autoAddUsersSubtitle =>
+      'Permitir que el compañero agregue automáticamente a los usuarios descubiertos.';
+
+  @override
+  String get contactsSettings_autoAddRepeatersTitle =>
+      'Agregar repetidores automáticamente';
+
+  @override
+  String get contactsSettings_autoAddRepeatersSubtitle =>
+      'Permitir que el compañero agregue automáticamente los repetidores descubiertos.';
+
+  @override
+  String get contactsSettings_autoAddRoomServersTitle =>
+      'Agregar automáticamente servidores de sala';
+
+  @override
+  String get contactsSettings_autoAddRoomServersSubtitle =>
+      'Permitir que el compañero agregue automáticamente los servidores de salas descubiertos.';
+
+  @override
+  String get contactsSettings_autoAddSensorsTitle =>
+      'Agregar sensores automáticamente';
+
+  @override
+  String get contactsSettings_autoAddSensorsSubtitle =>
+      'Permitir que el compañero agregue automáticamente los sensores descubiertos.';
+
+  @override
+  String get contactsSettings_overwriteOldestTitle =>
+      'Sobreescribir el más antiguo';
+
+  @override
+  String get contactsSettings_overwriteOldestSubtitle =>
+      'Cuando la lista de contactos esté llena, se reemplazará el contacto no favorito más antiguo.';
+
+  @override
+  String get discoveredContacts_Title => 'Contactos descubiertos';
+
+  @override
+  String get discoveredContacts_noMatching =>
+      'No se encontraron contactos coincidentes';
+
+  @override
+  String get discoveredContacts_searchHint => 'Buscar contactos descubiertos';
+
+  @override
+  String get discoveredContacts_contactAdded => 'Contacto agregado';
+
+  @override
+  String get discoveredContacts_addContact => 'Agregar contacto';
+
+  @override
+  String get discoveredContacts_copyContact =>
+      'Copiar contacto al portapapeles';
+
+  @override
+  String get discoveredContacts_deleteContact => 'Eliminar contacto';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Eliminar Todos los Contactos Descubiertos';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      '¿Está seguro de que desea eliminar todos los contactos descubiertos!';
 }

lib/l10n/app_localizations_fr.dart

@@ -38,6 +38,9 @@ class AppLocalizationsFr extends AppLocalizations {
   @override
   String get common_delete => 'Supprimer';
 
+  @override
+  String get common_deleteAll => 'Supprimer tout';
+
   @override
   String get common_close => 'Fermer';
 
@@ -108,6 +111,91 @@ class AppLocalizationsFr extends AppLocalizations {
   @override
   String get scanner_title => 'MeshCore Open';
 
+  @override
+  String get connectionChoiceUsbLabel => 'USB';
+
+  @override
+  String get connectionChoiceBluetoothLabel => 'Bluetooth';
+
+  @override
+  String get usbScreenTitle => 'Connectez via USB';
+
+  @override
+  String get usbScreenSubtitle =>
+      'Sélectionnez un périphérique série détecté et connectez-vous directement à votre nœud MeshCore.';
+
+  @override
+  String get usbScreenStatus => 'Sélectionnez un périphérique USB';
+
+  @override
+  String get usbScreenNote =>
+      'La communication série USB est active sur les appareils Android et les plateformes de bureau compatibles.';
+
+  @override
+  String get usbScreenEmptyState =>
+      'Aucun périphérique USB n\'a été trouvé. Veuillez en brancher un et rafraîchir la page.';
+
+  @override
+  String get usbErrorPermissionDenied => 'L\'accès via USB a été refusé.';
+
+  @override
+  String get usbErrorDeviceMissing =>
+      'Le périphérique USB sélectionné n\'est plus disponible.';
+
+  @override
+  String get usbErrorInvalidPort => 'Sélectionnez un périphérique USB valide.';
+
+  @override
+  String get usbErrorBusy =>
+      'Une autre demande de connexion USB est déjà en cours.';
+
+  @override
+  String get usbErrorNotConnected => 'Aucun appareil USB n\'est connecté.';
+
+  @override
+  String get usbErrorOpenFailed =>
+      'Impossible d\'ouvrir l\'appareil USB sélectionné.';
+
+  @override
+  String get usbErrorConnectFailed =>
+      'Impossible de se connecter à l\'appareil USB sélectionné.';
+
+  @override
+  String get usbErrorUnsupported =>
+      'La communication série USB n\'est pas prise en charge sur cette plateforme.';
+
+  @override
+  String get usbErrorAlreadyActive => 'Une connexion USB est déjà établie.';
+
+  @override
+  String get usbErrorNoDeviceSelected =>
+      'Aucun appareil USB n\'a été sélectionné.';
+
+  @override
+  String get usbErrorPortClosed => 'La connexion USB n\'est pas établie.';
+
+  @override
+  String get usbErrorConnectTimedOut =>
+      'La connexion a expiré. Assurez-vous que l\'appareil dispose du firmware USB Companion.';
+
+  @override
+  String get usbFallbackDeviceName =>
+      'Dispositif de communication série sur le Web';
+
+  @override
+  String get usbStatus_notConnected => 'Sélectionnez un périphérique USB';
+
+  @override
+  String get usbStatus_connecting => 'Connexion au périphérique USB...';
+
+  @override
+  String get usbStatus_searching => 'Recherche de périphériques USB...';
+
+  @override
+  String usbConnectionFailed(String error) {
+    return 'Échec de la connexion USB : $error';
+  }
+
   @override
   String get scanner_scanning => 'Recherche de périphériques...';
 
@@ -150,6 +238,13 @@ class AppLocalizationsFr extends AppLocalizations {
   String get scanner_bluetoothOffMessage =>
       'Veuillez activer le Bluetooth pour rechercher des appareils.';
 
+  @override
+  String get scanner_chromeRequired => 'Navigateur Chrome requis';
+
+  @override
+  String get scanner_chromeRequiredMessage =>
+      'Cette application web nécessite Google Chrome ou un navigateur basé sur Chromium pour le support Bluetooth.';
+
   @override
   String get scanner_enableBluetooth => 'Activer le Bluetooth';
 
@@ -234,6 +329,13 @@ class AppLocalizationsFr extends AppLocalizations {
   @override
   String get settings_longitude => 'Longitude';
 
+  @override
+  String get settings_contactSettings => 'Paramètres de contact';
+
+  @override
+  String get settings_contactSettingsSubtitle =>
+      'Paramètres pour l\'ajout de contacts';
+
   @override
   String get settings_privacyMode => 'Mode de confidentialité';
 
@@ -324,6 +426,10 @@ class AppLocalizationsFr extends AppLocalizations {
   String get settings_aboutDescription =>
       'Un client Flutter open source pour les appareils de réseau mesh MeshCore LoRa.';
 
+  @override
+  String get settings_aboutOpenMeteoAttribution =>
+      'Données d\'élévation LOS : Open-Meteo (CC BY 4.0)';
+
   @override
   String get settings_infoName => 'Nom';
 
@@ -460,6 +566,14 @@ class AppLocalizationsFr extends AppLocalizations {
   @override
   String get appSettings_languageUk => 'Ukrainien';
 
+  @override
+  String get appSettings_enableMessageTracing =>
+      'Activer le traçage des messages';
+
+  @override
+  String get appSettings_enableMessageTracingSubtitle =>
+      'Afficher les métadonnées détaillées de routage et de synchronisation des messages';
+
   @override
   String get appSettings_notifications => 'Notifications';
 
@@ -622,6 +736,15 @@ class AppLocalizationsFr extends AppLocalizations {
   @override
   String get appSettings_offlineMapCache => 'Cache de Carte Hors Ligne';
 
+  @override
+  String get appSettings_unitsTitle => 'Unités';
+
+  @override
+  String get appSettings_unitsMetric => 'Métrique (m/km)';
+
+  @override
+  String get appSettings_unitsImperial => 'Impérial (ft / mi)';
+
   @override
   String get appSettings_noAreaSelected => 'Aucune zone sélectionnée';
 
@@ -660,7 +783,35 @@ class AppLocalizationsFr extends AppLocalizations {
       'Les contacts apparaîtront lorsque les appareils font leur annonce.';
 
   @override
-  String get contacts_searchContacts => 'Rechercher des contacts...';
+  String get contacts_unread => 'Non lu';
+
+  @override
+  String get contacts_searchContactsNoNumber => 'Rechercher des contacts...';
+
+  @override
+  String contacts_searchContacts(int number, String str) {
+    return 'Rechercher des contacts...';
+  }
+
+  @override
+  String contacts_searchFavorites(int number, String str) {
+    return 'Rechercher $number$str Favoris...';
+  }
+
+  @override
+  String contacts_searchUsers(int number, String str) {
+    return 'Rechercher $number$str utilisateurs...';
+  }
+
+  @override
+  String contacts_searchRepeaters(int number, String str) {
+    return 'Rechercher $number$str Répéteurs...';
+  }
+
+  @override
+  String contacts_searchRoomServers(int number, String str) {
+    return 'Rechercher $number$str serveurs de salle...';
+  }
 
   @override
   String get contacts_noUnreadContacts => 'Aucun contact non lu';
@@ -683,7 +834,7 @@ class AppLocalizationsFr extends AppLocalizations {
   String get contacts_manageRoom => 'Gérer le Room Server';
 
   @override
-  String get contacts_roomLogin => 'Connexion Salle';
+  String get contacts_roomLogin => 'Connexion Room Server';
 
   @override
   String get contacts_openChat => 'Ouverture du Chat';
@@ -728,23 +879,23 @@ class AppLocalizationsFr extends AppLocalizations {
 
   @override
   String contacts_lastSeenMinsAgo(int minutes) {
-    return 'Vu il y a $minutes minutes';
+    return '~ $minutes min.';
   }
 
   @override
-  String get contacts_lastSeenHourAgo => 'Vu il y a 1 heure';
+  String get contacts_lastSeenHourAgo => '~ 1 heure';
 
   @override
   String contacts_lastSeenHoursAgo(int hours) {
-    return 'Vu il y a $hours heures';
+    return '~ $hours heures';
   }
 
   @override
-  String get contacts_lastSeenDayAgo => 'Vu il y a 1 jour';
+  String get contacts_lastSeenDayAgo => '~ 1 jour';
 
   @override
   String contacts_lastSeenDaysAgo(int days) {
-    return 'Vu il y a $days jours';
+    return '~ $days jours';
   }
 
   @override
@@ -785,6 +936,12 @@ class AppLocalizationsFr extends AppLocalizations {
   @override
   String get channels_editChannel => 'Modifier le canal';
 
+  @override
+  String get channels_muteChannel => 'Désactiver les notifications du canal';
+
+  @override
+  String get channels_unmuteChannel => 'Réactiver les notifications du canal';
+
   @override
   String get channels_deleteChannel => 'Supprimer le canal';
 
@@ -793,6 +950,11 @@ class AppLocalizationsFr extends AppLocalizations {
     return 'Supprimer $name? Cela ne peut pas être annulé.';
   }
 
+  @override
+  String channels_channelDeleteFailed(String name) {
+    return 'Échec de la suppression de la chaîne \"$name\"';
+  }
+
   @override
   String channels_channelDeleted(String name) {
     return 'Le canal \"$name\" a été supprimé';
@@ -1082,6 +1244,9 @@ class AppLocalizationsFr extends AppLocalizations {
   @override
   String get chat_pathManagement => 'Gestion des chemins';
 
+  @override
+  String get chat_ShowAllPaths => 'Afficher tous les chemins';
+
   @override
   String get chat_routingMode => 'Mode de routage';
 
@@ -1243,6 +1408,12 @@ class AppLocalizationsFr extends AppLocalizations {
   @override
   String get map_title => 'Carte des nœuds';
 
+  @override
+  String get map_lineOfSight => 'Ligne de vue';
+
+  @override
+  String get map_losScreenTitle => 'Ligne de vue';
+
   @override
   String get map_noNodesWithLocation =>
       'Aucun nœud avec des données de localisation';
@@ -1361,6 +1532,13 @@ class AppLocalizationsFr extends AppLocalizations {
   @override
   String get map_showSharedMarkers => 'Afficher les marqueurs partagés';
 
+  @override
+  String get map_showGuessedLocations =>
+      'Afficher les emplacements des nœuds estimés';
+
+  @override
+  String get map_guessedLocation => 'Lieu deviné';
+
   @override
   String get map_lastSeenTime => 'Dernière fois vu';
 
@@ -1531,7 +1709,7 @@ class AppLocalizationsFr extends AppLocalizations {
   String get login_repeaterLogin => 'Connexion au répéteur';
 
   @override
-  String get login_roomLogin => 'Connexion Salle';
+  String get login_roomLogin => 'Connexion Room Server';
 
   @override
   String get login_password => 'Mot de passe';
@@ -1656,7 +1834,7 @@ class AppLocalizationsFr extends AppLocalizations {
   String get repeater_management => 'Gestion des répéteurs';
 
   @override
-  String get room_management => 'Administración del Servidor de Habitación';
+  String get room_management => 'Administrattion Room Server';
 
   @override
   String get repeater_managementTools => 'Outils de Gestion';
@@ -1682,11 +1860,10 @@ class AppLocalizationsFr extends AppLocalizations {
   String get repeater_cliSubtitle => 'Envoyer des commandes au répéteur';
 
   @override
-  String get repeater_neighbours => 'Voisins';
+  String get repeater_neighbors => 'Voisins';
 
   @override
-  String get repeater_neighboursSubtitle =>
+  String get repeater_neighborsSubtitle => 'Afficher les voisins de saut nuls.';
-      'Afficher les voisins de saut nuls.';
 
   @override
   String get repeater_settings => 'Paramètres';
@@ -2391,7 +2568,7 @@ class AppLocalizationsFr extends AppLocalizations {
   }
 
   @override
-  String get neighbors_repeatersNeighbours => 'Répéteurs Voisins';
+  String get neighbors_repeatersNeighbors => 'Répéteurs Voisins';
 
   @override
   String get neighbors_noData =>
@@ -2702,6 +2879,15 @@ class AppLocalizationsFr extends AppLocalizations {
   @override
   String get listFilter_all => 'Tout';
 
+  @override
+  String get listFilter_favorites => 'Préférences';
+
+  @override
+  String get listFilter_addToFavorites => 'Ajouter à mes favoris';
+
+  @override
+  String get listFilter_removeFromFavorites => 'Supprimer des favoris';
+
   @override
   String get listFilter_users => 'Utilisateurs';
 
@@ -2736,6 +2922,145 @@ class AppLocalizationsFr extends AppLocalizations {
   @override
   String get pathTrace_clearTooltip => 'Effacer le chemin';
 
+  @override
+  String get losSelectStartEnd =>
+      'Sélectionnez les nœuds de début et de fin pour LOS.';
+
+  @override
+  String losRunFailed(String error) {
+    return 'Échec de la vérification de la ligne de vue : $error';
+  }
+
+  @override
+  String get losClearAllPoints => 'Effacer tous les points';
+
+  @override
+  String get losRunToViewElevationProfile =>
+      'Exécutez LOS pour afficher le profil d\'altitude';
+
+  @override
+  String get losMenuTitle => 'Menu LOS';
+
+  @override
+  String get losMenuSubtitle =>
+      'Appuyez sur les nœuds ou appuyez longuement sur la carte pour des points personnalisés';
+
+  @override
+  String get losShowDisplayNodes => 'Afficher les nœuds d\'affichage';
+
+  @override
+  String get losCustomPoints => 'Points personnalisés';
+
+  @override
+  String losCustomPointLabel(int index) {
+    return 'Personnalisé $index';
+  }
+
+  @override
+  String get losPointA => 'Point A';
+
+  @override
+  String get losPointB => 'Point B';
+
+  @override
+  String losAntennaA(String value, String unit) {
+    return 'Antenne A : $value $unit';
+  }
+
+  @override
+  String losAntennaB(String value, String unit) {
+    return 'Antenne B : $value $unit';
+  }
+
+  @override
+  String get losRun => 'Exécuter la LOS';
+
+  @override
+  String get losNoElevationData => 'Aucune donnée d\'altitude';
+
+  @override
+  String losProfileClear(
+    String distance,
+    String distanceUnit,
+    String clearance,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, LOS clair, clairance minimale $clearance $heightUnit';
+  }
+
+  @override
+  String losProfileBlocked(
+    String distance,
+    String distanceUnit,
+    String obstruction,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, bloqué par $obstruction $heightUnit';
+  }
+
+  @override
+  String get losStatusChecking => 'LOS : vérification...';
+
+  @override
+  String get losStatusNoData => 'LOS : aucune donnée';
+
+  @override
+  String losStatusSummary(int clear, int total, int blocked, int unknown) {
+    return 'LOS : $clear/$total clair, $blocked bloqué, $unknown inconnu';
+  }
+
+  @override
+  String get losErrorElevationUnavailable =>
+      'Données d\'altitude indisponibles pour un ou plusieurs échantillons.';
+
+  @override
+  String get losErrorInvalidInput =>
+      'Données de points/d\'altitude non valides pour le calcul de la LOS.';
+
+  @override
+  String get losRenameCustomPoint => 'Renommer le point personnalisé';
+
+  @override
+  String get losPointName => 'Nom du point';
+
+  @override
+  String get losShowPanelTooltip => 'Afficher le panneau LOS';
+
+  @override
+  String get losHidePanelTooltip => 'Masquer le panneau LOS';
+
+  @override
+  String get losElevationAttribution =>
+      'Données d’altitude : Open-Meteo (CC BY 4.0)';
+
+  @override
+  String get losLegendRadioHorizon => 'Horizon radio';
+
+  @override
+  String get losLegendLosBeam => 'Ligne de visée';
+
+  @override
+  String get losLegendTerrain => 'Terrain';
+
+  @override
+  String get losFrequencyLabel => 'Fréquence';
+
+  @override
+  String get losFrequencyInfoTooltip => 'Voir les détails du calcul';
+
+  @override
+  String get losFrequencyDialogTitle => 'Calcul de l’horizon radio';
+
+  @override
+  String losFrequencyDialogDescription(
+    double baselineK,
+    double baselineFreq,
+    double frequencyMHz,
+    double kFactor,
+  ) {
+    return 'À partir de k=$baselineK à $baselineFreq MHz, le calcul ajuste le facteur k pour la bande actuelle de $frequencyMHz MHz, ce qui définit la limite incurvée de l\'horizon radio.';
+  }
+
   @override
   String get contacts_pathTrace => 'Traçage de chemin';
 
@@ -2913,4 +3238,90 @@ class AppLocalizationsFr extends AppLocalizations {
   @override
   String get settings_gpxExportShareSubject =>
       'meshcore-open exporter les données de carte GPX';
+
+  @override
+  String get snrIndicator_nearByRepeaters => 'Répéteurs à proximité';
+
+  @override
+  String get snrIndicator_lastSeen => 'Dernière fois vu';
+
+  @override
+  String get contactsSettings_title => 'Paramètres des contacts';
+
+  @override
+  String get contactsSettings_autoAddTitle => 'Découverte automatique';
+
+  @override
+  String get contactsSettings_otherTitle =>
+      'Autres paramètres liés aux contacts';
+
+  @override
+  String get contactsSettings_autoAddUsersTitle =>
+      'Ajouter automatiquement les utilisateurs';
+
+  @override
+  String get contactsSettings_autoAddUsersSubtitle =>
+      'Autoriser le compagnon à ajouter automatiquement les utilisateurs découverts';
+
+  @override
+  String get contactsSettings_autoAddRepeatersTitle =>
+      'Ajouter automatiquement les répéteurs';
+
+  @override
+  String get contactsSettings_autoAddRepeatersSubtitle =>
+      'Autoriser le compagnon à ajouter automatiquement les répéteurs découverts';
+
+  @override
+  String get contactsSettings_autoAddRoomServersTitle =>
+      'Ajouter automatiquement les serveurs de salle';
+
+  @override
+  String get contactsSettings_autoAddRoomServersSubtitle =>
+      'Autoriser le compagnon à ajouter automatiquement les serveurs de salles découverts';
+
+  @override
+  String get contactsSettings_autoAddSensorsTitle =>
+      'Ajouter automatiquement les capteurs';
+
+  @override
+  String get contactsSettings_autoAddSensorsSubtitle =>
+      'Autoriser le compagnon à ajouter automatiquement les capteurs découverts.';
+
+  @override
+  String get contactsSettings_overwriteOldestTitle => 'Écraser le plus ancien';
+
+  @override
+  String get contactsSettings_overwriteOldestSubtitle =>
+      'Lorsque la liste de contacts est pleine, le contact le plus ancien non favori sera remplacé.';
+
+  @override
+  String get discoveredContacts_Title => 'Contacts découverts';
+
+  @override
+  String get discoveredContacts_noMatching => 'Aucun contact correspondant';
+
+  @override
+  String get discoveredContacts_searchHint =>
+      'Rechercher des contacts découverts';
+
+  @override
+  String get discoveredContacts_contactAdded => 'Contact ajouté';
+
+  @override
+  String get discoveredContacts_addContact => 'Ajouter un contact';
+
+  @override
+  String get discoveredContacts_copyContact =>
+      'Copier le contact dans le presse-papiers';
+
+  @override
+  String get discoveredContacts_deleteContact => 'Supprimer le contact';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Supprimer tous les contacts découverts';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Êtes-vous sûr de vouloir supprimer tous les contacts découverts ?';
 }

lib/l10n/app_localizations_it.dart

@@ -38,6 +38,9 @@ class AppLocalizationsIt extends AppLocalizations {
   @override
   String get common_delete => 'Elimina';
 
+  @override
+  String get common_deleteAll => 'Elimina tutto';
+
   @override
   String get common_close => 'Chiudi';
 
@@ -108,6 +111,92 @@ class AppLocalizationsIt extends AppLocalizations {
   @override
   String get scanner_title => 'MeshCore Open';
 
+  @override
+  String get connectionChoiceUsbLabel => 'USB';
+
+  @override
+  String get connectionChoiceBluetoothLabel => 'Bluetooth';
+
+  @override
+  String get usbScreenTitle => 'Connessione tramite USB';
+
+  @override
+  String get usbScreenSubtitle =>
+      'Seleziona il dispositivo seriale rilevato e connettilo direttamente al tuo nodo MeshCore.';
+
+  @override
+  String get usbScreenStatus => 'Seleziona un dispositivo USB';
+
+  @override
+  String get usbScreenNote =>
+      'La comunicazione seriale USB è attiva sui dispositivi Android supportati e sulle piattaforme desktop.';
+
+  @override
+  String get usbScreenEmptyState =>
+      'Nessun dispositivo USB rilevato. Collegare uno e aggiornare.';
+
+  @override
+  String get usbErrorPermissionDenied =>
+      'È stato negato l\'accesso tramite USB.';
+
+  @override
+  String get usbErrorDeviceMissing =>
+      'Il dispositivo USB selezionato non è più disponibile.';
+
+  @override
+  String get usbErrorInvalidPort => 'Seleziona un dispositivo USB valido.';
+
+  @override
+  String get usbErrorBusy =>
+      'Un\'altra richiesta di connessione tramite USB è già in corso.';
+
+  @override
+  String get usbErrorNotConnected => 'Non è collegato alcun dispositivo USB.';
+
+  @override
+  String get usbErrorOpenFailed =>
+      'Impossibile aprire il dispositivo USB selezionato.';
+
+  @override
+  String get usbErrorConnectFailed =>
+      'Impossibile connettersi al dispositivo USB selezionato.';
+
+  @override
+  String get usbErrorUnsupported =>
+      'La comunicazione seriale tramite USB non è supportata su questa piattaforma.';
+
+  @override
+  String get usbErrorAlreadyActive => 'La connessione USB è già attiva.';
+
+  @override
+  String get usbErrorNoDeviceSelected =>
+      'Non è stato selezionato alcun dispositivo USB.';
+
+  @override
+  String get usbErrorPortClosed => 'La connessione USB non è attiva.';
+
+  @override
+  String get usbErrorConnectTimedOut =>
+      'La connessione è scaduta. Assicurarsi che il dispositivo abbia il firmware USB Companion.';
+
+  @override
+  String get usbFallbackDeviceName =>
+      'Dispositivo per comunicazione seriale su rete';
+
+  @override
+  String get usbStatus_notConnected => 'Seleziona un dispositivo USB';
+
+  @override
+  String get usbStatus_connecting => 'Connessione al dispositivo USB...';
+
+  @override
+  String get usbStatus_searching => 'Ricerca di dispositivi USB...';
+
+  @override
+  String usbConnectionFailed(String error) {
+    return 'Errore nella connessione USB: $error';
+  }
+
   @override
   String get scanner_scanning => 'Scansione in corso per i dispositivi...';
 
@@ -150,6 +239,13 @@ class AppLocalizationsIt extends AppLocalizations {
   String get scanner_bluetoothOffMessage =>
       'Si prega di attivare il Bluetooth per effettuare la scansione dei dispositivi.';
 
+  @override
+  String get scanner_chromeRequired => 'Browser Chrome richiesto';
+
+  @override
+  String get scanner_chromeRequiredMessage =>
+      'Questa applicazione web richiede Google Chrome o un browser basato su Chromium per il supporto Bluetooth.';
+
   @override
   String get scanner_enableBluetooth => 'Abilita il Bluetooth';
 
@@ -233,6 +329,13 @@ class AppLocalizationsIt extends AppLocalizations {
   @override
   String get settings_longitude => 'Longitudine';
 
+  @override
+  String get settings_contactSettings => 'Impostazioni di contatto';
+
+  @override
+  String get settings_contactSettingsSubtitle =>
+      'Impostazioni per l\'aggiunta dei contatti';
+
   @override
   String get settings_privacyMode => 'Modalità Privacy';
 
@@ -322,6 +425,10 @@ class AppLocalizationsIt extends AppLocalizations {
   String get settings_aboutDescription =>
       'Un client Flutter open-source per i dispositivi di rete mesh LoRa Core di MeshCore.';
 
+  @override
+  String get settings_aboutOpenMeteoAttribution =>
+      'Dati di elevazione LOS: Open-Meteo (CC BY 4.0)';
+
   @override
   String get settings_infoName => 'Nome';
 
@@ -458,6 +565,14 @@ class AppLocalizationsIt extends AppLocalizations {
   @override
   String get appSettings_languageUk => 'Ucraino';
 
+  @override
+  String get appSettings_enableMessageTracing =>
+      'Abilita tracciamento messaggi';
+
+  @override
+  String get appSettings_enableMessageTracingSubtitle =>
+      'Mostra metadati dettagliati su instradamento e tempi per i messaggi';
+
   @override
   String get appSettings_notifications => 'Notifiche';
 
@@ -619,6 +734,15 @@ class AppLocalizationsIt extends AppLocalizations {
   @override
   String get appSettings_offlineMapCache => 'Cache Mappa Offline';
 
+  @override
+  String get appSettings_unitsTitle => 'Unità';
+
+  @override
+  String get appSettings_unitsMetric => 'Metrico (m/km)';
+
+  @override
+  String get appSettings_unitsImperial => 'Imperiale (ft / mi)';
+
   @override
   String get appSettings_noAreaSelected => 'Nessun\'area selezionata';
 
@@ -656,7 +780,35 @@ class AppLocalizationsIt extends AppLocalizations {
       'I contatti appariranno quando i dispositivi pubblicizzano.';
 
   @override
-  String get contacts_searchContacts => 'Cerca contatti...';
+  String get contacts_unread => 'Non letti';
+
+  @override
+  String get contacts_searchContactsNoNumber => 'Cerca Contatti...';
+
+  @override
+  String contacts_searchContacts(int number, String str) {
+    return 'Cerca contatti...';
+  }
+
+  @override
+  String contacts_searchFavorites(int number, String str) {
+    return 'Cerca $number$str Preferiti...';
+  }
+
+  @override
+  String contacts_searchUsers(int number, String str) {
+    return 'Cerca $number$str Utenti...';
+  }
+
+  @override
+  String contacts_searchRepeaters(int number, String str) {
+    return 'Cerca $number$str Ripetitori...';
+  }
+
+  @override
+  String contacts_searchRoomServers(int number, String str) {
+    return 'Cerca $number$str server Room...';
+  }
 
   @override
   String get contacts_noUnreadContacts => 'Nessun contatto non letto';
@@ -781,6 +933,12 @@ class AppLocalizationsIt extends AppLocalizations {
   @override
   String get channels_editChannel => 'Modifica canale';
 
+  @override
+  String get channels_muteChannel => 'Silenzia canale';
+
+  @override
+  String get channels_unmuteChannel => 'Attiva notifiche canale';
+
   @override
   String get channels_deleteChannel => 'Elimina canale';
 
@@ -789,6 +947,11 @@ class AppLocalizationsIt extends AppLocalizations {
     return 'Eliminare \"$name\"? Non può essere annullato.';
   }
 
+  @override
+  String channels_channelDeleteFailed(String name) {
+    return 'Impossibile eliminare il canale \"$name\"';
+  }
+
   @override
   String channels_channelDeleted(String name) {
     return 'Canale \"$name\" eliminato';
@@ -1077,6 +1240,9 @@ class AppLocalizationsIt extends AppLocalizations {
   @override
   String get chat_pathManagement => 'Gestione Percorsi';
 
+  @override
+  String get chat_ShowAllPaths => 'Mostra tutti i percorsi';
+
   @override
   String get chat_routingMode => 'Modalità di routing';
 
@@ -1236,6 +1402,12 @@ class AppLocalizationsIt extends AppLocalizations {
   @override
   String get map_title => 'Mappa Nodi';
 
+  @override
+  String get map_lineOfSight => 'Linea di vista';
+
+  @override
+  String get map_losScreenTitle => 'Linea di vista';
+
   @override
   String get map_noNodesWithLocation => 'Nessun nodo con dati di posizione';
 
@@ -1353,6 +1525,12 @@ class AppLocalizationsIt extends AppLocalizations {
   @override
   String get map_showSharedMarkers => 'Mostra i segnaposto condivisi';
 
+  @override
+  String get map_showGuessedLocations => 'Mostra le posizioni stimate dei nodi';
+
+  @override
+  String get map_guessedLocation => 'Località indovinata';
+
   @override
   String get map_lastSeenTime => 'Ultimo Tempo di Visualizzazione';
 
@@ -1672,10 +1850,10 @@ class AppLocalizationsIt extends AppLocalizations {
   String get repeater_cliSubtitle => 'Invia comandi al ripetitore';
 
   @override
-  String get repeater_neighbours => 'Vicini';
+  String get repeater_neighbors => 'Vicini';
 
   @override
-  String get repeater_neighboursSubtitle =>
+  String get repeater_neighborsSubtitle =>
       'Visualizza vicini di salto pari a zero.';
 
   @override
@@ -2376,7 +2554,7 @@ class AppLocalizationsIt extends AppLocalizations {
   }
 
   @override
-  String get neighbors_repeatersNeighbours => 'Ripetitori Vicini';
+  String get neighbors_repeatersNeighbors => 'Ripetitori Vicini';
 
   @override
   String get neighbors_noData => 'Nessun dato sugli vicini disponibile.';
@@ -2685,6 +2863,15 @@ class AppLocalizationsIt extends AppLocalizations {
   @override
   String get listFilter_all => 'Tutti';
 
+  @override
+  String get listFilter_favorites => 'Preferiti';
+
+  @override
+  String get listFilter_addToFavorites => 'Aggiungi ai preferiti';
+
+  @override
+  String get listFilter_removeFromFavorites => 'Rimuovi dai preferiti';
+
   @override
   String get listFilter_users => 'Utenti';
 
@@ -2720,6 +2907,145 @@ class AppLocalizationsIt extends AppLocalizations {
   @override
   String get pathTrace_clearTooltip => 'Pulisci percorso';
 
+  @override
+  String get losSelectStartEnd =>
+      'Seleziona i nodi iniziali e finali per la LOS.';
+
+  @override
+  String losRunFailed(String error) {
+    return 'Controllo della linea di vista fallito: $error';
+  }
+
+  @override
+  String get losClearAllPoints => 'Cancella tutti i punti';
+
+  @override
+  String get losRunToViewElevationProfile =>
+      'Eseguire LOS per visualizzare il profilo altimetrico';
+
+  @override
+  String get losMenuTitle => 'Menù LOS';
+
+  @override
+  String get losMenuSubtitle =>
+      'Tocca i nodi o premi a lungo la mappa per punti personalizzati';
+
+  @override
+  String get losShowDisplayNodes => 'Mostra i nodi di visualizzazione';
+
+  @override
+  String get losCustomPoints => 'Punti personalizzati';
+
+  @override
+  String losCustomPointLabel(int index) {
+    return 'Personalizzato $index';
+  }
+
+  @override
+  String get losPointA => 'Punto A';
+
+  @override
+  String get losPointB => 'Punto B';
+
+  @override
+  String losAntennaA(String value, String unit) {
+    return 'Antenna A: $value $unit';
+  }
+
+  @override
+  String losAntennaB(String value, String unit) {
+    return 'Antenna B: $value $unit';
+  }
+
+  @override
+  String get losRun => 'Esegui LOS';
+
+  @override
+  String get losNoElevationData => 'Nessun dato di elevazione';
+
+  @override
+  String losProfileClear(
+    String distance,
+    String distanceUnit,
+    String clearance,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, libera LOS, distanza minima $clearance $heightUnit';
+  }
+
+  @override
+  String losProfileBlocked(
+    String distance,
+    String distanceUnit,
+    String obstruction,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, bloccato da $obstruction $heightUnit';
+  }
+
+  @override
+  String get losStatusChecking => 'LOS: controllo...';
+
+  @override
+  String get losStatusNoData => 'LOS: nessun dato';
+
+  @override
+  String losStatusSummary(int clear, int total, int blocked, int unknown) {
+    return 'LOS: $clear/$total libera, $blocked bloccato, $unknown sconosciuto';
+  }
+
+  @override
+  String get losErrorElevationUnavailable =>
+      'Dati di elevazione non disponibili per uno o più campioni.';
+
+  @override
+  String get losErrorInvalidInput =>
+      'Dati punti/elevazione non validi per il calcolo della LOS.';
+
+  @override
+  String get losRenameCustomPoint => 'Rinomina punto personalizzato';
+
+  @override
+  String get losPointName => 'Nome del punto';
+
+  @override
+  String get losShowPanelTooltip => 'Mostra il pannello LOS';
+
+  @override
+  String get losHidePanelTooltip => 'Nascondi il pannello LOS';
+
+  @override
+  String get losElevationAttribution =>
+      'Dati di elevazione: Open-Meteo (CC BY 4.0)';
+
+  @override
+  String get losLegendRadioHorizon => 'Orizzonte radio';
+
+  @override
+  String get losLegendLosBeam => 'Linea di vista';
+
+  @override
+  String get losLegendTerrain => 'Terreno';
+
+  @override
+  String get losFrequencyLabel => 'Frequenza';
+
+  @override
+  String get losFrequencyInfoTooltip => 'Visualizza i dettagli del calcolo';
+
+  @override
+  String get losFrequencyDialogTitle => 'Calcolo dell’orizzonte radio';
+
+  @override
+  String losFrequencyDialogDescription(
+    double baselineK,
+    double baselineFreq,
+    double frequencyMHz,
+    double kFactor,
+  ) {
+    return 'Partendo da k=$baselineK a $baselineFreq MHz, il calcolo regola il fattore k per l\'attuale banda $frequencyMHz MHz, che definisce il limite curvo dell\'orizzonte radio.';
+  }
+
   @override
   String get contacts_pathTrace => 'Traccia Percorso';
 
@@ -2893,4 +3219,89 @@ class AppLocalizationsIt extends AppLocalizations {
   @override
   String get settings_gpxExportShareSubject =>
       'meshcore-open esportazione dati mappa GPX';
+
+  @override
+  String get snrIndicator_nearByRepeaters => 'Ripetitori vicini';
+
+  @override
+  String get snrIndicator_lastSeen => 'Ultimo accesso';
+
+  @override
+  String get contactsSettings_title => 'Impostazioni dei contatti';
+
+  @override
+  String get contactsSettings_autoAddTitle => 'Scoperta automatica';
+
+  @override
+  String get contactsSettings_otherTitle =>
+      'Altre impostazioni relative ai contatti';
+
+  @override
+  String get contactsSettings_autoAddUsersTitle =>
+      'Aggiungere utenti automaticamente';
+
+  @override
+  String get contactsSettings_autoAddUsersSubtitle =>
+      'Consenti al compagno di aggiungere automaticamente gli utenti scoperti.';
+
+  @override
+  String get contactsSettings_autoAddRepeatersTitle =>
+      'Aggiungere ripetitori automaticamente';
+
+  @override
+  String get contactsSettings_autoAddRepeatersSubtitle =>
+      'Consenti al compagno di aggiungere automaticamente i ripetitori scoperti.';
+
+  @override
+  String get contactsSettings_autoAddRoomServersTitle =>
+      'Aggiungere automaticamente i server delle stanze';
+
+  @override
+  String get contactsSettings_autoAddRoomServersSubtitle =>
+      'Consenti al compagno di aggiungere automaticamente i server delle stanze scoperte.';
+
+  @override
+  String get contactsSettings_autoAddSensorsTitle =>
+      'Aggiungere automaticamente i sensori';
+
+  @override
+  String get contactsSettings_autoAddSensorsSubtitle =>
+      'Consenti al compagno di aggiungere automaticamente i sensori scoperti';
+
+  @override
+  String get contactsSettings_overwriteOldestTitle =>
+      'Sostituisci il più vecchio';
+
+  @override
+  String get contactsSettings_overwriteOldestSubtitle =>
+      'Quando l\'elenco dei contatti è pieno, il contatto più vecchio non tra i preferiti verrà sostituito.';
+
+  @override
+  String get discoveredContacts_Title => 'Contatti scoperti';
+
+  @override
+  String get discoveredContacts_noMatching => 'Nessun contatto corrispondente';
+
+  @override
+  String get discoveredContacts_searchHint => 'Cerca contatti scoperti';
+
+  @override
+  String get discoveredContacts_contactAdded => 'Contatto aggiunto';
+
+  @override
+  String get discoveredContacts_addContact => 'Aggiungi contatto';
+
+  @override
+  String get discoveredContacts_copyContact => 'Copia contatto negli appunti';
+
+  @override
+  String get discoveredContacts_deleteContact => 'Elimina Contatto';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Eliminare tutti i contatti scoperti';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Sei sicuro di voler eliminare tutti i contatti scoperti?';
 }

lib/l10n/app_localizations_nl.dart

@@ -38,6 +38,9 @@ class AppLocalizationsNl extends AppLocalizations {
   @override
   String get common_delete => 'Verwijderen';
 
+  @override
+  String get common_deleteAll => 'Alles verwijderen';
+
   @override
   String get common_close => 'Sluiten';
 
@@ -108,6 +111,89 @@ class AppLocalizationsNl extends AppLocalizations {
   @override
   String get scanner_title => 'MeshCore Open';
 
+  @override
+  String get connectionChoiceUsbLabel => 'USB';
+
+  @override
+  String get connectionChoiceBluetoothLabel => 'Bluetooth';
+
+  @override
+  String get usbScreenTitle => 'Verbind via USB';
+
+  @override
+  String get usbScreenSubtitle =>
+      'Selecteer een gedetecteerd seriële apparaat en verbind deze direct met uw MeshCore-node.';
+
+  @override
+  String get usbScreenStatus => 'Selecteer een USB-apparaat';
+
+  @override
+  String get usbScreenNote =>
+      'USB-serieel is actief op ondersteunde Android-apparaten en desktop-platforms.';
+
+  @override
+  String get usbScreenEmptyState =>
+      'Geen USB-apparaten gevonden. Sluit er een aan en herlaad.';
+
+  @override
+  String get usbErrorPermissionDenied => 'Toegang via USB is geweigerd.';
+
+  @override
+  String get usbErrorDeviceMissing =>
+      'Het geselecteerde USB-apparaat is niet meer beschikbaar.';
+
+  @override
+  String get usbErrorInvalidPort => 'Selecteer een geldig USB-apparaat.';
+
+  @override
+  String get usbErrorBusy =>
+      'Een andere verzoek om een USB-verbinding is al in behandeling.';
+
+  @override
+  String get usbErrorNotConnected => 'Er is geen USB-apparaat aangesloten.';
+
+  @override
+  String get usbErrorOpenFailed =>
+      'Kon het geselecteerde USB-apparaat niet openen.';
+
+  @override
+  String get usbErrorConnectFailed =>
+      'Kon niet verbinding maken met het geselecteerde USB-apparaat.';
+
+  @override
+  String get usbErrorUnsupported =>
+      'USB-serieel is niet ondersteund op deze platform.';
+
+  @override
+  String get usbErrorAlreadyActive => 'Een USB-verbinding is al actief.';
+
+  @override
+  String get usbErrorNoDeviceSelected => 'Geen USB-apparaat is geselecteerd.';
+
+  @override
+  String get usbErrorPortClosed => 'De USB-verbinding is niet actief.';
+
+  @override
+  String get usbErrorConnectTimedOut =>
+      'Verbinding is verbroken. Zorg ervoor dat het apparaat de juiste USB-firmware heeft.';
+
+  @override
+  String get usbFallbackDeviceName => 'Web-serieapparaat';
+
+  @override
+  String get usbStatus_notConnected => 'Selecteer een USB-apparaat';
+
+  @override
+  String get usbStatus_connecting => 'Verbinding maken met USB-apparaat...';
+
+  @override
+  String get usbStatus_searching => 'Zoeken naar USB-apparaten...';
+
+  @override
+  String usbConnectionFailed(String error) {
+    return 'Fout bij de USB-verbinding: $error';
+  }
+
   @override
   String get scanner_scanning => 'Scannen naar apparaten...';
 
@@ -149,6 +235,13 @@ class AppLocalizationsNl extends AppLocalizations {
   String get scanner_bluetoothOffMessage =>
       'Zorg ervoor dat Bluetooth is ingeschakeld om naar apparaten te zoeken.';
 
+  @override
+  String get scanner_chromeRequired => 'Chrome-browser vereist';
+
+  @override
+  String get scanner_chromeRequiredMessage =>
+      'Deze webapplicatie vereist Google Chrome of een op Chromium gebaseerde browser voor Bluetooth-ondersteuning.';
+
   @override
   String get scanner_enableBluetooth => 'Activeer Bluetooth';
 
@@ -233,6 +326,13 @@ class AppLocalizationsNl extends AppLocalizations {
   @override
   String get settings_longitude => 'Lengtegraad';
 
+  @override
+  String get settings_contactSettings => 'Contactinstellingen';
+
+  @override
+  String get settings_contactSettingsSubtitle =>
+      'Instellingen voor het toevoegen van contacten';
+
   @override
   String get settings_privacyMode => 'Privacy Mode';
 
@@ -320,6 +420,10 @@ class AppLocalizationsNl extends AppLocalizations {
   String get settings_aboutDescription =>
       'Een open-source Flutter client voor MeshCore LoRa mesh netwerkapparaten.';
 
+  @override
+  String get settings_aboutOpenMeteoAttribution =>
+      'LOS-hoogtegegevens: Open-Meteo (CC BY 4.0)';
+
   @override
   String get settings_infoName => 'Naam';
 
@@ -456,6 +560,13 @@ class AppLocalizationsNl extends AppLocalizations {
   @override
   String get appSettings_languageUk => 'Oekraïens';
 
+  @override
+  String get appSettings_enableMessageTracing => 'Berichttracking inschakelen';
+
+  @override
+  String get appSettings_enableMessageTracingSubtitle =>
+      'Gedetailleerde routerings- en timing-metadata voor berichten weergeven';
+
   @override
   String get appSettings_notifications => 'Notificaties';
 
@@ -617,6 +728,15 @@ class AppLocalizationsNl extends AppLocalizations {
   @override
   String get appSettings_offlineMapCache => 'Offline Kaarten Cache';
 
+  @override
+  String get appSettings_unitsTitle => 'Eenheden';
+
+  @override
+  String get appSettings_unitsMetric => 'Metrisch (m / km)';
+
+  @override
+  String get appSettings_unitsImperial => 'Imperiaal (ft / mi)';
+
   @override
   String get appSettings_noAreaSelected => 'Geen gebied geselecteerd';
 
@@ -654,7 +774,35 @@ class AppLocalizationsNl extends AppLocalizations {
       'Contacten verschijnen wanneer apparaten zich aanbieden.';
 
   @override
-  String get contacts_searchContacts => 'Zoek contacten...';
+  String get contacts_unread => 'Ongelezen';
+
+  @override
+  String get contacts_searchContactsNoNumber => 'Zoek contacten...';
+
+  @override
+  String contacts_searchContacts(int number, String str) {
+    return 'Zoek contacten...';
+  }
+
+  @override
+  String contacts_searchFavorites(int number, String str) {
+    return 'Zoek $number$str favorieten...';
+  }
+
+  @override
+  String contacts_searchUsers(int number, String str) {
+    return 'Zoek $number$str gebruikers...';
+  }
+
+  @override
+  String contacts_searchRepeaters(int number, String str) {
+    return 'Zoek $number$str Repeaters...';
+  }
+
+  @override
+  String contacts_searchRoomServers(int number, String str) {
+    return 'Zoek $number$str Room servers...';
+  }
 
   @override
   String get contacts_noUnreadContacts => 'Geen ongelezen contacten';
@@ -779,6 +927,12 @@ class AppLocalizationsNl extends AppLocalizations {
   @override
   String get channels_editChannel => 'Kanaal bewerken';
 
+  @override
+  String get channels_muteChannel => 'Kanaal dempen';
+
+  @override
+  String get channels_unmuteChannel => 'Kanaal dempen opheffen';
+
   @override
   String get channels_deleteChannel => 'Kanaal verwijderen';
 
@@ -787,6 +941,11 @@ class AppLocalizationsNl extends AppLocalizations {
     return 'Verwijderen \"$name\"? Dit kan niet worden teruggedraaid.';
   }
 
+  @override
+  String channels_channelDeleteFailed(String name) {
+    return 'Kan kanaal $name niet verwijderen';
+  }
+
   @override
   String channels_channelDeleted(String name) {
     return 'Kanaal \"$name\" verwijderd';
@@ -1074,6 +1233,9 @@ class AppLocalizationsNl extends AppLocalizations {
   @override
   String get chat_pathManagement => 'Beheer van Paden';
 
+  @override
+  String get chat_ShowAllPaths => 'Toon alle paden';
+
   @override
   String get chat_routingMode => 'Routeerwijze';
 
@@ -1232,6 +1394,12 @@ class AppLocalizationsNl extends AppLocalizations {
   @override
   String get map_title => 'Node Map';
 
+  @override
+  String get map_lineOfSight => 'Zichtlijn';
+
+  @override
+  String get map_losScreenTitle => 'Zichtlijn';
+
   @override
   String get map_noNodesWithLocation => 'Geen nodes met locatiegegevens';
 
@@ -1349,6 +1517,13 @@ class AppLocalizationsNl extends AppLocalizations {
   @override
   String get map_showSharedMarkers => 'Toon gedeelde markeringen';
 
+  @override
+  String get map_showGuessedLocations =>
+      'Toon de voorspelde locaties van de knopen';
+
+  @override
+  String get map_guessedLocation => 'Geroerde locatie';
+
   @override
   String get map_lastSeenTime => 'Laatste Bekeken Tijd';
 
@@ -1668,10 +1843,10 @@ class AppLocalizationsNl extends AppLocalizations {
   String get repeater_cliSubtitle => 'Verzend commando\'s naar de repeater';
 
   @override
-  String get repeater_neighbours => 'Buren';
+  String get repeater_neighbors => 'Buren';
 
   @override
-  String get repeater_neighboursSubtitle => 'Bekijk nul hops buren.';
+  String get repeater_neighborsSubtitle => 'Bekijk nul hops buren.';
 
   @override
   String get repeater_settings => 'Instellingen';
@@ -2367,7 +2542,7 @@ class AppLocalizationsNl extends AppLocalizations {
   }
 
   @override
-  String get neighbors_repeatersNeighbours => 'Herhalingen Buren';
+  String get neighbors_repeatersNeighbors => 'Herhalingen Buren';
 
   @override
   String get neighbors_noData => 'Geen gegevens van buren beschikbaar.';
@@ -2677,6 +2852,15 @@ class AppLocalizationsNl extends AppLocalizations {
   @override
   String get listFilter_all => 'Alles';
 
+  @override
+  String get listFilter_favorites => 'Favorieten';
+
+  @override
+  String get listFilter_addToFavorites => 'Toevoegen aan favorieten';
+
+  @override
+  String get listFilter_removeFromFavorites => 'Verwijderen uit favorieten';
+
   @override
   String get listFilter_users => 'Gebruikers';
 
@@ -2711,6 +2895,145 @@ class AppLocalizationsNl extends AppLocalizations {
   @override
   String get pathTrace_clearTooltip => 'Weg wissen';
 
+  @override
+  String get losSelectStartEnd =>
+      'Selecteer begin- en eindknooppunten voor LOS.';
+
+  @override
+  String losRunFailed(String error) {
+    return 'Zichtlijncontrole mislukt: $error';
+  }
+
+  @override
+  String get losClearAllPoints => 'Wis alle punten';
+
+  @override
+  String get losRunToViewElevationProfile =>
+      'Voer LOS uit om het hoogteprofiel te bekijken';
+
+  @override
+  String get losMenuTitle => 'LOS-menu';
+
+  @override
+  String get losMenuSubtitle =>
+      'Tik op knooppunten of druk lang op de kaart voor aangepaste punten';
+
+  @override
+  String get losShowDisplayNodes => 'Toon weergaveknooppunten';
+
+  @override
+  String get losCustomPoints => 'Aangepaste punten';
+
+  @override
+  String losCustomPointLabel(int index) {
+    return 'Aangepast $index';
+  }
+
+  @override
+  String get losPointA => 'Punt A';
+
+  @override
+  String get losPointB => 'Punt B';
+
+  @override
+  String losAntennaA(String value, String unit) {
+    return 'Antenne A: $value $unit';
+  }
+
+  @override
+  String losAntennaB(String value, String unit) {
+    return 'Antenne B: $value $unit';
+  }
+
+  @override
+  String get losRun => 'Voer LOS uit';
+
+  @override
+  String get losNoElevationData => 'Geen hoogtegegevens';
+
+  @override
+  String losProfileClear(
+    String distance,
+    String distanceUnit,
+    String clearance,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, vrije LOS, min. vrije ruimte $clearance $heightUnit';
+  }
+
+  @override
+  String losProfileBlocked(
+    String distance,
+    String distanceUnit,
+    String obstruction,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, geblokkeerd door $obstruction $heightUnit';
+  }
+
+  @override
+  String get losStatusChecking => 'LOS: controleren...';
+
+  @override
+  String get losStatusNoData => 'LOS: geen gegevens';
+
+  @override
+  String losStatusSummary(int clear, int total, int blocked, int unknown) {
+    return 'LOS: $clear/$total gewist, $blocked geblokkeerd, $unknown onbekend';
+  }
+
+  @override
+  String get losErrorElevationUnavailable =>
+      'Hoogtegegevens niet beschikbaar voor een of meer monsters.';
+
+  @override
+  String get losErrorInvalidInput =>
+      'Ongeldige punten/hoogtegegevens voor LOS-berekening.';
+
+  @override
+  String get losRenameCustomPoint => 'Hernoem aangepast punt';
+
+  @override
+  String get losPointName => 'Puntnaam';
+
+  @override
+  String get losShowPanelTooltip => 'Toon LOS-paneel';
+
+  @override
+  String get losHidePanelTooltip => 'LOS-paneel verbergen';
+
+  @override
+  String get losElevationAttribution =>
+      'Hoogtegegevens: Open-Meteo (CC BY 4.0)';
+
+  @override
+  String get losLegendRadioHorizon => 'Radiohorizon';
+
+  @override
+  String get losLegendLosBeam => 'Zichtlijn';
+
+  @override
+  String get losLegendTerrain => 'Terrein';
+
+  @override
+  String get losFrequencyLabel => 'Frequentie';
+
+  @override
+  String get losFrequencyInfoTooltip => 'Bekijk details van de berekening';
+
+  @override
+  String get losFrequencyDialogTitle => 'Berekening van de radiohorizon';
+
+  @override
+  String losFrequencyDialogDescription(
+    double baselineK,
+    double baselineFreq,
+    double frequencyMHz,
+    double kFactor,
+  ) {
+    return 'Beginnend met k=$baselineK bij $baselineFreq MHz, wordt bij de berekening de k-factor aangepast voor de huidige $frequencyMHz MHz-band, die de gebogen radiohorizonkap definieert.';
+  }
+
   @override
   String get contacts_pathTrace => 'Pad Traceren';
 
@@ -2881,4 +3204,88 @@ class AppLocalizationsNl extends AppLocalizations {
   @override
   String get settings_gpxExportShareSubject =>
       'meshcore-open GPX kaartgegevens exporteren';
+
+  @override
+  String get snrIndicator_nearByRepeaters => 'Nabije herhalingseenheden';
+
+  @override
+  String get snrIndicator_lastSeen => 'Laatst gezien';
+
+  @override
+  String get contactsSettings_title => 'Instellingen voor contacten';
+
+  @override
+  String get contactsSettings_autoAddTitle => 'Automatische detectie';
+
+  @override
+  String get contactsSettings_otherTitle =>
+      'Andere instellingen voor contactgerelateerde zaken';
+
+  @override
+  String get contactsSettings_autoAddUsersTitle =>
+      'Gebruikers automatisch toevoegen';
+
+  @override
+  String get contactsSettings_autoAddUsersSubtitle =>
+      'Sta toe dat de companion automatisch ontdekte gebruikers toevoegt';
+
+  @override
+  String get contactsSettings_autoAddRepeatersTitle =>
+      'Automatisch herhalingstoestellen toevoegen';
+
+  @override
+  String get contactsSettings_autoAddRepeatersSubtitle =>
+      'Sta toe dat de companion automatisch ontdekte repeaters toevoegt';
+
+  @override
+  String get contactsSettings_autoAddRoomServersTitle =>
+      'Automatisch kamerservers toevoegen';
+
+  @override
+  String get contactsSettings_autoAddRoomServersSubtitle =>
+      'Sta toe dat de companion automatisch ontdekte kamer servers toevoegt.';
+
+  @override
+  String get contactsSettings_autoAddSensorsTitle =>
+      'Automatisch sensoren toevoegen';
+
+  @override
+  String get contactsSettings_autoAddSensorsSubtitle =>
+      'Sta toe dat de companion automatisch ontdekte sensoren toevoegt';
+
+  @override
+  String get contactsSettings_overwriteOldestTitle => 'Overschrijf Oudste';
+
+  @override
+  String get contactsSettings_overwriteOldestSubtitle =>
+      'Wanneer de contactenlijst vol is, wordt de oudste niet-favoriete contactpersoon vervangen.';
+
+  @override
+  String get discoveredContacts_Title => 'Ontdekte contacten';
+
+  @override
+  String get discoveredContacts_noMatching => 'Geen overeenkomende contacten';
+
+  @override
+  String get discoveredContacts_searchHint => 'Ontdekte contacten zoeken';
+
+  @override
+  String get discoveredContacts_contactAdded => 'Contact toegevoegd';
+
+  @override
+  String get discoveredContacts_addContact => 'Contact toevoegen';
+
+  @override
+  String get discoveredContacts_copyContact => 'Kopieer contact naar klembord';
+
+  @override
+  String get discoveredContacts_deleteContact => 'Contact verwijderen';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Verwijder alle ontdekte contacten';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Weet u zeker dat u alle ontdekte contacten wilt verwijderen?';
 }

lib/l10n/app_localizations_pl.dart

@@ -38,6 +38,9 @@ class AppLocalizationsPl extends AppLocalizations {
   @override
   String get common_delete => 'Usuń';
 
+  @override
+  String get common_deleteAll => 'Usuń wszystko';
+
   @override
   String get common_close => 'Zamknąć';
 
@@ -108,6 +111,92 @@ class AppLocalizationsPl extends AppLocalizations {
   @override
   String get scanner_title => 'MeshCore Open';
 
+  @override
+  String get connectionChoiceUsbLabel => 'USB';
+
+  @override
+  String get connectionChoiceBluetoothLabel => 'Bluetooth';
+
+  @override
+  String get usbScreenTitle => 'Połącz przez USB';
+
+  @override
+  String get usbScreenSubtitle =>
+      'Wybierz wykryty urządzenie szeregowe i podłącz je bezpośrednio do swojego węzła MeshCore.';
+
+  @override
+  String get usbScreenStatus => 'Wybierz urządzenie USB';
+
+  @override
+  String get usbScreenNote =>
+      'Port szeregowy USB jest aktywny na urządzeniach z systemem Android i platformach stacjonarnych, które go obsługują.';
+
+  @override
+  String get usbScreenEmptyState =>
+      'Nie znaleziono żadnych urządzeń USB. Podłącz jedno i zaktualizuj.';
+
+  @override
+  String get usbErrorPermissionDenied =>
+      'Zostało odrzucone żądanie dostępu przez USB.';
+
+  @override
+  String get usbErrorDeviceMissing =>
+      'Wybór urządzenia USB już nie jest dostępny.';
+
+  @override
+  String get usbErrorInvalidPort => 'Wybierz prawidłowe urządzenie USB.';
+
+  @override
+  String get usbErrorBusy =>
+      'Kolejne żądanie połączenia przez USB jest już w trakcie realizacji.';
+
+  @override
+  String get usbErrorNotConnected => 'Brak podłączonego urządzenia USB.';
+
+  @override
+  String get usbErrorOpenFailed =>
+      'Nie udało się otworzyć wybranego urządzenia USB.';
+
+  @override
+  String get usbErrorConnectFailed =>
+      'Nie udało się połączyć z wybranym urządzeniem USB.';
+
+  @override
+  String get usbErrorUnsupported =>
+      'Port szeregowy USB nie jest obsługiwany na tym urządzeniu.';
+
+  @override
+  String get usbErrorAlreadyActive => 'Połączenie USB jest już aktywne.';
+
+  @override
+  String get usbErrorNoDeviceSelected =>
+      'Nie został wybrany żaden urządzenie USB.';
+
+  @override
+  String get usbErrorPortClosed => 'Połączenie USB nie jest aktywne.';
+
+  @override
+  String get usbErrorConnectTimedOut =>
+      'Połączenie nie zostało nawiązane. Upewnij się, że urządzenie posiada oprogramowanie \"USB Companion\".';
+
+  @override
+  String get usbFallbackDeviceName =>
+      'Urządzenie do komunikacji przez sieć (seria)';
+
+  @override
+  String get usbStatus_notConnected => 'Wybierz urządzenie USB';
+
+  @override
+  String get usbStatus_connecting => 'Połączenie z urządzeniem USB...';
+
+  @override
+  String get usbStatus_searching => 'Wyszukiwanie urządzeń USB...';
+
+  @override
+  String usbConnectionFailed(String error) {
+    return 'Błąd połączenia USB: $error';
+  }
+
   @override
   String get scanner_scanning => 'Skanowanie urządzeń...';
 
@@ -150,6 +239,13 @@ class AppLocalizationsPl extends AppLocalizations {
   String get scanner_bluetoothOffMessage =>
       'Prosimy włączyć Bluetooth, aby przeskanować urządzenia.';
 
+  @override
+  String get scanner_chromeRequired => 'Wymagana przeglądarka Chrome';
+
+  @override
+  String get scanner_chromeRequiredMessage =>
+      'Ta aplikacja internetowa wymaga przeglądarki Google Chrome lub opartej na Chromium do obsługi Bluetooth.';
+
   @override
   String get scanner_enableBluetooth => 'Włącz Bluetooth';
 
@@ -235,6 +331,13 @@ class AppLocalizationsPl extends AppLocalizations {
   @override
   String get settings_longitude => 'Długość';
 
+  @override
+  String get settings_contactSettings => 'Ustawienia kontaktowe';
+
+  @override
+  String get settings_contactSettingsSubtitle =>
+      'Ustawienia dotyczące sposobu dodawania kontaktów';
+
   @override
   String get settings_privacyMode => 'Tryb Prywatny';
 
@@ -323,6 +426,10 @@ class AppLocalizationsPl extends AppLocalizations {
   String get settings_aboutDescription =>
       'Otwarty kod źródłowy klient Flutter dla urządzeń do sieci mesh LoRa MeshCore.';
 
+  @override
+  String get settings_aboutOpenMeteoAttribution =>
+      'Dane wysokościowe LOS: Open-Meteo (CC BY 4.0)';
+
   @override
   String get settings_infoName => 'Imię';
 
@@ -460,6 +567,13 @@ class AppLocalizationsPl extends AppLocalizations {
   @override
   String get appSettings_languageUk => 'Ukraińska';
 
+  @override
+  String get appSettings_enableMessageTracing => 'Włącz śledzenie wiadomości';
+
+  @override
+  String get appSettings_enableMessageTracingSubtitle =>
+      'Pokaż szczegółowe metadane trasowania i czasu dla wiadomości';
+
   @override
   String get appSettings_notifications => 'Powiadomienia';
 
@@ -621,6 +735,15 @@ class AppLocalizationsPl extends AppLocalizations {
   @override
   String get appSettings_offlineMapCache => 'Bufor Map Offline';
 
+  @override
+  String get appSettings_unitsTitle => 'Jednostki';
+
+  @override
+  String get appSettings_unitsMetric => 'Metryczne (m / km)';
+
+  @override
+  String get appSettings_unitsImperial => 'Imperialne (ft / mi)';
+
   @override
   String get appSettings_noAreaSelected => 'Nie zaznaczono żadnej powierzchni.';
 
@@ -658,7 +781,35 @@ class AppLocalizationsPl extends AppLocalizations {
       'Kontakty będą wyświetlane, gdy urządzenia reklamują się.';
 
   @override
-  String get contacts_searchContacts => 'Wyszukaj kontakty...';
+  String get contacts_unread => 'Nieprzeczytane';
+
+  @override
+  String get contacts_searchContactsNoNumber => 'Wyszukaj kontakty...';
+
+  @override
+  String contacts_searchContacts(int number, String str) {
+    return 'Wyszukaj kontakty...';
+  }
+
+  @override
+  String contacts_searchFavorites(int number, String str) {
+    return 'Wyszukaj $number$str ulubione...';
+  }
+
+  @override
+  String contacts_searchUsers(int number, String str) {
+    return 'Wyszukaj $number$str Użytkowników...';
+  }
+
+  @override
+  String contacts_searchRepeaters(int number, String str) {
+    return 'Wyszukaj $number$str powtórników...';
+  }
+
+  @override
+  String contacts_searchRoomServers(int number, String str) {
+    return 'Wyszukaj $number$str serwerów Room...';
+  }
 
   @override
   String get contacts_noUnreadContacts => 'Brak nieprzeczytanych kontaktów';
@@ -784,6 +935,12 @@ class AppLocalizationsPl extends AppLocalizations {
   @override
   String get channels_editChannel => 'Edytuj kanał';
 
+  @override
+  String get channels_muteChannel => 'Wycisz kanał';
+
+  @override
+  String get channels_unmuteChannel => 'Wyłącz wyciszenie kanału';
+
   @override
   String get channels_deleteChannel => 'Usuń kanał';
 
@@ -792,6 +949,11 @@ class AppLocalizationsPl extends AppLocalizations {
     return 'Usuń \"$name\"? Nie można tego cofnąć.';
   }
 
+  @override
+  String channels_channelDeleteFailed(String name) {
+    return 'Nie udało się usunąć kanału \"$name\"';
+  }
+
   @override
   String channels_channelDeleted(String name) {
     return 'Kanał \"$name\" usunięto';
@@ -1079,6 +1241,9 @@ class AppLocalizationsPl extends AppLocalizations {
   @override
   String get chat_pathManagement => 'Zarządzanie ścieżkami';
 
+  @override
+  String get chat_ShowAllPaths => 'Pokaż wszystkie ścieżki';
+
   @override
   String get chat_routingMode => 'Tryb routingu';
 
@@ -1238,6 +1403,12 @@ class AppLocalizationsPl extends AppLocalizations {
   @override
   String get map_title => 'Mapa węzłów';
 
+  @override
+  String get map_lineOfSight => 'Linia wzroku';
+
+  @override
+  String get map_losScreenTitle => 'Linia wzroku';
+
   @override
   String get map_noNodesWithLocation => 'Brak węzłów z danymi lokalizacyjnymi';
 
@@ -1355,6 +1526,13 @@ class AppLocalizationsPl extends AppLocalizations {
   @override
   String get map_showSharedMarkers => 'Pokaż współdzielone znaki.';
 
+  @override
+  String get map_showGuessedLocations =>
+      'Wyświetl lokalizacje zgadanych węzłów';
+
+  @override
+  String get map_guessedLocation => 'Wydana lokalizacja';
+
   @override
   String get map_lastSeenTime => 'Ostatni raz widiany';
 
@@ -1676,10 +1854,10 @@ class AppLocalizationsPl extends AppLocalizations {
   String get repeater_cliSubtitle => 'Wyślij polecenia do powielacza';
 
   @override
-  String get repeater_neighbours => 'Sąsiedzi';
+  String get repeater_neighbors => 'Sąsiedzi';
 
   @override
-  String get repeater_neighboursSubtitle =>
+  String get repeater_neighborsSubtitle =>
       'Wyświetl sąsiedztwo zerowych hopów.';
 
   @override
@@ -2375,7 +2553,7 @@ class AppLocalizationsPl extends AppLocalizations {
   }
 
   @override
-  String get neighbors_repeatersNeighbours => 'Powtarzacze Sąsiedzi';
+  String get neighbors_repeatersNeighbors => 'Powtarzacze Sąsiedzi';
 
   @override
   String get neighbors_noData => 'Brak danych dotyczących sąsiadów.';
@@ -2684,6 +2862,15 @@ class AppLocalizationsPl extends AppLocalizations {
   @override
   String get listFilter_all => 'Wszystko';
 
+  @override
+  String get listFilter_favorites => 'Ulubione';
+
+  @override
+  String get listFilter_addToFavorites => 'Dodaj do ulubionych';
+
+  @override
+  String get listFilter_removeFromFavorites => 'Usuń z ulubionych';
+
   @override
   String get listFilter_users => 'Użytkownicy';
 
@@ -2718,6 +2905,144 @@ class AppLocalizationsPl extends AppLocalizations {
   @override
   String get pathTrace_clearTooltip => 'Wyczyść ścieżkę';
 
+  @override
+  String get losSelectStartEnd => 'Wybierz węzły początkowe i końcowe dla LOS.';
+
+  @override
+  String losRunFailed(String error) {
+    return 'Sprawdzenie pola widzenia nie powiodło się: $error';
+  }
+
+  @override
+  String get losClearAllPoints => 'Wyczyść wszystkie punkty';
+
+  @override
+  String get losRunToViewElevationProfile =>
+      'Uruchom LOS, aby wyświetlić profil wysokości';
+
+  @override
+  String get losMenuTitle => 'Menu LOS';
+
+  @override
+  String get losMenuSubtitle =>
+      'Stuknij węzły lub naciśnij i przytrzymaj mapę, aby uzyskać niestandardowe punkty';
+
+  @override
+  String get losShowDisplayNodes => 'Pokaż węzły wyświetlające';
+
+  @override
+  String get losCustomPoints => 'Punkty niestandardowe';
+
+  @override
+  String losCustomPointLabel(int index) {
+    return 'Niestandardowe $index';
+  }
+
+  @override
+  String get losPointA => 'Punkt A';
+
+  @override
+  String get losPointB => 'Punkt B';
+
+  @override
+  String losAntennaA(String value, String unit) {
+    return 'Antena A: $value $unit';
+  }
+
+  @override
+  String losAntennaB(String value, String unit) {
+    return 'Antena B: $value $unit';
+  }
+
+  @override
+  String get losRun => 'Uruchom LOS-a';
+
+  @override
+  String get losNoElevationData => 'Brak danych o wysokości';
+
+  @override
+  String losProfileClear(
+    String distance,
+    String distanceUnit,
+    String clearance,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, czysty LOS, minimalny prześwit $clearance $heightUnit';
+  }
+
+  @override
+  String losProfileBlocked(
+    String distance,
+    String distanceUnit,
+    String obstruction,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, zablokowane przez $obstruction $heightUnit';
+  }
+
+  @override
+  String get losStatusChecking => 'LOS: sprawdzam...';
+
+  @override
+  String get losStatusNoData => 'LOS: brak danych';
+
+  @override
+  String losStatusSummary(int clear, int total, int blocked, int unknown) {
+    return 'LOS: $clear/$total jasne, $blocked zablokowane, $unknown nieznane';
+  }
+
+  @override
+  String get losErrorElevationUnavailable =>
+      'Dane dotyczące wysokości są niedostępne dla jednej lub większej liczby próbek.';
+
+  @override
+  String get losErrorInvalidInput =>
+      'Nieprawidłowe dane punktów/wysokości do obliczenia LOS.';
+
+  @override
+  String get losRenameCustomPoint => 'Zmień nazwę punktu niestandardowego';
+
+  @override
+  String get losPointName => 'Nazwa punktu';
+
+  @override
+  String get losShowPanelTooltip => 'Pokaż panel LOS';
+
+  @override
+  String get losHidePanelTooltip => 'Ukryj panel LOS';
+
+  @override
+  String get losElevationAttribution =>
+      'Dane dotyczące wysokości: Open-Meteo (CC BY 4.0)';
+
+  @override
+  String get losLegendRadioHorizon => 'Horyzont radiowy';
+
+  @override
+  String get losLegendLosBeam => 'Linia widoczności';
+
+  @override
+  String get losLegendTerrain => 'Teren';
+
+  @override
+  String get losFrequencyLabel => 'Częstotliwość';
+
+  @override
+  String get losFrequencyInfoTooltip => 'Zobacz szczegóły obliczenia';
+
+  @override
+  String get losFrequencyDialogTitle => 'Obliczanie horyzontu radiowego';
+
+  @override
+  String losFrequencyDialogDescription(
+    double baselineK,
+    double baselineFreq,
+    double frequencyMHz,
+    double kFactor,
+  ) {
+    return 'Zaczynając od k=$baselineK przy $baselineFreq MHz, obliczenia korygują współczynnik k dla bieżącego pasma $frequencyMHz MHz, które definiuje zakrzywiony limit horyzontu radiowego.';
+  }
+
   @override
   String get contacts_pathTrace => 'Śledzenie Ścieżek';
 
@@ -2895,4 +3220,88 @@ class AppLocalizationsPl extends AppLocalizations {
   @override
   String get settings_gpxExportShareSubject =>
       'Eksport danych mapy GPX meshcore-open';
+
+  @override
+  String get snrIndicator_nearByRepeaters => 'Nadajniki w pobliżu';
+
+  @override
+  String get snrIndicator_lastSeen => 'Ostatnio widziany';
+
+  @override
+  String get contactsSettings_title => 'Ustawienia kontaktów';
+
+  @override
+  String get contactsSettings_autoAddTitle => 'Automatyczne odnajdywanie';
+
+  @override
+  String get contactsSettings_otherTitle =>
+      'Inne ustawienia związane z kontaktami';
+
+  @override
+  String get contactsSettings_autoAddUsersTitle =>
+      'Automatycznie dodaj użytkowników';
+
+  @override
+  String get contactsSettings_autoAddUsersSubtitle =>
+      'Pozwól towarzyszowi automatycznie dodawać znalezione użytkowników.';
+
+  @override
+  String get contactsSettings_autoAddRepeatersTitle =>
+      'Automatyczne dodawanie powtarzalników';
+
+  @override
+  String get contactsSettings_autoAddRepeatersSubtitle =>
+      'Zezwól na automatyczne dodawanie odkrytych repeaterów przez towarzysza.';
+
+  @override
+  String get contactsSettings_autoAddRoomServersTitle =>
+      'Automatycznie dodaj serwery pokojowe';
+
+  @override
+  String get contactsSettings_autoAddRoomServersSubtitle =>
+      'Zezwól towarzyszowi na automatyczne dodawanie znalezionych serwerów pokojowych.';
+
+  @override
+  String get contactsSettings_autoAddSensorsTitle =>
+      'Automatycznie dodaj czujniki';
+
+  @override
+  String get contactsSettings_autoAddSensorsSubtitle =>
+      'Zezwól towarzyszowi na automatyczne dodawanie wykrytych czujników.';
+
+  @override
+  String get contactsSettings_overwriteOldestTitle => 'Nadpisz najstarszy';
+
+  @override
+  String get contactsSettings_overwriteOldestSubtitle =>
+      'Gdy lista kontaktów jest pełna, najstarszy nieulubiony kontakt zostanie zastąpiony.';
+
+  @override
+  String get discoveredContacts_Title => 'Odkryte Kontakty';
+
+  @override
+  String get discoveredContacts_noMatching => 'Brak pasujących kontaktów';
+
+  @override
+  String get discoveredContacts_searchHint => 'Wyszukaj odkryte kontakty';
+
+  @override
+  String get discoveredContacts_contactAdded => 'Kontakt dodany';
+
+  @override
+  String get discoveredContacts_addContact => 'Dodaj kontakt';
+
+  @override
+  String get discoveredContacts_copyContact => 'Kopiuj kontakt do schowka';
+
+  @override
+  String get discoveredContacts_deleteContact => 'Usuń kontakt';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Usuń wszystkie odkryte kontakty';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Czy na pewno chcesz usunąć wszystkie znalezione kontakty?';
 }

lib/l10n/app_localizations_pt.dart

@@ -38,6 +38,9 @@ class AppLocalizationsPt extends AppLocalizations {
   @override
   String get common_delete => 'Excluir';
 
+  @override
+  String get common_deleteAll => 'Excluir Tudo';
+
   @override
   String get common_close => 'Fechar';
 
@@ -108,6 +111,91 @@ class AppLocalizationsPt extends AppLocalizations {
   @override
   String get scanner_title => 'MeshCore Open';
 
+  @override
+  String get connectionChoiceUsbLabel => 'USB';
+
+  @override
+  String get connectionChoiceBluetoothLabel => 'Bluetooth';
+
+  @override
+  String get usbScreenTitle => 'Conecte via USB';
+
+  @override
+  String get usbScreenSubtitle =>
+      'Selecione um dispositivo serial detectado e conecte-o diretamente ao seu nó MeshCore.';
+
+  @override
+  String get usbScreenStatus => 'Selecione um dispositivo USB';
+
+  @override
+  String get usbScreenNote =>
+      'A comunicação serial via USB está ativa em dispositivos Android e plataformas de desktop compatíveis.';
+
+  @override
+  String get usbScreenEmptyState =>
+      'Nenhum dispositivo USB encontrado. Conecte um e atualize.';
+
+  @override
+  String get usbErrorPermissionDenied =>
+      'A permissão para acesso via USB foi negada.';
+
+  @override
+  String get usbErrorDeviceMissing =>
+      'O dispositivo USB selecionado não está mais disponível.';
+
+  @override
+  String get usbErrorInvalidPort => 'Selecione um dispositivo USB válido.';
+
+  @override
+  String get usbErrorBusy =>
+      'Já existe uma solicitação de conexão USB em andamento.';
+
+  @override
+  String get usbErrorNotConnected => 'Não há nenhum dispositivo USB conectado.';
+
+  @override
+  String get usbErrorOpenFailed =>
+      'Não foi possível abrir o dispositivo USB selecionado.';
+
+  @override
+  String get usbErrorConnectFailed =>
+      'Não foi possível conectar ao dispositivo USB selecionado.';
+
+  @override
+  String get usbErrorUnsupported =>
+      'A comunicação serial via USB não é suportada nesta plataforma.';
+
+  @override
+  String get usbErrorAlreadyActive => 'A conexão USB já está ativa.';
+
+  @override
+  String get usbErrorNoDeviceSelected =>
+      'Nenhum dispositivo USB foi selecionado.';
+
+  @override
+  String get usbErrorPortClosed => 'A conexão USB não está ativa.';
+
+  @override
+  String get usbErrorConnectTimedOut =>
+      'A conexão expirou. Verifique se o dispositivo possui o firmware USB Companion.';
+
+  @override
+  String get usbFallbackDeviceName => 'Dispositivo de Serial para a Web';
+
+  @override
+  String get usbStatus_notConnected => 'Selecione um dispositivo USB';
+
+  @override
+  String get usbStatus_connecting => 'Conectando ao dispositivo USB...';
+
+  @override
+  String get usbStatus_searching => 'Procurando por dispositivos USB...';
+
+  @override
+  String usbConnectionFailed(String error) {
+    return 'Falha na conexão USB: $error';
+  }
+
   @override
   String get scanner_scanning => 'Procurando por dispositivos...';
 
@@ -150,6 +238,13 @@ class AppLocalizationsPt extends AppLocalizations {
   String get scanner_bluetoothOffMessage =>
       'Por favor, ative o Bluetooth para escanear por dispositivos.';
 
+  @override
+  String get scanner_chromeRequired => 'Navegador Chrome necessário';
+
+  @override
+  String get scanner_chromeRequiredMessage =>
+      'Esta aplicação web requer o Google Chrome ou um navegador baseado no Chromium para suporte de Bluetooth.';
+
   @override
   String get scanner_enableBluetooth => 'Ative o Bluetooth';
 
@@ -234,6 +329,13 @@ class AppLocalizationsPt extends AppLocalizations {
   @override
   String get settings_longitude => 'Longitude';
 
+  @override
+  String get settings_contactSettings => 'Configurações de Contato';
+
+  @override
+  String get settings_contactSettingsSubtitle =>
+      'Configurações para como os contatos são adicionados';
+
   @override
   String get settings_privacyMode => 'Modo de Privacidade';
 
@@ -324,6 +426,10 @@ class AppLocalizationsPt extends AppLocalizations {
   String get settings_aboutDescription =>
       'Um cliente Flutter de código aberto para dispositivos de rede mesh LoRa Core da MeshCore.';
 
+  @override
+  String get settings_aboutOpenMeteoAttribution =>
+      'Dados de elevação LOS: Open-Meteo (CC BY 4.0)';
+
   @override
   String get settings_infoName => 'Nome';
 
@@ -460,6 +566,14 @@ class AppLocalizationsPt extends AppLocalizations {
   @override
   String get appSettings_languageUk => 'Ucraniano';
 
+  @override
+  String get appSettings_enableMessageTracing =>
+      'Ativar rastreamento de mensagens';
+
+  @override
+  String get appSettings_enableMessageTracingSubtitle =>
+      'Mostrar metadados detalhados de roteamento e tempo para as mensagens';
+
   @override
   String get appSettings_notifications => 'Notificações';
 
@@ -620,6 +734,15 @@ class AppLocalizationsPt extends AppLocalizations {
   @override
   String get appSettings_offlineMapCache => 'Cache de Mapa Offline';
 
+  @override
+  String get appSettings_unitsTitle => 'Unidades';
+
+  @override
+  String get appSettings_unitsMetric => 'Métrico (m/km)';
+
+  @override
+  String get appSettings_unitsImperial => 'Imperial (ft/mi)';
+
   @override
   String get appSettings_noAreaSelected => 'Nenhuma área selecionada';
 
@@ -658,7 +781,35 @@ class AppLocalizationsPt extends AppLocalizations {
       'Os contatos serão exibidos quando os dispositivos anunciarem.';
 
   @override
-  String get contacts_searchContacts => 'Pesquisar contatos...';
+  String get contacts_unread => 'Não lido';
+
+  @override
+  String get contacts_searchContactsNoNumber => 'Pesquisar Contatos...';
+
+  @override
+  String contacts_searchContacts(int number, String str) {
+    return 'Pesquisar contatos...';
+  }
+
+  @override
+  String contacts_searchFavorites(int number, String str) {
+    return 'Pesquisar $number$str Favoritos...';
+  }
+
+  @override
+  String contacts_searchUsers(int number, String str) {
+    return 'Pesquisar $number$str Usuários...';
+  }
+
+  @override
+  String contacts_searchRepeaters(int number, String str) {
+    return 'Pesquisar $number$str Repetidores...';
+  }
+
+  @override
+  String contacts_searchRoomServers(int number, String str) {
+    return 'Pesquisar $number$str servidores de sala...';
+  }
 
   @override
   String get contacts_noUnreadContacts => 'Sem contatos não lidos.';
@@ -784,6 +935,12 @@ class AppLocalizationsPt extends AppLocalizations {
   @override
   String get channels_editChannel => 'Editar canal';
 
+  @override
+  String get channels_muteChannel => 'Silenciar canal';
+
+  @override
+  String get channels_unmuteChannel => 'Ativar canal';
+
   @override
   String get channels_deleteChannel => 'Excluir canal';
 
@@ -792,6 +949,11 @@ class AppLocalizationsPt extends AppLocalizations {
     return 'Excluir \"$name\"? Não pode ser desfeito.';
   }
 
+  @override
+  String channels_channelDeleteFailed(String name) {
+    return 'Falha ao excluir o canal \"$name\"';
+  }
+
   @override
   String channels_channelDeleted(String name) {
     return 'Canal \"$name\" excluído';
@@ -1079,6 +1241,9 @@ class AppLocalizationsPt extends AppLocalizations {
   @override
   String get chat_pathManagement => 'Gerenciamento de Caminhos';
 
+  @override
+  String get chat_ShowAllPaths => 'Mostrar todos os caminhos';
+
   @override
   String get chat_routingMode => 'Modo de roteamento';
 
@@ -1237,6 +1402,12 @@ class AppLocalizationsPt extends AppLocalizations {
   @override
   String get map_title => 'Mapa de Nós';
 
+  @override
+  String get map_lineOfSight => 'Linha de visão';
+
+  @override
+  String get map_losScreenTitle => 'Linha de visão';
+
   @override
   String get map_noNodesWithLocation =>
       'Não existem nós com dados de localização.';
@@ -1355,6 +1526,13 @@ class AppLocalizationsPt extends AppLocalizations {
   @override
   String get map_showSharedMarkers => 'Mostrar marcadores compartilhados';
 
+  @override
+  String get map_showGuessedLocations =>
+      'Mostrar as localizações dos nós estimados';
+
+  @override
+  String get map_guessedLocation => 'Localização estimada';
+
   @override
   String get map_lastSeenTime => 'Último Tempo de Visualização';
 
@@ -1674,11 +1852,10 @@ class AppLocalizationsPt extends AppLocalizations {
   String get repeater_cliSubtitle => 'Enviar comandos ao repetidor';
 
   @override
-  String get repeater_neighbours => 'Vizinhos';
+  String get repeater_neighbors => 'Vizinhos';
 
   @override
-  String get repeater_neighboursSubtitle =>
+  String get repeater_neighborsSubtitle => 'Visualizar vizinhos de salto zero.';
-      'Visualizar vizinhos de salto zero.';
 
   @override
   String get repeater_settings => 'Configurações';
@@ -2377,7 +2554,7 @@ class AppLocalizationsPt extends AppLocalizations {
   }
 
   @override
-  String get neighbors_repeatersNeighbours => 'Repetidores Vizinhos';
+  String get neighbors_repeatersNeighbors => 'Repetidores Vizinhos';
 
   @override
   String get neighbors_noData => 'Não estão disponíveis dados de vizinhos.';
@@ -2687,6 +2864,15 @@ class AppLocalizationsPt extends AppLocalizations {
   @override
   String get listFilter_all => 'Tudo';
 
+  @override
+  String get listFilter_favorites => 'Favoritos';
+
+  @override
+  String get listFilter_addToFavorites => 'Adicionar aos favoritos';
+
+  @override
+  String get listFilter_removeFromFavorites => 'Remover da lista de favoritos';
+
   @override
   String get listFilter_users => 'Usuários';
 
@@ -2721,6 +2907,144 @@ class AppLocalizationsPt extends AppLocalizations {
   @override
   String get pathTrace_clearTooltip => 'Limpar caminho';
 
+  @override
+  String get losSelectStartEnd => 'Selecione nós iniciais e finais para LOS.';
+
+  @override
+  String losRunFailed(String error) {
+    return 'Falha na verificação da linha de visão: $error';
+  }
+
+  @override
+  String get losClearAllPoints => 'Limpe todos os pontos';
+
+  @override
+  String get losRunToViewElevationProfile =>
+      'Execute o LOS para visualizar o perfil de elevação';
+
+  @override
+  String get losMenuTitle => 'Menu LOS';
+
+  @override
+  String get losMenuSubtitle =>
+      'Toque nos nós ou mantenha pressionado o mapa para obter pontos personalizados';
+
+  @override
+  String get losShowDisplayNodes => 'Mostrar nós de exibição';
+
+  @override
+  String get losCustomPoints => 'Pontos personalizados';
+
+  @override
+  String losCustomPointLabel(int index) {
+    return '$index personalizado';
+  }
+
+  @override
+  String get losPointA => 'Ponto A';
+
+  @override
+  String get losPointB => 'Ponto B';
+
+  @override
+  String losAntennaA(String value, String unit) {
+    return 'Antena A: $value $unit';
+  }
+
+  @override
+  String losAntennaB(String value, String unit) {
+    return 'Antena B: $value $unit';
+  }
+
+  @override
+  String get losRun => 'Executar LOS';
+
+  @override
+  String get losNoElevationData => 'Sem dados de elevação';
+
+  @override
+  String losProfileClear(
+    String distance,
+    String distanceUnit,
+    String clearance,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, limpar LOS, liberação mínima $clearance $heightUnit';
+  }
+
+  @override
+  String losProfileBlocked(
+    String distance,
+    String distanceUnit,
+    String obstruction,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, bloqueado por $obstruction $heightUnit';
+  }
+
+  @override
+  String get losStatusChecking => 'LOS: verificando...';
+
+  @override
+  String get losStatusNoData => 'LOS: sem dados';
+
+  @override
+  String losStatusSummary(int clear, int total, int blocked, int unknown) {
+    return 'LOS: $clear/$total limpo, $blocked bloqueado, $unknown desconhecido';
+  }
+
+  @override
+  String get losErrorElevationUnavailable =>
+      'Dados de elevação indisponíveis para uma ou mais amostras.';
+
+  @override
+  String get losErrorInvalidInput =>
+      'Dados de pontos/elevação inválidos para cálculo de LOS.';
+
+  @override
+  String get losRenameCustomPoint => 'Renomear ponto personalizado';
+
+  @override
+  String get losPointName => 'Nome do ponto';
+
+  @override
+  String get losShowPanelTooltip => 'Mostrar painel LOS';
+
+  @override
+  String get losHidePanelTooltip => 'Ocultar painel LOS';
+
+  @override
+  String get losElevationAttribution =>
+      'Dados de elevação: Open-Meteo (CC BY 4.0)';
+
+  @override
+  String get losLegendRadioHorizon => 'Horizonte de rádio';
+
+  @override
+  String get losLegendLosBeam => 'Linha de visada';
+
+  @override
+  String get losLegendTerrain => 'Terreno';
+
+  @override
+  String get losFrequencyLabel => 'Frequência';
+
+  @override
+  String get losFrequencyInfoTooltip => 'Ver detalhes do cálculo';
+
+  @override
+  String get losFrequencyDialogTitle => 'Cálculo do horizonte de rádio';
+
+  @override
+  String losFrequencyDialogDescription(
+    double baselineK,
+    double baselineFreq,
+    double frequencyMHz,
+    double kFactor,
+  ) {
+    return 'Começando em k=$baselineK em $baselineFreq MHz, o cálculo ajusta o fator k para a banda atual de $frequencyMHz MHz, que define o limite do horizonte de rádio curvo.';
+  }
+
   @override
   String get contacts_pathTrace => 'Traçado de Caminho';
 
@@ -2890,4 +3214,90 @@ class AppLocalizationsPt extends AppLocalizations {
   @override
   String get settings_gpxExportShareSubject =>
       'meshcore-open exportação de dados de mapa GPX';
+
+  @override
+  String get snrIndicator_nearByRepeaters => 'Repetidores Próximos';
+
+  @override
+  String get snrIndicator_lastSeen => 'Visto pela última vez';
+
+  @override
+  String get contactsSettings_title => 'Configurações de contatos';
+
+  @override
+  String get contactsSettings_autoAddTitle => 'Descoberta Automática';
+
+  @override
+  String get contactsSettings_otherTitle =>
+      'Outras configurações relacionadas a contatos';
+
+  @override
+  String get contactsSettings_autoAddUsersTitle =>
+      'Adicionar usuários automaticamente';
+
+  @override
+  String get contactsSettings_autoAddUsersSubtitle =>
+      'Permitir que o companheiro adicione automaticamente os usuários descobertos.';
+
+  @override
+  String get contactsSettings_autoAddRepeatersTitle =>
+      'Adicionar repetidores automaticamente';
+
+  @override
+  String get contactsSettings_autoAddRepeatersSubtitle =>
+      'Permitir que o companheiro adicione automaticamente os repetidores descobertos.';
+
+  @override
+  String get contactsSettings_autoAddRoomServersTitle =>
+      'Adicionar automaticamente servidores de sala';
+
+  @override
+  String get contactsSettings_autoAddRoomServersSubtitle =>
+      'Permitir que o companheiro adicione automaticamente os servidores de salas descobertos.';
+
+  @override
+  String get contactsSettings_autoAddSensorsTitle =>
+      'Adicionar sensores automaticamente';
+
+  @override
+  String get contactsSettings_autoAddSensorsSubtitle =>
+      'Permitir que o companheiro adicione automaticamente sensores descobertos.';
+
+  @override
+  String get contactsSettings_overwriteOldestTitle =>
+      'Sobrescrever o Mais Antigo';
+
+  @override
+  String get contactsSettings_overwriteOldestSubtitle =>
+      'Quando a lista de contatos estiver cheia, o contato mais antigo não favoritado será substituído.';
+
+  @override
+  String get discoveredContacts_Title => 'Contatos Descobertos';
+
+  @override
+  String get discoveredContacts_noMatching => 'Nenhum contato correspondente';
+
+  @override
+  String get discoveredContacts_searchHint => 'Pesquisar contatos descobertos';
+
+  @override
+  String get discoveredContacts_contactAdded => 'Contato adicionado';
+
+  @override
+  String get discoveredContacts_addContact => 'Adicionar Contato';
+
+  @override
+  String get discoveredContacts_copyContact =>
+      'Copiar Contato para a área de transferência';
+
+  @override
+  String get discoveredContacts_deleteContact => 'Excluir Contato';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Excluir Todos os Contatos Descobertos';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Tem certeza de que deseja excluir todos os contatos descobertos?';
 }

lib/l10n/app_localizations_ru.dart

@@ -38,6 +38,9 @@ class AppLocalizationsRu extends AppLocalizations {
   @override
   String get common_delete => 'Удалить';
 
+  @override
+  String get common_deleteAll => 'Удалить все';
+
   @override
   String get common_close => 'Закрыть';
 
@@ -108,6 +111,92 @@ class AppLocalizationsRu extends AppLocalizations {
   @override
   String get scanner_title => 'MeshCore Open';
 
+  @override
+  String get connectionChoiceUsbLabel => 'USB';
+
+  @override
+  String get connectionChoiceBluetoothLabel => 'Bluetooth';
+
+  @override
+  String get usbScreenTitle => 'Подключение через USB';
+
+  @override
+  String get usbScreenSubtitle =>
+      'Выберите обнаруженное устройство с последовательным интерфейсом и подключите его напрямую к вашему узлу MeshCore.';
+
+  @override
+  String get usbScreenStatus => 'Выберите USB-устройство';
+
+  @override
+  String get usbScreenNote =>
+      'USB-серийный порт активен на поддерживаемых устройствах Android и на настольных платформах.';
+
+  @override
+  String get usbScreenEmptyState =>
+      'Не обнаружено устройств USB. Подключите одно из них и обновите список.';
+
+  @override
+  String get usbErrorPermissionDenied =>
+      'Запрос на доступ через USB был отклонен.';
+
+  @override
+  String get usbErrorDeviceMissing =>
+      'Выбранное USB-устройство больше недоступно.';
+
+  @override
+  String get usbErrorInvalidPort => 'Выберите действительное USB-устройство.';
+
+  @override
+  String get usbErrorBusy =>
+      'Еще одно запрошенное соединение через USB уже находится в процессе.';
+
+  @override
+  String get usbErrorNotConnected => 'Ни одно USB-устройство не подключено.';
+
+  @override
+  String get usbErrorOpenFailed =>
+      'Не удалось открыть выбранное USB-устройство.';
+
+  @override
+  String get usbErrorConnectFailed =>
+      'Не удалось установить соединение с выбранным USB-устройством.';
+
+  @override
+  String get usbErrorUnsupported =>
+      'Поддержка последовательного USB отсутствует на данной платформе.';
+
+  @override
+  String get usbErrorAlreadyActive => 'USB-соединение уже установлено.';
+
+  @override
+  String get usbErrorNoDeviceSelected =>
+      'Не было выбрано ни одно устройство USB.';
+
+  @override
+  String get usbErrorPortClosed => 'USB-соединение не установлено.';
+
+  @override
+  String get usbErrorConnectTimedOut =>
+      'Соединение не установлено. Убедитесь, что устройство имеет установленное программное обеспечение USB Companion.';
+
+  @override
+  String get usbFallbackDeviceName =>
+      'Устройство для последовательного подключения к сети';
+
+  @override
+  String get usbStatus_notConnected => 'Выберите USB-устройство';
+
+  @override
+  String get usbStatus_connecting => 'Подключение к USB-устройству...';
+
+  @override
+  String get usbStatus_searching => 'Поиск USB-устройств...';
+
+  @override
+  String usbConnectionFailed(String error) {
+    return 'Не удалось установить соединение через USB: $error';
+  }
+
   @override
   String get scanner_scanning => 'Поиск устройств...';
 
@@ -149,6 +238,13 @@ class AppLocalizationsRu extends AppLocalizations {
   String get scanner_bluetoothOffMessage =>
       'Пожалуйста, включите Bluetooth, чтобы найти устройства.';
 
+  @override
+  String get scanner_chromeRequired => 'Требуется браузер Chrome';
+
+  @override
+  String get scanner_chromeRequiredMessage =>
+      'Для поддержки Bluetooth в этом веб-приложении требуется Google Chrome или браузер на базе Chromium.';
+
   @override
   String get scanner_enableBluetooth => 'Включите Bluetooth';
 
@@ -232,6 +328,13 @@ class AppLocalizationsRu extends AppLocalizations {
   @override
   String get settings_longitude => 'Долгота';
 
+  @override
+  String get settings_contactSettings => 'Настройки контактов';
+
+  @override
+  String get settings_contactSettingsSubtitle =>
+      'Настройки добавления контактов';
+
   @override
   String get settings_privacyMode => 'Режим конфиденциальности';
 
@@ -321,6 +424,10 @@ class AppLocalizationsRu extends AppLocalizations {
   String get settings_aboutDescription =>
       'Открытое клиентское приложение на Flutter для устройств MeshCore с LoRa-сетями.';
 
+  @override
+  String get settings_aboutOpenMeteoAttribution =>
+      'Данные о высоте LOS: Open-Meteo (CC BY 4.0)';
+
   @override
   String get settings_infoName => 'Имя';
 
@@ -458,6 +565,14 @@ class AppLocalizationsRu extends AppLocalizations {
   @override
   String get appSettings_languageUk => 'Українська';
 
+  @override
+  String get appSettings_enableMessageTracing =>
+      'Включить трассировку сообщений';
+
+  @override
+  String get appSettings_enableMessageTracingSubtitle =>
+      'Показывать подробные метаданные о маршрутизации и времени для сообщений';
+
   @override
   String get appSettings_notifications => 'Уведомления';
 
@@ -620,6 +735,15 @@ class AppLocalizationsRu extends AppLocalizations {
   @override
   String get appSettings_offlineMapCache => 'Кэш офлайн-карты';
 
+  @override
+  String get appSettings_unitsTitle => 'Единицы';
+
+  @override
+  String get appSettings_unitsMetric => 'Метрическая (м/км)';
+
+  @override
+  String get appSettings_unitsImperial => 'Имперская (ft / mi)';
+
   @override
   String get appSettings_noAreaSelected => 'Область не выбрана';
 
@@ -657,7 +781,35 @@ class AppLocalizationsRu extends AppLocalizations {
       'Контакты появятся, когда устройства начнут рассылать оповещения';
 
   @override
-  String get contacts_searchContacts => 'Поиск контактов...';
+  String get contacts_unread => 'Непрочитанное';
+
+  @override
+  String get contacts_searchContactsNoNumber => 'Поиск контактов...';
+
+  @override
+  String contacts_searchContacts(int number, String str) {
+    return 'Поиск контактов...';
+  }
+
+  @override
+  String contacts_searchFavorites(int number, String str) {
+    return 'Поиск $number$str избранного...';
+  }
+
+  @override
+  String contacts_searchUsers(int number, String str) {
+    return 'Поиск $number$str пользователей...';
+  }
+
+  @override
+  String contacts_searchRepeaters(int number, String str) {
+    return 'Поиск $number$str ретрансляторов...';
+  }
+
+  @override
+  String contacts_searchRoomServers(int number, String str) {
+    return 'Поиск $number$str серверов комнат...';
+  }
 
   @override
   String get contacts_noUnreadContacts => 'Нет непрочитанных контактов';
@@ -782,6 +934,12 @@ class AppLocalizationsRu extends AppLocalizations {
   @override
   String get channels_editChannel => 'Изменить канал';
 
+  @override
+  String get channels_muteChannel => 'Отключить уведомления канала';
+
+  @override
+  String get channels_unmuteChannel => 'Включить уведомления канала';
+
   @override
   String get channels_deleteChannel => 'Удалить канал';
 
@@ -790,6 +948,11 @@ class AppLocalizationsRu extends AppLocalizations {
     return 'Удалить \"$name\"? Это действие нельзя отменить.';
   }
 
+  @override
+  String channels_channelDeleteFailed(String name) {
+    return 'Не удалось удалить канал $name.';
+  }
+
   @override
   String channels_channelDeleted(String name) {
     return 'Канал \"$name\" удалён';
@@ -1077,6 +1240,9 @@ class AppLocalizationsRu extends AppLocalizations {
   @override
   String get chat_pathManagement => 'Управление маршрутами';
 
+  @override
+  String get chat_ShowAllPaths => 'Показать все пути';
+
   @override
   String get chat_routingMode => 'Режим маршрутизации';
 
@@ -1239,6 +1405,12 @@ class AppLocalizationsRu extends AppLocalizations {
   @override
   String get map_title => 'Карта нод';
 
+  @override
+  String get map_lineOfSight => 'Линия видимости';
+
+  @override
+  String get map_losScreenTitle => 'Линия видимости';
+
   @override
   String get map_noNodesWithLocation => 'Нет нод с данными о местоположении';
 
@@ -1356,6 +1528,13 @@ class AppLocalizationsRu extends AppLocalizations {
   @override
   String get map_showSharedMarkers => 'Показывать общие метки';
 
+  @override
+  String get map_showGuessedLocations =>
+      'Отобразить предполагаемые места расположения узлов';
+
+  @override
+  String get map_guessedLocation => 'Угаданное место';
+
   @override
   String get map_lastSeenTime => 'Время последнего появления';
 
@@ -1676,10 +1855,10 @@ class AppLocalizationsRu extends AppLocalizations {
   String get repeater_cliSubtitle => 'Отправка команд репитеру';
 
   @override
-  String get repeater_neighbours => 'Соседи';
+  String get repeater_neighbors => 'Соседи';
 
   @override
-  String get repeater_neighboursSubtitle => 'Просмотр соседей на нулевом хопе.';
+  String get repeater_neighborsSubtitle => 'Просмотр соседей на нулевом хопе.';
 
   @override
   String get repeater_settings => 'Настройки';
@@ -2379,7 +2558,7 @@ class AppLocalizationsRu extends AppLocalizations {
   }
 
   @override
-  String get neighbors_repeatersNeighbours => 'Соседи репитеров';
+  String get neighbors_repeatersNeighbors => 'Соседи репитеров';
 
   @override
   String get neighbors_noData => 'Данные о соседях недоступны.';
@@ -2689,6 +2868,15 @@ class AppLocalizationsRu extends AppLocalizations {
   @override
   String get listFilter_all => 'Все';
 
+  @override
+  String get listFilter_favorites => 'Избранное';
+
+  @override
+  String get listFilter_addToFavorites => 'Добавить в избранное';
+
+  @override
+  String get listFilter_removeFromFavorites => 'Удалить из избранного';
+
   @override
   String get listFilter_users => 'Пользователи';
 
@@ -2723,6 +2911,144 @@ class AppLocalizationsRu extends AppLocalizations {
   @override
   String get pathTrace_clearTooltip => 'Очистить путь';
 
+  @override
+  String get losSelectStartEnd => 'Выберите начальный и конечный узлы для LOS.';
+
+  @override
+  String losRunFailed(String error) {
+    return 'Проверка прямой видимости не удалась: $error';
+  }
+
+  @override
+  String get losClearAllPoints => 'Очистить все точки';
+
+  @override
+  String get losRunToViewElevationProfile =>
+      'Запустите LOS, чтобы просмотреть профиль высот.';
+
+  @override
+  String get losMenuTitle => 'ЛОС Меню';
+
+  @override
+  String get losMenuSubtitle =>
+      'Коснитесь узлов или нажмите и удерживайте карту для выбора пользовательских точек.';
+
+  @override
+  String get losShowDisplayNodes => 'Показать узлы отображения';
+
+  @override
+  String get losCustomPoints => 'Пользовательские точки';
+
+  @override
+  String losCustomPointLabel(int index) {
+    return 'Пользовательский $index';
+  }
+
+  @override
+  String get losPointA => 'Точка А';
+
+  @override
+  String get losPointB => 'Точка Б';
+
+  @override
+  String losAntennaA(String value, String unit) {
+    return 'Антенна А: $value $unit';
+  }
+
+  @override
+  String losAntennaB(String value, String unit) {
+    return 'Антенна Б: $value $unit';
+  }
+
+  @override
+  String get losRun => 'Запустить ЛОС';
+
+  @override
+  String get losNoElevationData => 'Нет данных о высоте';
+
+  @override
+  String losProfileClear(
+    String distance,
+    String distanceUnit,
+    String clearance,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, свободная зона видимости, минимальный зазор $clearance $heightUnit';
+  }
+
+  @override
+  String losProfileBlocked(
+    String distance,
+    String distanceUnit,
+    String obstruction,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, заблокирован $obstruction $heightUnit';
+  }
+
+  @override
+  String get losStatusChecking => 'ЛОС: проверяю...';
+
+  @override
+  String get losStatusNoData => 'ЛОС: нет данных';
+
+  @override
+  String losStatusSummary(int clear, int total, int blocked, int unknown) {
+    return 'LOS: $clear/$total очищено, $blocked заблокировано, $unknown неизвестно.';
+  }
+
+  @override
+  String get losErrorElevationUnavailable =>
+      'Данные о высоте недоступны для одного или нескольких образцов.';
+
+  @override
+  String get losErrorInvalidInput =>
+      'Неверные данные о точках/высоте для расчета LOS.';
+
+  @override
+  String get losRenameCustomPoint => 'Переименовать пользовательскую точку';
+
+  @override
+  String get losPointName => 'Имя точки';
+
+  @override
+  String get losShowPanelTooltip => 'Показать панель LOS';
+
+  @override
+  String get losHidePanelTooltip => 'Скрыть панель LOS';
+
+  @override
+  String get losElevationAttribution =>
+      'Данные о высоте: Open-Meteo (CC BY 4.0)';
+
+  @override
+  String get losLegendRadioHorizon => 'Радиогоризонт';
+
+  @override
+  String get losLegendLosBeam => 'Линия прямой видимости';
+
+  @override
+  String get losLegendTerrain => 'Рельеф';
+
+  @override
+  String get losFrequencyLabel => 'Частота';
+
+  @override
+  String get losFrequencyInfoTooltip => 'Просмотреть детали расчёта';
+
+  @override
+  String get losFrequencyDialogTitle => 'Расчёт радиогоризонта';
+
+  @override
+  String losFrequencyDialogDescription(
+    double baselineK,
+    double baselineFreq,
+    double frequencyMHz,
+    double kFactor,
+  ) {
+    return 'Начиная с k=$baselineK на частоте $baselineFreq МГц, расчет корректирует коэффициент k для текущего диапазона $frequencyMHz МГц, который определяет изогнутую границу радиогоризонта.';
+  }
+
   @override
   String get contacts_pathTrace => 'Трассировка пути';
 
@@ -2901,4 +3227,90 @@ class AppLocalizationsRu extends AppLocalizations {
   @override
   String get settings_gpxExportShareSubject =>
       'meshcore-open экспорт данных карты GPX';
+
+  @override
+  String get snrIndicator_nearByRepeaters => 'Ближайшие ретрансляторы';
+
+  @override
+  String get snrIndicator_lastSeen => 'Последний раз видели';
+
+  @override
+  String get contactsSettings_title => 'Настройки контактов';
+
+  @override
+  String get contactsSettings_autoAddTitle => 'Автоматическое обнаружение';
+
+  @override
+  String get contactsSettings_otherTitle =>
+      'Другие настройки, связанные с контактами';
+
+  @override
+  String get contactsSettings_autoAddUsersTitle =>
+      'Автоматически добавлять пользователей';
+
+  @override
+  String get contactsSettings_autoAddUsersSubtitle =>
+      'Разрешить компаньону автоматически добавлять обнаруженных пользователей';
+
+  @override
+  String get contactsSettings_autoAddRepeatersTitle =>
+      'Автоматически добавлять ретрансляторы';
+
+  @override
+  String get contactsSettings_autoAddRepeatersSubtitle =>
+      'Разрешить спутнику автоматически добавлять обнаруженные ретрансляторы';
+
+  @override
+  String get contactsSettings_autoAddRoomServersTitle =>
+      'Автоматически добавлять серверы комнат';
+
+  @override
+  String get contactsSettings_autoAddRoomServersSubtitle =>
+      'Разрешить компаньону автоматически добавлять обнаруженные сервера комнат.';
+
+  @override
+  String get contactsSettings_autoAddSensorsTitle =>
+      'Автоматически добавлять датчики';
+
+  @override
+  String get contactsSettings_autoAddSensorsSubtitle =>
+      'Разрешить компаньону автоматически добавлять обнаруженные датчики';
+
+  @override
+  String get contactsSettings_overwriteOldestTitle =>
+      'Перезаписать самое старое';
+
+  @override
+  String get contactsSettings_overwriteOldestSubtitle =>
+      'Когда список контактов заполнен, будет заменен самый старый контакт, который не находится в избранном.';
+
+  @override
+  String get discoveredContacts_Title => 'Обнаруженные контакты';
+
+  @override
+  String get discoveredContacts_noMatching => 'Нет совпадающих контактов';
+
+  @override
+  String get discoveredContacts_searchHint => 'Найденные контакты поиска';
+
+  @override
+  String get discoveredContacts_contactAdded => 'Контакт добавлен';
+
+  @override
+  String get discoveredContacts_addContact => 'Добавить контакт';
+
+  @override
+  String get discoveredContacts_copyContact =>
+      'Копировать контакт в буфер обмена';
+
+  @override
+  String get discoveredContacts_deleteContact => 'Удалить контакт';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Удалить Все Обнаруженные Контакты';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Вы уверены, что хотите удалить все обнаруженные контакты?';
 }

lib/l10n/app_localizations_sk.dart

@@ -38,6 +38,9 @@ class AppLocalizationsSk extends AppLocalizations {
   @override
   String get common_delete => 'Odstrániť';
 
+  @override
+  String get common_deleteAll => 'Zmazať všetko';
+
   @override
   String get common_close => 'Zavrieť';
 
@@ -108,6 +111,91 @@ class AppLocalizationsSk extends AppLocalizations {
   @override
   String get scanner_title => 'MeshCore Open';
 
+  @override
+  String get connectionChoiceUsbLabel => 'USB';
+
+  @override
+  String get connectionChoiceBluetoothLabel => 'Bluetooth';
+
+  @override
+  String get usbScreenTitle => 'Pripojte cez USB';
+
+  @override
+  String get usbScreenSubtitle =>
+      'Vyberte detekovaný sériový zariadenie a pripojte ho priamo k vašej MeshCore uzlu.';
+
+  @override
+  String get usbScreenStatus => 'Vyberte USB zariadenie';
+
+  @override
+  String get usbScreenNote =>
+      'USB sériová komunikácia je aktívna na podporovaných zariadeniach s Androidom a na desktopových platformách.';
+
+  @override
+  String get usbScreenEmptyState =>
+      'Nenašli sa žiadne USB zariadenia. Pripojte jedno a obnovte.';
+
+  @override
+  String get usbErrorPermissionDenied =>
+      'Žiadosť o prístup cez USB bola zamietnutá.';
+
+  @override
+  String get usbErrorDeviceMissing =>
+      'Vybrané USB zariadenie už nie je dostupné.';
+
+  @override
+  String get usbErrorInvalidPort => 'Vyberte platné USB zariadenie.';
+
+  @override
+  String get usbErrorBusy =>
+      'Ďalšia požiadavka na pripojenie cez USB je aktuálne v procese.';
+
+  @override
+  String get usbErrorNotConnected => 'Nie je pripojené žiadne USB zariadenie.';
+
+  @override
+  String get usbErrorOpenFailed =>
+      'Nepodarilo sa otvoriť vybrané USB zariadenie.';
+
+  @override
+  String get usbErrorConnectFailed =>
+      'Nepodarilo sa sa sa pripojiť k vybranému USB zariadeniu.';
+
+  @override
+  String get usbErrorUnsupported =>
+      'Podpora USB sériového rozhrania nie je na tejto platforme dostupná.';
+
+  @override
+  String get usbErrorAlreadyActive => 'Pripojenie cez USB je už aktivované.';
+
+  @override
+  String get usbErrorNoDeviceSelected =>
+      'Nebolo vybrané žiadne USB zariadenie.';
+
+  @override
+  String get usbErrorPortClosed => 'Pripojenie cez USB nie je aktivované.';
+
+  @override
+  String get usbErrorConnectTimedOut =>
+      'Pripojenie nebolo úspešné. Uistite sa, že zariadenie má nainštalovaný firmware USB Companion.';
+
+  @override
+  String get usbFallbackDeviceName => 'Webový sériový zariadenie';
+
+  @override
+  String get usbStatus_notConnected => 'Vyberte USB zariadenie';
+
+  @override
+  String get usbStatus_connecting => 'Pripojenie k USB zariadeniu...';
+
+  @override
+  String get usbStatus_searching => 'Hľadanie USB zariadení...';
+
+  @override
+  String usbConnectionFailed(String error) {
+    return 'Neúspešné pripojenie cez USB: $error';
+  }
+
   @override
   String get scanner_scanning => 'Skrívania zariadení...';
 
@@ -150,6 +238,13 @@ class AppLocalizationsSk extends AppLocalizations {
   String get scanner_bluetoothOffMessage =>
       'Prosím, zapnite Bluetooth, aby ste mohli skenovať pre zariadenia.';
 
+  @override
+  String get scanner_chromeRequired => 'Vyžaduje sa prehliadač Chrome';
+
+  @override
+  String get scanner_chromeRequiredMessage =>
+      'Táto webová aplikácia vyžaduje Google Chrome alebo prehliadač založený na Chromium pre podporu Bluetooth.';
+
   @override
   String get scanner_enableBluetooth => 'Povolte Bluetooth';
 
@@ -233,6 +328,13 @@ class AppLocalizationsSk extends AppLocalizations {
   @override
   String get settings_longitude => 'Dĺžka';
 
+  @override
+  String get settings_contactSettings => 'Nastavenia kontaktov';
+
+  @override
+  String get settings_contactSettingsSubtitle =>
+      'Nastavenia pre pridávanie kontaktov.';
+
   @override
   String get settings_privacyMode => 'Režim ochrany súkromia';
 
@@ -320,6 +422,10 @@ class AppLocalizationsSk extends AppLocalizations {
   String get settings_aboutDescription =>
       'Otvorený zdrojový Flutter klient pre MeshCore LoRa sieťové zariadenia.';
 
+  @override
+  String get settings_aboutOpenMeteoAttribution =>
+      'Údaje o nadmorskej výške LOS: Open-Meteo (CC BY 4.0)';
+
   @override
   String get settings_infoName => 'Meno';
 
@@ -456,6 +562,13 @@ class AppLocalizationsSk extends AppLocalizations {
   @override
   String get appSettings_languageUk => 'Ukrajinská';
 
+  @override
+  String get appSettings_enableMessageTracing => 'Povoliť sledovanie správ';
+
+  @override
+  String get appSettings_enableMessageTracingSubtitle =>
+      'Zobraziť podrobné metadáta o smerovaní a časovaní správ';
+
   @override
   String get appSettings_notifications => 'Upozornenia';
 
@@ -614,6 +727,15 @@ class AppLocalizationsSk extends AppLocalizations {
   @override
   String get appSettings_offlineMapCache => 'Offline Mapa Pamäť';
 
+  @override
+  String get appSettings_unitsTitle => 'Jednotky';
+
+  @override
+  String get appSettings_unitsMetric => 'Metrické (m / km)';
+
+  @override
+  String get appSettings_unitsImperial => 'Imperiálne (ft / mi)';
+
   @override
   String get appSettings_noAreaSelected => 'Neoznačila sa žiadna oblasť';
 
@@ -651,7 +773,35 @@ class AppLocalizationsSk extends AppLocalizations {
       'Kontakty sa zobrazia, keď zariadenia spúšťajú reklamu.';
 
   @override
-  String get contacts_searchContacts => 'Vyhľadávajte kontakty...';
+  String get contacts_unread => 'Neprečítané';
+
+  @override
+  String get contacts_searchContactsNoNumber => 'Hľadať kontakty...';
+
+  @override
+  String contacts_searchContacts(int number, String str) {
+    return 'Vyhľadávajte kontakty...';
+  }
+
+  @override
+  String contacts_searchFavorites(int number, String str) {
+    return 'Hľadať $number$str obľúbené...';
+  }
+
+  @override
+  String contacts_searchUsers(int number, String str) {
+    return 'Hľadať $number$str používateľov...';
+  }
+
+  @override
+  String contacts_searchRepeaters(int number, String str) {
+    return 'Hľadať $number$str opakovače...';
+  }
+
+  @override
+  String contacts_searchRoomServers(int number, String str) {
+    return 'Hľadaj $number$str serverov miestností...';
+  }
 
   @override
   String get contacts_noUnreadContacts => 'Žiadne neprečítané kontakty';
@@ -779,6 +929,12 @@ class AppLocalizationsSk extends AppLocalizations {
   @override
   String get channels_editChannel => 'Upraviť kanál';
 
+  @override
+  String get channels_muteChannel => 'Stlmiť kanál';
+
+  @override
+  String get channels_unmuteChannel => 'Zrušiť stlmenie kanála';
+
   @override
   String get channels_deleteChannel => 'Odstrániť kanál';
 
@@ -787,6 +943,11 @@ class AppLocalizationsSk extends AppLocalizations {
     return 'Odstrániť \"$name\"? To sa nedá zrušiť.';
   }
 
+  @override
+  String channels_channelDeleteFailed(String name) {
+    return 'Kanál \"$name\" sa nepodarilo odstrániť';
+  }
+
   @override
   String channels_channelDeleted(String name) {
     return 'Kanál \"$name\" bol odstránený';
@@ -1074,6 +1235,9 @@ class AppLocalizationsSk extends AppLocalizations {
   @override
   String get chat_pathManagement => 'Správa ciest';
 
+  @override
+  String get chat_ShowAllPaths => 'Zobraziť všetky cesty';
+
   @override
   String get chat_routingMode => 'Režim trasy';
 
@@ -1233,6 +1397,12 @@ class AppLocalizationsSk extends AppLocalizations {
   @override
   String get map_title => 'Mapa uzlov';
 
+  @override
+  String get map_lineOfSight => 'Line of Sight';
+
+  @override
+  String get map_losScreenTitle => 'Line of Sight';
+
   @override
   String get map_noNodesWithLocation => 'Žiadne uzly s údajmi o polohe';
 
@@ -1350,6 +1520,13 @@ class AppLocalizationsSk extends AppLocalizations {
   @override
   String get map_showSharedMarkers => 'Zobraziť zdieľané značky';
 
+  @override
+  String get map_showGuessedLocations =>
+      'Zobraziť umiestnenia odhadnutých uzlov';
+
+  @override
+  String get map_guessedLocation => 'Odhadnutá lokalita';
+
   @override
   String get map_lastSeenTime => 'Posledný čas sledovania';
 
@@ -1669,10 +1846,10 @@ class AppLocalizationsSk extends AppLocalizations {
   String get repeater_cliSubtitle => 'Pošlite príkazy opakovaču';
 
   @override
-  String get repeater_neighbours => 'Súsezný';
+  String get repeater_neighbors => 'Súsezný';
 
   @override
-  String get repeater_neighboursSubtitle => 'Zobraziť susedné body bez skokov.';
+  String get repeater_neighborsSubtitle => 'Zobraziť susedné body bez skokov.';
 
   @override
   String get repeater_settings => 'Nastavenia';
@@ -2363,7 +2540,7 @@ class AppLocalizationsSk extends AppLocalizations {
   }
 
   @override
-  String get neighbors_repeatersNeighbours => 'Opakovadlá Súsezná';
+  String get neighbors_repeatersNeighbors => 'Opakovadlá Súsezná';
 
   @override
   String get neighbors_noData =>
@@ -2672,6 +2849,15 @@ class AppLocalizationsSk extends AppLocalizations {
   @override
   String get listFilter_all => 'Všetko';
 
+  @override
+  String get listFilter_favorites => 'Obľúbené';
+
+  @override
+  String get listFilter_addToFavorites => 'Pridaj do obľúbených';
+
+  @override
+  String get listFilter_removeFromFavorites => 'Odstrániť z označení';
+
   @override
   String get listFilter_users => 'Používatelia';
 
@@ -2706,6 +2892,144 @@ class AppLocalizationsSk extends AppLocalizations {
   @override
   String get pathTrace_clearTooltip => 'Zmazať cestu';
 
+  @override
+  String get losSelectStartEnd => 'Vyberte počiatočný a koncový uzol pre LOS.';
+
+  @override
+  String losRunFailed(String error) {
+    return 'Kontrola priamej viditeľnosti zlyhala: $error';
+  }
+
+  @override
+  String get losClearAllPoints => 'Vymazať všetky body';
+
+  @override
+  String get losRunToViewElevationProfile =>
+      'Ak chcete zobraziť výškový profil, spustite LOS';
+
+  @override
+  String get losMenuTitle => 'Menu LOS';
+
+  @override
+  String get losMenuSubtitle =>
+      'Klepnutím na uzly alebo dlhým stlačením mapy získate vlastné body';
+
+  @override
+  String get losShowDisplayNodes => 'Zobraziť uzly zobrazenia';
+
+  @override
+  String get losCustomPoints => 'Vlastné body';
+
+  @override
+  String losCustomPointLabel(int index) {
+    return 'Vlastné $index';
+  }
+
+  @override
+  String get losPointA => 'Bod A';
+
+  @override
+  String get losPointB => 'Bod B';
+
+  @override
+  String losAntennaA(String value, String unit) {
+    return 'Anténa A: $value $unit';
+  }
+
+  @override
+  String losAntennaB(String value, String unit) {
+    return 'Anténa B: $value $unit';
+  }
+
+  @override
+  String get losRun => 'Spustite LOS';
+
+  @override
+  String get losNoElevationData => 'Žiadne údaje o nadmorskej výške';
+
+  @override
+  String losProfileClear(
+    String distance,
+    String distanceUnit,
+    String clearance,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, vymazať LOS, min. vôľa $clearance $heightUnit';
+  }
+
+  @override
+  String losProfileBlocked(
+    String distance,
+    String distanceUnit,
+    String obstruction,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, blokovaný $obstruction $heightUnit';
+  }
+
+  @override
+  String get losStatusChecking => 'LOS: kontrolujem...';
+
+  @override
+  String get losStatusNoData => 'LOS: žiadne údaje';
+
+  @override
+  String losStatusSummary(int clear, int total, int blocked, int unknown) {
+    return 'LOS: $clear/$total vymazané, $blocked blokované, $unknown neznáme';
+  }
+
+  @override
+  String get losErrorElevationUnavailable =>
+      'Údaje o nadmorskej výške nie sú k dispozícii pre jednu alebo viacero vzoriek.';
+
+  @override
+  String get losErrorInvalidInput =>
+      'Neplatné body/údaje o nadmorskej výške pre výpočet LOS.';
+
+  @override
+  String get losRenameCustomPoint => 'Premenovať vlastný bod';
+
+  @override
+  String get losPointName => 'Názov bodu';
+
+  @override
+  String get losShowPanelTooltip => 'Zobraziť panel LOS';
+
+  @override
+  String get losHidePanelTooltip => 'Skryť panel LOS';
+
+  @override
+  String get losElevationAttribution =>
+      'Údaje o nadmorskej výške: Open-Meteo (CC BY 4.0)';
+
+  @override
+  String get losLegendRadioHorizon => 'Rádiový horizont';
+
+  @override
+  String get losLegendLosBeam => 'Priama viditeľnosť';
+
+  @override
+  String get losLegendTerrain => 'Terén';
+
+  @override
+  String get losFrequencyLabel => 'Frekvencia';
+
+  @override
+  String get losFrequencyInfoTooltip => 'Zobraziť podrobnosti výpočtu';
+
+  @override
+  String get losFrequencyDialogTitle => 'Výpočet rádiového horizontu';
+
+  @override
+  String losFrequencyDialogDescription(
+    double baselineK,
+    double baselineFreq,
+    double frequencyMHz,
+    double kFactor,
+  ) {
+    return 'Počnúc od k=$baselineK pri $baselineFreq MHz výpočet upraví k-faktor pre aktuálne pásmo $frequencyMHz MHz, ktorý definuje zakrivený strop rádiového horizontu.';
+  }
+
   @override
   String get contacts_pathTrace => 'Sledovanie lúčov';
 
@@ -2877,4 +3201,88 @@ class AppLocalizationsSk extends AppLocalizations {
   @override
   String get settings_gpxExportShareSubject =>
       'meshcore-open export dát GPX mapových údajov';
+
+  @override
+  String get snrIndicator_nearByRepeaters => 'Miestne opakovače';
+
+  @override
+  String get snrIndicator_lastSeen => 'Naposledy videný';
+
+  @override
+  String get contactsSettings_title => 'Nastavenia kontaktov';
+
+  @override
+  String get contactsSettings_autoAddTitle => 'Automatické zisťovanie';
+
+  @override
+  String get contactsSettings_otherTitle =>
+      'Ďalšie nastavenia súvisiace s kontaktami';
+
+  @override
+  String get contactsSettings_autoAddUsersTitle =>
+      'Automaticky pridávať užívateľov';
+
+  @override
+  String get contactsSettings_autoAddUsersSubtitle =>
+      'Povoliť spoločníkovi automaticky pridávať objavených užívateľov.';
+
+  @override
+  String get contactsSettings_autoAddRepeatersTitle =>
+      'Automaticky pridávať opakovače';
+
+  @override
+  String get contactsSettings_autoAddRepeatersSubtitle =>
+      'Povoliť spoločníkovi automaticky pridávať objavené repeater.';
+
+  @override
+  String get contactsSettings_autoAddRoomServersTitle =>
+      'Automaticky pridávať server miestnosti';
+
+  @override
+  String get contactsSettings_autoAddRoomServersSubtitle =>
+      'Povoliť spoločníkovi automaticky pridať objavené serverové miestnosti.';
+
+  @override
+  String get contactsSettings_autoAddSensorsTitle =>
+      'Automaticky pridávať senzory';
+
+  @override
+  String get contactsSettings_autoAddSensorsSubtitle =>
+      'Povoliť spoločníkovi automaticky pridávať objavené senzory.';
+
+  @override
+  String get contactsSettings_overwriteOldestTitle => 'Prepísať najstaršie';
+
+  @override
+  String get contactsSettings_overwriteOldestSubtitle =>
+      'Keď je zoznam kontaktov plný, bude nahradený najstarší neoznačený kontakt.';
+
+  @override
+  String get discoveredContacts_Title => 'Objavené kontakty';
+
+  @override
+  String get discoveredContacts_noMatching => 'Žiadne zhodné kontakty';
+
+  @override
+  String get discoveredContacts_searchHint => 'Vyhľadať objavené kontakty';
+
+  @override
+  String get discoveredContacts_contactAdded => 'Kontakt bol pridaný';
+
+  @override
+  String get discoveredContacts_addContact => 'Pridať kontakt';
+
+  @override
+  String get discoveredContacts_copyContact => 'Kopírovať kontakt do schránky';
+
+  @override
+  String get discoveredContacts_deleteContact => 'Zmazať kontakt';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Zmazať všetky objavené kontakty';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Ste si istí, že chcete zmazať všetky objavené kontakty?';
 }

lib/l10n/app_localizations_sl.dart

@@ -38,6 +38,9 @@ class AppLocalizationsSl extends AppLocalizations {
   @override
   String get common_delete => 'Izbrisati';
 
+  @override
+  String get common_deleteAll => 'Izbriši vse';
+
   @override
   String get common_close => 'Zapri';
 
@@ -108,6 +111,89 @@ class AppLocalizationsSl extends AppLocalizations {
   @override
   String get scanner_title => 'MeshCore Open';
 
+  @override
+  String get connectionChoiceUsbLabel => 'USB';
+
+  @override
+  String get connectionChoiceBluetoothLabel => 'Bluetooth';
+
+  @override
+  String get usbScreenTitle => 'Povežite preko USB';
+
+  @override
+  String get usbScreenSubtitle =>
+      'Izberite zaznano serijsko napravo in se neposredno povežite z vašo MeshCore napravo.';
+
+  @override
+  String get usbScreenStatus => 'Izberite USB naprave';
+
+  @override
+  String get usbScreenNote =>
+      'USB serijska povezava je aktivna na podprtih napravah Android in na desktop platformah.';
+
+  @override
+  String get usbScreenEmptyState =>
+      'Niti en USB naprave niso najdeni. Povežite eno in posodobite.';
+
+  @override
+  String get usbErrorPermissionDenied =>
+      'Dovoljenje za dostop preko USB-ja je bilo zavrnjeno.';
+
+  @override
+  String get usbErrorDeviceMissing => 'Izbrani USB napravej je več ne.';
+
+  @override
+  String get usbErrorInvalidPort => 'Izberite veljavno USB naprave.';
+
+  @override
+  String get usbErrorBusy => 'Že je v teku zahteva za povezavo preko USB.';
+
+  @override
+  String get usbErrorNotConnected => 'Ni priklopljenih USB naprave.';
+
+  @override
+  String get usbErrorOpenFailed =>
+      'Uspešno ni bilo mogo, da se odpre izbran naprave USB.';
+
+  @override
+  String get usbErrorConnectFailed =>
+      'Niso bilo mogoče uskladiti povezave z izbranim USB napom.';
+
+  @override
+  String get usbErrorUnsupported =>
+      'USB serijska komunikacija ni podprta na tej platformi.';
+
+  @override
+  String get usbErrorAlreadyActive => 'USB povezava je že aktivirana.';
+
+  @override
+  String get usbErrorNoDeviceSelected => 'Ni bilo izbranega USB naprave.';
+
+  @override
+  String get usbErrorPortClosed => 'USB povezava ni aktivirana.';
+
+  @override
+  String get usbErrorConnectTimedOut =>
+      'Vzpostavitve ni bilo mogo. Prosimo, da se prepričate, da ima naprave trenutno nameštan firmware USB Companion.';
+
+  @override
+  String get usbFallbackDeviceName =>
+      'Naprave za serijsko komunikacijo preko spleta';
+
+  @override
+  String get usbStatus_notConnected => 'Izberite USB naprave.';
+
+  @override
+  String get usbStatus_connecting => 'Povezava z USB napravo...';
+
+  @override
+  String get usbStatus_searching => 'Iskanje USB naprav...';
+
+  @override
+  String usbConnectionFailed(String error) {
+    return 'Napaka pri povezavi preko USB: $error';
+  }
+
   @override
   String get scanner_scanning => 'Skeniram za naprave...';
 
@@ -150,6 +236,13 @@ class AppLocalizationsSl extends AppLocalizations {
   String get scanner_bluetoothOffMessage =>
       'Prosimo, vklopite Bluetooth, da lahko poiščete naprave.';
 
+  @override
+  String get scanner_chromeRequired => 'Zahtevan brskalnik Chrome';
+
+  @override
+  String get scanner_chromeRequiredMessage =>
+      'Ta spletna aplikacija za podporo Bluetooth zahteva Google Chrome ali brskalnik na osnovi Chromiuma.';
+
   @override
   String get scanner_enableBluetooth => 'Omogočite Bluetooth';
 
@@ -233,6 +326,13 @@ class AppLocalizationsSl extends AppLocalizations {
   @override
   String get settings_longitude => 'Dolžina';
 
+  @override
+  String get settings_contactSettings => 'Nastavitve stika';
+
+  @override
+  String get settings_contactSettingsSubtitle =>
+      'Nastavitve za dodajanje stikov.';
+
   @override
   String get settings_privacyMode => 'Zasebnost';
 
@@ -319,6 +419,10 @@ class AppLocalizationsSl extends AppLocalizations {
   String get settings_aboutDescription =>
       'Odprtokodni Flutter klient za naprave za LoRa omrežje MeshCore.';
 
+  @override
+  String get settings_aboutOpenMeteoAttribution =>
+      'Podatki o višini LOS: Open-Meteo (CC BY 4.0)';
+
   @override
   String get settings_infoName => 'Ime';
 
@@ -455,6 +559,13 @@ class AppLocalizationsSl extends AppLocalizations {
   @override
   String get appSettings_languageUk => 'Ukrajinsko';
 
+  @override
+  String get appSettings_enableMessageTracing => 'Omogoči sledenje sporočilom';
+
+  @override
+  String get appSettings_enableMessageTracingSubtitle =>
+      'Prikaži podrobne metapodatke o usmerjanju in časovnem usklajevanju sporočil';
+
   @override
   String get appSettings_notifications => 'Obvestila';
 
@@ -615,6 +726,15 @@ class AppLocalizationsSl extends AppLocalizations {
   @override
   String get appSettings_offlineMapCache => 'Shramba zemljevidov brez povezave';
 
+  @override
+  String get appSettings_unitsTitle => 'Enote';
+
+  @override
+  String get appSettings_unitsMetric => 'Metrična (m/km)';
+
+  @override
+  String get appSettings_unitsImperial => 'Imperialno (ft / mi)';
+
   @override
   String get appSettings_noAreaSelected => 'Območje ni izbrano';
 
@@ -652,7 +772,35 @@ class AppLocalizationsSl extends AppLocalizations {
       'Stiki se bodo prikazali, ko se naprave oglasijo.';
 
   @override
-  String get contacts_searchContacts => 'Iskanje stikov...';
+  String get contacts_unread => 'Neprebrano';
+
+  @override
+  String get contacts_searchContactsNoNumber => 'Iskanje stikov...';
+
+  @override
+  String contacts_searchContacts(int number, String str) {
+    return 'Iskanje stikov...';
+  }
+
+  @override
+  String contacts_searchFavorites(int number, String str) {
+    return 'Iskanje $number$str priljubljenih...';
+  }
+
+  @override
+  String contacts_searchUsers(int number, String str) {
+    return 'Išči $number$str uporabnikov...';
+  }
+
+  @override
+  String contacts_searchRepeaters(int number, String str) {
+    return 'Išči $number$str ponavljalnike...';
+  }
+
+  @override
+  String contacts_searchRoomServers(int number, String str) {
+    return 'Išči $number$str strežnikov sob...';
+  }
 
   @override
   String get contacts_noUnreadContacts => 'Ne prebrani stiki.';
@@ -777,6 +925,12 @@ class AppLocalizationsSl extends AppLocalizations {
   @override
   String get channels_editChannel => 'Uredi kanal';
 
+  @override
+  String get channels_muteChannel => 'Utišaj kanal';
+
+  @override
+  String get channels_unmuteChannel => 'Vklopi obvestila kanala';
+
   @override
   String get channels_deleteChannel => 'Pošlji kanal';
 
@@ -785,6 +939,11 @@ class AppLocalizationsSl extends AppLocalizations {
     return 'Izbrišem \"$name\"? To se ne da povrniti.';
   }
 
+  @override
+  String channels_channelDeleteFailed(String name) {
+    return 'Kanala $name ni bilo mogoče izbrisati';
+  }
+
   @override
   String channels_channelDeleted(String name) {
     return 'Kanal \"$name\" izbrisan.';
@@ -1072,6 +1231,9 @@ class AppLocalizationsSl extends AppLocalizations {
   @override
   String get chat_pathManagement => 'Upravljanje poti';
 
+  @override
+  String get chat_ShowAllPaths => 'Prikaži vse poti';
+
   @override
   String get chat_routingMode => 'Navodilo za usmerjevalni način';
 
@@ -1228,6 +1390,12 @@ class AppLocalizationsSl extends AppLocalizations {
   @override
   String get map_title => 'Mapa omrežja';
 
+  @override
+  String get map_lineOfSight => 'Linija vida';
+
+  @override
+  String get map_losScreenTitle => 'Linija vida';
+
   @override
   String get map_noNodesWithLocation =>
       'Nihče od notranjih elementov nima podatkov o lokaciji.';
@@ -1346,6 +1514,12 @@ class AppLocalizationsSl extends AppLocalizations {
   @override
   String get map_showSharedMarkers => 'Pokaži skupno označenja';
 
+  @override
+  String get map_showGuessedLocations => 'Pokaži lokacije domnevnih not.';
+
+  @override
+  String get map_guessedLocation => 'Predpostavljena lokacija';
+
   @override
   String get map_lastSeenTime => 'Datum zadnjega vpogleda';
 
@@ -1668,10 +1842,10 @@ class AppLocalizationsSl extends AppLocalizations {
       'Pošlji ukazne povelje na ponovitveno enoto.';
 
   @override
-  String get repeater_neighbours => 'Sosedi';
+  String get repeater_neighbors => 'Sosedi';
 
   @override
-  String get repeater_neighboursSubtitle => 'Pogledati nič sosednjih hopjev.';
+  String get repeater_neighborsSubtitle => 'Pogledati nič sosednjih hopjev.';
 
   @override
   String get repeater_settings => 'Nastavitve';
@@ -2367,7 +2541,7 @@ class AppLocalizationsSl extends AppLocalizations {
   }
 
   @override
-  String get neighbors_repeatersNeighbours => 'Ponovitve Sosedi';
+  String get neighbors_repeatersNeighbors => 'Ponovitve Sosedi';
 
   @override
   String get neighbors_noData => 'Niso na voljo podatki o sosedih.';
@@ -2675,6 +2849,15 @@ class AppLocalizationsSl extends AppLocalizations {
   @override
   String get listFilter_all => 'Vse';
 
+  @override
+  String get listFilter_favorites => 'Priljubljene';
+
+  @override
+  String get listFilter_addToFavorites => 'Dodaj v priljubljene';
+
+  @override
+  String get listFilter_removeFromFavorites => 'Odstrani iz priljubljenih';
+
   @override
   String get listFilter_users => 'Uporabniki';
 
@@ -2709,6 +2892,144 @@ class AppLocalizationsSl extends AppLocalizations {
   @override
   String get pathTrace_clearTooltip => 'Počisti pot';
 
+  @override
+  String get losSelectStartEnd => 'Izberite začetno in končno vozlišče za LOS.';
+
+  @override
+  String losRunFailed(String error) {
+    return 'Preverjanje vidnega polja ni uspelo: $error';
+  }
+
+  @override
+  String get losClearAllPoints => 'Počisti vse točke';
+
+  @override
+  String get losRunToViewElevationProfile =>
+      'Zaženite LOS za ogled višinskega profila';
+
+  @override
+  String get losMenuTitle => 'LOS meni';
+
+  @override
+  String get losMenuSubtitle =>
+      'Tapnite vozlišča ali dolgo pritisnite na zemljevid za točke po meri';
+
+  @override
+  String get losShowDisplayNodes => 'Pokaži prikazna vozlišča';
+
+  @override
+  String get losCustomPoints => 'Točke po meri';
+
+  @override
+  String losCustomPointLabel(int index) {
+    return 'Po meri $index';
+  }
+
+  @override
+  String get losPointA => 'Točka A';
+
+  @override
+  String get losPointB => 'Točka B';
+
+  @override
+  String losAntennaA(String value, String unit) {
+    return 'Antena A: $value $unit';
+  }
+
+  @override
+  String losAntennaB(String value, String unit) {
+    return 'Antena B: $value $unit';
+  }
+
+  @override
+  String get losRun => 'Zaženi LOS';
+
+  @override
+  String get losNoElevationData => 'Ni podatkov o višini';
+
+  @override
+  String losProfileClear(
+    String distance,
+    String distanceUnit,
+    String clearance,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, čisti LOS, najmanjša razdalja $clearance $heightUnit';
+  }
+
+  @override
+  String losProfileBlocked(
+    String distance,
+    String distanceUnit,
+    String obstruction,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, blokiral $obstruction $heightUnit';
+  }
+
+  @override
+  String get losStatusChecking => 'LOS: preverjam ...';
+
+  @override
+  String get losStatusNoData => 'LOS: ni podatkov';
+
+  @override
+  String losStatusSummary(int clear, int total, int blocked, int unknown) {
+    return 'LOS: $clear/$total jasno, $blocked blokirano, $unknown neznano';
+  }
+
+  @override
+  String get losErrorElevationUnavailable =>
+      'Podatki o nadmorski višini niso na voljo za enega ali več vzorcev.';
+
+  @override
+  String get losErrorInvalidInput =>
+      'Neveljavni podatki o točkah/višini za izračun LOS.';
+
+  @override
+  String get losRenameCustomPoint => 'Preimenujte točko po meri';
+
+  @override
+  String get losPointName => 'Ime točke';
+
+  @override
+  String get losShowPanelTooltip => 'Pokaži ploščo LOS';
+
+  @override
+  String get losHidePanelTooltip => 'Skrij ploščo LOS';
+
+  @override
+  String get losElevationAttribution =>
+      'Podatki o višini: Open-Meteo (CC BY 4.0)';
+
+  @override
+  String get losLegendRadioHorizon => 'Radijski horizont';
+
+  @override
+  String get losLegendLosBeam => 'Linija vidnosti';
+
+  @override
+  String get losLegendTerrain => 'Teren';
+
+  @override
+  String get losFrequencyLabel => 'Frekvenca';
+
+  @override
+  String get losFrequencyInfoTooltip => 'Prikaži podrobnosti izračuna';
+
+  @override
+  String get losFrequencyDialogTitle => 'Izračun radijskega horizonta';
+
+  @override
+  String losFrequencyDialogDescription(
+    double baselineK,
+    double baselineFreq,
+    double frequencyMHz,
+    double kFactor,
+  ) {
+    return 'Začenši od k=$baselineK pri $baselineFreq MHz, izračun prilagodi k-faktor za trenutni pas $frequencyMHz MHz, ki določa ukrivljeno zgornjo mejo radijskega horizonta.';
+  }
+
   @override
   String get contacts_pathTrace => 'Sledenje poti';
 
@@ -2882,4 +3203,87 @@ class AppLocalizationsSl extends AppLocalizations {
   @override
   String get settings_gpxExportShareSubject =>
       'meshcore-open izvoz podatkov GPX karte';
+
+  @override
+  String get snrIndicator_nearByRepeaters => 'Bližnji ponovitelji';
+
+  @override
+  String get snrIndicator_lastSeen => 'Zadnjič videno';
+
+  @override
+  String get contactsSettings_title => 'Nastavitve stikov';
+
+  @override
+  String get contactsSettings_autoAddTitle => 'Avtomatsko odkrivanje';
+
+  @override
+  String get contactsSettings_otherTitle => 'Druge nastavitve v zvezi s stiki';
+
+  @override
+  String get contactsSettings_autoAddUsersTitle =>
+      'Avtomatsko dodaj uporabnike';
+
+  @override
+  String get contactsSettings_autoAddUsersSubtitle =>
+      'Dovoli spremljevalcu, da samodejno doda odkrite uporabnike.';
+
+  @override
+  String get contactsSettings_autoAddRepeatersTitle =>
+      'Avtomatsko dodaj ponovitelje';
+
+  @override
+  String get contactsSettings_autoAddRepeatersSubtitle =>
+      'Dovoli spremljevalcu, da samodejno doda odkrite ponovitelje.';
+
+  @override
+  String get contactsSettings_autoAddRoomServersTitle =>
+      'Avtomatsko dodaj strežnike sob';
+
+  @override
+  String get contactsSettings_autoAddRoomServersSubtitle =>
+      'Dovoli spremljevalcu, da samodejno doda odkrite strežnike sob.';
+
+  @override
+  String get contactsSettings_autoAddSensorsTitle =>
+      'Avtomatsko dodaj senzorje';
+
+  @override
+  String get contactsSettings_autoAddSensorsSubtitle =>
+      'Dovoli spremljevalcu, da samodejno doda odkrite senzorje.';
+
+  @override
+  String get contactsSettings_overwriteOldestTitle => 'Prepiši najstarejše';
+
+  @override
+  String get contactsSettings_overwriteOldestSubtitle =>
+      'Ko je seznam stikov poln, bo najstarejši nestarševski stik zamenjan.';
+
+  @override
+  String get discoveredContacts_Title => 'Odkriti stiki';
+
+  @override
+  String get discoveredContacts_noMatching => 'Ni ujemajočih stikov';
+
+  @override
+  String get discoveredContacts_searchHint => 'Najdeni stiki po iskanju';
+
+  @override
+  String get discoveredContacts_contactAdded => 'Kontakt dodan';
+
+  @override
+  String get discoveredContacts_addContact => 'Dodaj stik';
+
+  @override
+  String get discoveredContacts_copyContact => 'Kopiraj stik v odložišče';
+
+  @override
+  String get discoveredContacts_deleteContact => 'Izbriši stik';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Izbriši vse odkrite kontakte';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Ste prepričani, da želite izbrisati vse odkrite kontakte?';
 }

lib/l10n/app_localizations_sv.dart

@@ -38,6 +38,9 @@ class AppLocalizationsSv extends AppLocalizations {
   @override
   String get common_delete => 'Radera';
 
+  @override
+  String get common_deleteAll => 'Ta bort alla';
+
   @override
   String get common_close => 'Stänga';
 
@@ -108,6 +111,89 @@ class AppLocalizationsSv extends AppLocalizations {
   @override
   String get scanner_title => 'MeshCore Open';
 
+  @override
+  String get connectionChoiceUsbLabel => 'USB';
+
+  @override
+  String get connectionChoiceBluetoothLabel => 'Bluetooth';
+
+  @override
+  String get usbScreenTitle => 'Anslut via USB';
+
+  @override
+  String get usbScreenSubtitle =>
+      'Välj en detekterad seriell enhet och anslut direkt till din MeshCore-nod.';
+
+  @override
+  String get usbScreenStatus => 'Välj en USB-enhet';
+
+  @override
+  String get usbScreenNote =>
+      'USB-seriell kommunikation är aktiv på stödda Android-enheter och på skrivbordsplattformar.';
+
+  @override
+  String get usbScreenEmptyState =>
+      'Inga USB-enheter hittades. Anslut en och uppdatera.';
+
+  @override
+  String get usbErrorPermissionDenied => 'Tillgången via USB nekas.';
+
+  @override
+  String get usbErrorDeviceMissing =>
+      'Den valda USB-enheten är inte längre tillgänglig.';
+
+  @override
+  String get usbErrorInvalidPort => 'Välj en giltig USB-enhet.';
+
+  @override
+  String get usbErrorBusy =>
+      'En annan förfrågan om USB-anslutning är redan pågående.';
+
+  @override
+  String get usbErrorNotConnected => 'Ingen USB-enhet är ansluten.';
+
+  @override
+  String get usbErrorOpenFailed =>
+      'Misslyckades med att öppna det valda USB-enheten.';
+
+  @override
+  String get usbErrorConnectFailed =>
+      'Kunde inte ansluta till det valda USB-enheten.';
+
+  @override
+  String get usbErrorUnsupported =>
+      'USB-seriell kommunikation stöds inte på denna plattform.';
+
+  @override
+  String get usbErrorAlreadyActive => 'En USB-anslutning är redan aktiv.';
+
+  @override
+  String get usbErrorNoDeviceSelected => 'Ingen USB-enhet valdes.';
+
+  @override
+  String get usbErrorPortClosed => 'USB-anslutningen är inte aktiv.';
+
+  @override
+  String get usbErrorConnectTimedOut =>
+      'Anslutningen har tidsutgått. Se till att enheten har rätt USB-firmware.';
+
+  @override
+  String get usbFallbackDeviceName => 'Web-serieenhet';
+
+  @override
+  String get usbStatus_notConnected => 'Välj en USB-enhet';
+
+  @override
+  String get usbStatus_connecting => 'Anslutning till USB-enhet...';
+
+  @override
+  String get usbStatus_searching => 'Söker efter USB-enheter...';
+
+  @override
+  String usbConnectionFailed(String error) {
+    return 'Fel vid USB-anslutning: $error';
+  }
+
   @override
   String get scanner_scanning => 'Söker efter enheter...';
 
@@ -149,6 +235,13 @@ class AppLocalizationsSv extends AppLocalizations {
   String get scanner_bluetoothOffMessage =>
       'Vänligen aktivera Bluetooth för att söka efter enheter.';
 
+  @override
+  String get scanner_chromeRequired => 'Chrome-webbläsare krävs';
+
+  @override
+  String get scanner_chromeRequiredMessage =>
+      'Denna webbapplikation kräver Google Chrome oder en Chromium-baserader webbläsare för Bluetooth-stöd.';
+
   @override
   String get scanner_enableBluetooth => 'Aktivera Bluetooth';
 
@@ -232,6 +325,13 @@ class AppLocalizationsSv extends AppLocalizations {
   @override
   String get settings_longitude => 'Längdgrad';
 
+  @override
+  String get settings_contactSettings => 'Kontaktinställningar';
+
+  @override
+  String get settings_contactSettingsSubtitle =>
+      'Inställningar för hur kontakter läggs till.';
+
   @override
   String get settings_privacyMode => 'Privatläge';
 
@@ -317,6 +417,10 @@ class AppLocalizationsSv extends AppLocalizations {
   String get settings_aboutDescription =>
       'En öppen källkods Flutter-klient för MeshCore LoRa meshnätverksenheter.';
 
+  @override
+  String get settings_aboutOpenMeteoAttribution =>
+      'LOS-höjddata: Open-Meteo (CC BY 4.0)';
+
   @override
   String get settings_infoName => 'Namn';
 
@@ -453,6 +557,13 @@ class AppLocalizationsSv extends AppLocalizations {
   @override
   String get appSettings_languageUk => 'Ukrainska';
 
+  @override
+  String get appSettings_enableMessageTracing => 'Aktivera meddelandespårning';
+
+  @override
+  String get appSettings_enableMessageTracingSubtitle =>
+      'Visa detaljerade metadata om dirigering och tidsinställningar för meddelanden';
+
   @override
   String get appSettings_notifications => 'Meddelanden';
 
@@ -610,6 +721,15 @@ class AppLocalizationsSv extends AppLocalizations {
   @override
   String get appSettings_offlineMapCache => 'Offline Kartcache';
 
+  @override
+  String get appSettings_unitsTitle => 'Enheter';
+
+  @override
+  String get appSettings_unitsMetric => 'Metriskt (m/km)';
+
+  @override
+  String get appSettings_unitsImperial => 'Imperialt (ft / mi)';
+
   @override
   String get appSettings_noAreaSelected => 'Ingen area markerad';
 
@@ -647,7 +767,35 @@ class AppLocalizationsSv extends AppLocalizations {
       'Kontakter kommer att visas när enheter annonserar.';
 
   @override
-  String get contacts_searchContacts => 'Sök kontakter...';
+  String get contacts_unread => 'Oläst';
+
+  @override
+  String get contacts_searchContactsNoNumber => 'Sök kontakter...';
+
+  @override
+  String contacts_searchContacts(int number, String str) {
+    return 'Sök kontakter...';
+  }
+
+  @override
+  String contacts_searchFavorites(int number, String str) {
+    return 'Sök $number$str Favoriter...';
+  }
+
+  @override
+  String contacts_searchUsers(int number, String str) {
+    return 'Sök $number$str användare...';
+  }
+
+  @override
+  String contacts_searchRepeaters(int number, String str) {
+    return 'Sök $number$str upprepningsenheter...';
+  }
+
+  @override
+  String contacts_searchRoomServers(int number, String str) {
+    return 'Sök $number$str Room-servrar...';
+  }
 
   @override
   String get contacts_noUnreadContacts => 'Inga oinlästa kontakter';
@@ -773,6 +921,12 @@ class AppLocalizationsSv extends AppLocalizations {
   @override
   String get channels_editChannel => 'Redigera kanal';
 
+  @override
+  String get channels_muteChannel => 'Tysta kanal';
+
+  @override
+  String get channels_unmuteChannel => 'Slå på ljud för kanal';
+
   @override
   String get channels_deleteChannel => 'Ta bort kanal';
 
@@ -781,6 +935,11 @@ class AppLocalizationsSv extends AppLocalizations {
     return 'Radera \"$name\"? Detta kan inte ångras.';
   }
 
+  @override
+  String channels_channelDeleteFailed(String name) {
+    return 'Det gick inte att ta bort kanalen \"$name\"';
+  }
+
   @override
   String channels_channelDeleted(String name) {
     return 'Kanalen \"$name\" raderad';
@@ -1069,6 +1228,9 @@ class AppLocalizationsSv extends AppLocalizations {
   @override
   String get chat_pathManagement => 'Stigarhantering';
 
+  @override
+  String get chat_ShowAllPaths => 'Visa alla vägar';
+
   @override
   String get chat_routingMode => 'Ruttläge';
 
@@ -1225,6 +1387,12 @@ class AppLocalizationsSv extends AppLocalizations {
   @override
   String get map_title => 'Nodkarta';
 
+  @override
+  String get map_lineOfSight => 'Synlinje';
+
+  @override
+  String get map_losScreenTitle => 'Synlinje';
+
   @override
   String get map_noNodesWithLocation => 'Inga noder med platsinformation';
 
@@ -1342,6 +1510,13 @@ class AppLocalizationsSv extends AppLocalizations {
   @override
   String get map_showSharedMarkers => 'Visa delade markörer';
 
+  @override
+  String get map_showGuessedLocations =>
+      'Visa upp de antagna nodernas placeringar';
+
+  @override
+  String get map_guessedLocation => 'Gissad plats';
+
   @override
   String get map_lastSeenTime => 'Senaste Visats Tid';
 
@@ -1658,10 +1833,10 @@ class AppLocalizationsSv extends AppLocalizations {
   String get repeater_cliSubtitle => 'Skicka kommandon till repetitorn';
 
   @override
-  String get repeater_neighbours => 'Grannar';
+  String get repeater_neighbors => 'Grannar';
 
   @override
-  String get repeater_neighboursSubtitle => 'Visa noll hoppgrannar.';
+  String get repeater_neighborsSubtitle => 'Visa noll hoppgrannar.';
 
   @override
   String get repeater_settings => 'Inställningar';
@@ -2352,7 +2527,7 @@ class AppLocalizationsSv extends AppLocalizations {
   }
 
   @override
-  String get neighbors_repeatersNeighbours => 'Upprepar grannar';
+  String get neighbors_repeatersNeighbors => 'Upprepar grannar';
 
   @override
   String get neighbors_noData => 'Inga grannuppgifter finns tillgängliga.';
@@ -2660,6 +2835,15 @@ class AppLocalizationsSv extends AppLocalizations {
   @override
   String get listFilter_all => 'Alla';
 
+  @override
+  String get listFilter_favorites => 'Favoriter';
+
+  @override
+  String get listFilter_addToFavorites => 'Lägg till i favoriter';
+
+  @override
+  String get listFilter_removeFromFavorites => 'Ta bort från favoriter';
+
   @override
   String get listFilter_users => 'Användare';
 
@@ -2694,6 +2878,142 @@ class AppLocalizationsSv extends AppLocalizations {
   @override
   String get pathTrace_clearTooltip => 'Rensa väg';
 
+  @override
+  String get losSelectStartEnd => 'Välj start- och slutnoder för LOS.';
+
+  @override
+  String losRunFailed(String error) {
+    return 'Synlinjekontroll misslyckades: $error';
+  }
+
+  @override
+  String get losClearAllPoints => 'Rensa alla punkter';
+
+  @override
+  String get losRunToViewElevationProfile => 'Kör LOS för att se höjdprofil';
+
+  @override
+  String get losMenuTitle => 'LOS-menyn';
+
+  @override
+  String get losMenuSubtitle =>
+      'Tryck på noder eller tryck länge på kartan för anpassade punkter';
+
+  @override
+  String get losShowDisplayNodes => 'Visa displaynoder';
+
+  @override
+  String get losCustomPoints => 'Anpassade poäng';
+
+  @override
+  String losCustomPointLabel(int index) {
+    return 'Anpassad $index';
+  }
+
+  @override
+  String get losPointA => 'Punkt A';
+
+  @override
+  String get losPointB => 'Punkt B';
+
+  @override
+  String losAntennaA(String value, String unit) {
+    return 'Antenn A: $value $unit';
+  }
+
+  @override
+  String losAntennaB(String value, String unit) {
+    return 'Antenn B: $value $unit';
+  }
+
+  @override
+  String get losRun => 'Kör LOS';
+
+  @override
+  String get losNoElevationData => 'Inga höjddata';
+
+  @override
+  String losProfileClear(
+    String distance,
+    String distanceUnit,
+    String clearance,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, rensa LOS, min clearance $clearance $heightUnit';
+  }
+
+  @override
+  String losProfileBlocked(
+    String distance,
+    String distanceUnit,
+    String obstruction,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, blockerad av $obstruction $heightUnit';
+  }
+
+  @override
+  String get losStatusChecking => 'LOS: kollar...';
+
+  @override
+  String get losStatusNoData => 'LOS: inga data';
+
+  @override
+  String losStatusSummary(int clear, int total, int blocked, int unknown) {
+    return 'LOS: $clear/$total rensa, $blocked blockerad, $unknown okänd';
+  }
+
+  @override
+  String get losErrorElevationUnavailable =>
+      'Höjddata är inte tillgänglig för ett eller flera prover.';
+
+  @override
+  String get losErrorInvalidInput =>
+      'Ogiltiga poäng/höjddata för LOS-beräkning.';
+
+  @override
+  String get losRenameCustomPoint => 'Byt namn på anpassad punkt';
+
+  @override
+  String get losPointName => 'Punktnamn';
+
+  @override
+  String get losShowPanelTooltip => 'Visa LOS-panelen';
+
+  @override
+  String get losHidePanelTooltip => 'Dölj LOS-panelen';
+
+  @override
+  String get losElevationAttribution => 'Höjddata: Open-Meteo (CC BY 4.0)';
+
+  @override
+  String get losLegendRadioHorizon => 'Radiohorisont';
+
+  @override
+  String get losLegendLosBeam => 'Siktlinje';
+
+  @override
+  String get losLegendTerrain => 'Terräng';
+
+  @override
+  String get losFrequencyLabel => 'Frekvens';
+
+  @override
+  String get losFrequencyInfoTooltip => 'Visa detaljer om beräkningen';
+
+  @override
+  String get losFrequencyDialogTitle => 'Beräkning av radiohorisonten';
+
+  @override
+  String losFrequencyDialogDescription(
+    double baselineK,
+    double baselineFreq,
+    double frequencyMHz,
+    double kFactor,
+  ) {
+    return 'Med start från k=$baselineK vid $baselineFreq MHz, justerar beräkningen k-faktorn för det aktuella $frequencyMHz MHz-bandet, som definierar den böjda radiohorisonten.';
+  }
+
   @override
   String get contacts_pathTrace => 'Path Trace';
 
@@ -2862,4 +3182,88 @@ class AppLocalizationsSv extends AppLocalizations {
   @override
   String get settings_gpxExportShareSubject =>
       'meshcore-open export av GPX-kartdata';
+
+  @override
+  String get snrIndicator_nearByRepeaters => 'Närliggande uppreparstationer';
+
+  @override
+  String get snrIndicator_lastSeen => 'Senast sedd';
+
+  @override
+  String get contactsSettings_title => 'Kontaktinställningar';
+
+  @override
+  String get contactsSettings_autoAddTitle => 'Automatisk upptäckt';
+
+  @override
+  String get contactsSettings_otherTitle =>
+      'Andra inställningar relaterade till kontakt';
+
+  @override
+  String get contactsSettings_autoAddUsersTitle =>
+      'Lägg till användare automatiskt';
+
+  @override
+  String get contactsSettings_autoAddUsersSubtitle =>
+      'Tillåt kompanjonen att automatiskt lägga till upptäckta användare';
+
+  @override
+  String get contactsSettings_autoAddRepeatersTitle =>
+      'Lägg till upprepande enheter automatiskt';
+
+  @override
+  String get contactsSettings_autoAddRepeatersSubtitle =>
+      'Tillåt kompanjonen att automatiskt lägga till upptäckta repeater.';
+
+  @override
+  String get contactsSettings_autoAddRoomServersTitle =>
+      'Lägg automatiskt till rumsservrar';
+
+  @override
+  String get contactsSettings_autoAddRoomServersSubtitle =>
+      'Tillåt kompanjonen att automatiskt lägga till upptäckta rumsservrar.';
+
+  @override
+  String get contactsSettings_autoAddSensorsTitle =>
+      'Lägg till sensorer automatiskt';
+
+  @override
+  String get contactsSettings_autoAddSensorsSubtitle =>
+      'Tillåt kompanjonen att automatiskt lägga till upptäckta sensorer.';
+
+  @override
+  String get contactsSettings_overwriteOldestTitle => 'Skriv över äldst';
+
+  @override
+  String get contactsSettings_overwriteOldestSubtitle =>
+      'När kontaktlistan är full ersätts den äldsta icke-favoriterade kontakten.';
+
+  @override
+  String get discoveredContacts_Title => 'Upptäckta kontakter';
+
+  @override
+  String get discoveredContacts_noMatching => 'Inga matchande kontakter';
+
+  @override
+  String get discoveredContacts_searchHint => 'Sök uppfunna kontakter';
+
+  @override
+  String get discoveredContacts_contactAdded => 'Kontakt tillagd';
+
+  @override
+  String get discoveredContacts_addContact => 'Lägg till kontakt';
+
+  @override
+  String get discoveredContacts_copyContact => 'Kopiera kontakt till urklipp';
+
+  @override
+  String get discoveredContacts_deleteContact => 'Ta bort kontakt';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Ta bort alla upptäckta kontakter';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Är du säker på att du vill ta bort alla upptäckta kontakter?';
 }

lib/l10n/app_localizations_uk.dart

@@ -38,6 +38,9 @@ class AppLocalizationsUk extends AppLocalizations {
   @override
   String get common_delete => 'Видалити';
 
+  @override
+  String get common_deleteAll => 'Видалити все';
+
   @override
   String get common_close => 'Закрити';
 
@@ -108,6 +111,90 @@ class AppLocalizationsUk extends AppLocalizations {
   @override
   String get scanner_title => 'MeshCore Open';
 
+  @override
+  String get connectionChoiceUsbLabel => 'USB';
+
+  @override
+  String get connectionChoiceBluetoothLabel => 'Bluetooth';
+
+  @override
+  String get usbScreenTitle => 'Підключити через USB';
+
+  @override
+  String get usbScreenSubtitle =>
+      'Виберіть виявлене серійне пристрій і підключіть його безпосередньо до вашого вузла MeshCore.';
+
+  @override
+  String get usbScreenStatus => 'Виберіть пристрій USB';
+
+  @override
+  String get usbScreenNote =>
+      'USB-серіальний інтерфейс активний на підтримуваних пристроях на базі Android та на десктопних платформах.';
+
+  @override
+  String get usbScreenEmptyState =>
+      'Не знайдено жодних пристроїв USB. Підключіть один і перезавантажте.';
+
+  @override
+  String get usbErrorPermissionDenied =>
+      'Було відмовлено у наданні дозволу на використання USB.';
+
+  @override
+  String get usbErrorDeviceMissing => 'Вибране USB-пристрій більше недоступне.';
+
+  @override
+  String get usbErrorInvalidPort => 'Виберіть дійсний USB-пристрій.';
+
+  @override
+  String get usbErrorBusy =>
+      'Ще один запит на підключення через USB вже обробляється.';
+
+  @override
+  String get usbErrorNotConnected => 'Немає підключених пристроїв USB.';
+
+  @override
+  String get usbErrorOpenFailed => 'Не вдалося відкрити вибране USB-пристрій.';
+
+  @override
+  String get usbErrorConnectFailed =>
+      'Не вдалося підключитися до вибраного USB-пристрою.';
+
+  @override
+  String get usbErrorUnsupported =>
+      'Підтримка USB-серіального інтерфейсу не реалізована на цій платформі.';
+
+  @override
+  String get usbErrorAlreadyActive => 'USB-з\'єднання вже встановлено.';
+
+  @override
+  String get usbErrorNoDeviceSelected =>
+      'Не було вибрано жодного пристрою USB.';
+
+  @override
+  String get usbErrorPortClosed => 'З\'єднання USB не встановлено.';
+
+  @override
+  String get usbErrorConnectTimedOut =>
+      'З\'єднання не вдалося встановити. Переконайтеся, що пристрій має встановлене програмне забезпечення USB Companion.';
+
+  @override
+  String get usbFallbackDeviceName =>
+      'Пристрій для передачі даних по веб-серіалах';
+
+  @override
+  String get usbStatus_notConnected => 'Виберіть пристрій USB';
+
+  @override
+  String get usbStatus_connecting => 'Підключення до USB-пристрою...';
+
+  @override
+  String get usbStatus_searching => 'Пошук пристроїв USB...';
+
+  @override
+  String usbConnectionFailed(String error) {
+    return 'Не вдалося встановити з\'єднання через USB: $error';
+  }
+
   @override
   String get scanner_scanning => 'Пошук пристроїв...';
 
@@ -150,6 +237,13 @@ class AppLocalizationsUk extends AppLocalizations {
   String get scanner_bluetoothOffMessage =>
       'Будь ласка, увімкніть Bluetooth, щоб сканувати пристрої.';
 
+  @override
+  String get scanner_chromeRequired => 'Потрібен браузер Chrome';
+
+  @override
+  String get scanner_chromeRequiredMessage =>
+      'Для підтримки Bluetooth у цьому веб-додатку потрібен Google Chrome або браузер на базі Chromium.';
+
   @override
   String get scanner_enableBluetooth => 'Увімкніть Bluetooth';
 
@@ -232,6 +326,13 @@ class AppLocalizationsUk extends AppLocalizations {
   @override
   String get settings_longitude => 'Довгота';
 
+  @override
+  String get settings_contactSettings => 'Налаштування контактів';
+
+  @override
+  String get settings_contactSettingsSubtitle =>
+      'Налаштування для додавання контактів';
+
   @override
   String get settings_privacyMode => 'Режим приватності';
 
@@ -322,6 +423,10 @@ class AppLocalizationsUk extends AppLocalizations {
   String get settings_aboutDescription =>
       'Клієнт Flutter з відкритим вихідним кодом для пристроїв мережі MeshCore LoRa.';
 
+  @override
+  String get settings_aboutOpenMeteoAttribution =>
+      'Дані про висоту LOS: Open-Meteo (CC BY 4.0)';
+
   @override
   String get settings_infoName => 'Ім\'я';
 
@@ -458,6 +563,14 @@ class AppLocalizationsUk extends AppLocalizations {
   @override
   String get appSettings_languageUk => 'Українська';
 
+  @override
+  String get appSettings_enableMessageTracing =>
+      'Увімкнути відстеження повідомлень';
+
+  @override
+  String get appSettings_enableMessageTracingSubtitle =>
+      'Показувати детальні метадані про маршрутизацію та час для повідомлень';
+
   @override
   String get appSettings_notifications => 'Сповіщення';
 
@@ -618,6 +731,15 @@ class AppLocalizationsUk extends AppLocalizations {
   @override
   String get appSettings_offlineMapCache => 'Офлайн-кеш карти';
 
+  @override
+  String get appSettings_unitsTitle => 'одиниці';
+
+  @override
+  String get appSettings_unitsMetric => 'Метричний (м / км)';
+
+  @override
+  String get appSettings_unitsImperial => 'Імперська (ft / mi)';
+
   @override
   String get appSettings_noAreaSelected => 'Область не вибрано';
 
@@ -655,7 +777,35 @@ class AppLocalizationsUk extends AppLocalizations {
       'Контакти з\'являться, коли пристрої надішлють оголошення.';
 
   @override
-  String get contacts_searchContacts => 'Пошук контактів...';
+  String get contacts_unread => 'Непрочитане';
+
+  @override
+  String get contacts_searchContactsNoNumber => 'Пошук контактів...';
+
+  @override
+  String contacts_searchContacts(int number, String str) {
+    return 'Пошук контактів...';
+  }
+
+  @override
+  String contacts_searchFavorites(int number, String str) {
+    return 'Пошук $number$str улюблених...';
+  }
+
+  @override
+  String contacts_searchUsers(int number, String str) {
+    return 'Пошук $number$str користувачів...';
+  }
+
+  @override
+  String contacts_searchRepeaters(int number, String str) {
+    return 'Пошук $number$str ретрансляторів...';
+  }
+
+  @override
+  String contacts_searchRoomServers(int number, String str) {
+    return 'Пошук $number$str серверів кімнат...';
+  }
 
   @override
   String get contacts_noUnreadContacts => 'Немає непрочитаних контактів';
@@ -780,6 +930,12 @@ class AppLocalizationsUk extends AppLocalizations {
   @override
   String get channels_editChannel => 'Редагувати канал';
 
+  @override
+  String get channels_muteChannel => 'Вимкнути сповіщення каналу';
+
+  @override
+  String get channels_unmuteChannel => 'Увімкнути сповіщення каналу';
+
   @override
   String get channels_deleteChannel => 'Видалити канал';
 
@@ -788,6 +944,11 @@ class AppLocalizationsUk extends AppLocalizations {
     return 'Видалити $name? Це не можна скасувати.';
   }
 
+  @override
+  String channels_channelDeleteFailed(String name) {
+    return 'Не вдалося видалити канал \"$name\"';
+  }
+
   @override
   String channels_channelDeleted(String name) {
     return 'Канал «$name» видалено';
@@ -1075,6 +1236,9 @@ class AppLocalizationsUk extends AppLocalizations {
   @override
   String get chat_pathManagement => 'Керування шляхами';
 
+  @override
+  String get chat_ShowAllPaths => 'Показати всі шляхи';
+
   @override
   String get chat_routingMode => 'Режим маршрутизації';
 
@@ -1237,6 +1401,12 @@ class AppLocalizationsUk extends AppLocalizations {
   @override
   String get map_title => 'Карта вузлів';
 
+  @override
+  String get map_lineOfSight => 'Пряма видимість';
+
+  @override
+  String get map_losScreenTitle => 'Пряма видимість';
+
   @override
   String get map_noNodesWithLocation =>
       'Немає вузлів з даними про розташування';
@@ -1355,6 +1525,13 @@ class AppLocalizationsUk extends AppLocalizations {
   @override
   String get map_showSharedMarkers => 'Показувати спільні маркери';
 
+  @override
+  String get map_showGuessedLocations =>
+      'Показати місцезнаходження передбачених вузлів';
+
+  @override
+  String get map_guessedLocation => 'Визначено місцезнаходження';
+
   @override
   String get map_lastSeenTime => 'Час останньої активності';
 
@@ -1675,10 +1852,10 @@ class AppLocalizationsUk extends AppLocalizations {
   String get repeater_cliSubtitle => 'Надіслати команди ретранслятору';
 
   @override
-  String get repeater_neighbours => 'Сусіди';
+  String get repeater_neighbors => 'Сусіди';
 
   @override
-  String get repeater_neighboursSubtitle =>
+  String get repeater_neighborsSubtitle =>
       'Показати сусідів нульового стрибка.';
 
   @override
@@ -2380,7 +2557,7 @@ class AppLocalizationsUk extends AppLocalizations {
   }
 
   @override
-  String get neighbors_repeatersNeighbours => 'Ретранслятори-сусіди';
+  String get neighbors_repeatersNeighbors => 'Ретранслятори-сусіди';
 
   @override
   String get neighbors_noData => 'Дані про сусідів недоступні.';
@@ -2696,6 +2873,15 @@ class AppLocalizationsUk extends AppLocalizations {
   @override
   String get listFilter_all => 'Все';
 
+  @override
+  String get listFilter_favorites => 'Улюблені';
+
+  @override
+  String get listFilter_addToFavorites => 'Додати до улюблених';
+
+  @override
+  String get listFilter_removeFromFavorites => 'Видалити зі списку улюблених';
+
   @override
   String get listFilter_users => 'Користувачі';
 
@@ -2730,6 +2916,145 @@ class AppLocalizationsUk extends AppLocalizations {
   @override
   String get pathTrace_clearTooltip => 'Очистити шлях';
 
+  @override
+  String get losSelectStartEnd =>
+      'Виберіть початковий і кінцевий вузли для LOS.';
+
+  @override
+  String losRunFailed(String error) {
+    return 'Помилка перевірки прямої видимості: $error';
+  }
+
+  @override
+  String get losClearAllPoints => 'Очистити всі пункти';
+
+  @override
+  String get losRunToViewElevationProfile =>
+      'Запустіть LOS, щоб переглянути профіль висоти';
+
+  @override
+  String get losMenuTitle => 'Меню LOS';
+
+  @override
+  String get losMenuSubtitle =>
+      'Торкніться вузлів або утримуйте карту, щоб отримати власні точки';
+
+  @override
+  String get losShowDisplayNodes => 'Показати вузли відображення';
+
+  @override
+  String get losCustomPoints => 'Користувальницькі точки';
+
+  @override
+  String losCustomPointLabel(int index) {
+    return 'Спеціальний $index';
+  }
+
+  @override
+  String get losPointA => 'Точка А';
+
+  @override
+  String get losPointB => 'Точка Б';
+
+  @override
+  String losAntennaA(String value, String unit) {
+    return 'Антена A: $value $unit';
+  }
+
+  @override
+  String losAntennaB(String value, String unit) {
+    return 'Антена B: $value $unit';
+  }
+
+  @override
+  String get losRun => 'Запустіть LOS';
+
+  @override
+  String get losNoElevationData => 'Немає даних про висоту';
+
+  @override
+  String losProfileClear(
+    String distance,
+    String distanceUnit,
+    String clearance,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, чистий LOS, мінімальний зазор $clearance $heightUnit';
+  }
+
+  @override
+  String losProfileBlocked(
+    String distance,
+    String distanceUnit,
+    String obstruction,
+    String heightUnit,
+  ) {
+    return '$distance $distanceUnit, заблоковано $obstruction $heightUnit';
+  }
+
+  @override
+  String get losStatusChecking => 'LOS: перевірка...';
+
+  @override
+  String get losStatusNoData => 'LOS: немає даних';
+
+  @override
+  String losStatusSummary(int clear, int total, int blocked, int unknown) {
+    return 'LOS: $clear/$total очищено, $blocked заблоковано, $unknown невідомо';
+  }
+
+  @override
+  String get losErrorElevationUnavailable =>
+      'Дані про висоту недоступні для одного чи кількох зразків.';
+
+  @override
+  String get losErrorInvalidInput =>
+      'Недійсні дані про точки/висоту для розрахунку LOS.';
+
+  @override
+  String get losRenameCustomPoint => 'Перейменуйте спеціальну точку';
+
+  @override
+  String get losPointName => 'Назва точки';
+
+  @override
+  String get losShowPanelTooltip => 'Показати панель LOS';
+
+  @override
+  String get losHidePanelTooltip => 'Приховати панель LOS';
+
+  @override
+  String get losElevationAttribution =>
+      'Дані про висоту: Open-Meteo (CC BY 4.0)';
+
+  @override
+  String get losLegendRadioHorizon => 'Радіогоризонт';
+
+  @override
+  String get losLegendLosBeam => 'Лінія прямої видимості';
+
+  @override
+  String get losLegendTerrain => 'Рельєф';
+
+  @override
+  String get losFrequencyLabel => 'Частота';
+
+  @override
+  String get losFrequencyInfoTooltip => 'Переглянути деталі розрахунку';
+
+  @override
+  String get losFrequencyDialogTitle => 'Розрахунок радіогоризонту';
+
+  @override
+  String losFrequencyDialogDescription(
+    double baselineK,
+    double baselineFreq,
+    double frequencyMHz,
+    double kFactor,
+  ) {
+    return 'Починаючи з k=$baselineK на $baselineFreq МГц, обчислення коригує k-фактор для поточного діапазону $frequencyMHz МГц, який визначає викривлену межу радіогоризонту.';
+  }
+
   @override
   String get contacts_pathTrace => 'Трасування шляхів';
 
@@ -2907,4 +3232,90 @@ class AppLocalizationsUk extends AppLocalizations {
   @override
   String get settings_gpxExportShareSubject =>
       'експорт даних карти meshcore-open у форматі GPX';
+
+  @override
+  String get snrIndicator_nearByRepeaters => 'Ближні ретранслятори';
+
+  @override
+  String get snrIndicator_lastSeen => 'Останній раз бачили';
+
+  @override
+  String get contactsSettings_title => 'Налаштування контактів';
+
+  @override
+  String get contactsSettings_autoAddTitle => 'Автоматичне виявлення';
+
+  @override
+  String get contactsSettings_otherTitle =>
+      'Інші налаштування, пов\'язані з контактами';
+
+  @override
+  String get contactsSettings_autoAddUsersTitle =>
+      'Автоматично додавати користувачів';
+
+  @override
+  String get contactsSettings_autoAddUsersSubtitle =>
+      'Дозволити супутникові автоматично додавати виявлених користувачів';
+
+  @override
+  String get contactsSettings_autoAddRepeatersTitle =>
+      'Автоматично додавати повторювачі';
+
+  @override
+  String get contactsSettings_autoAddRepeatersSubtitle =>
+      'Дозволити супутнику автоматично додавати виявлені ретранслятори';
+
+  @override
+  String get contactsSettings_autoAddRoomServersTitle =>
+      'Автоматично додавати сервери кімнат';
+
+  @override
+  String get contactsSettings_autoAddRoomServersSubtitle =>
+      'Дозволити супровіднику автоматично додавати виявлені сервери кімнат.';
+
+  @override
+  String get contactsSettings_autoAddSensorsTitle =>
+      'Автоматично додавати датчики';
+
+  @override
+  String get contactsSettings_autoAddSensorsSubtitle =>
+      'Дозволити супровіднику автоматично додавати виявлені сенсори';
+
+  @override
+  String get contactsSettings_overwriteOldestTitle => 'Перезаписати найстаріше';
+
+  @override
+  String get contactsSettings_overwriteOldestSubtitle =>
+      'Коли список контактів заповнений, найстарший контакт без позначки улюбленого буде замінений.';
+
+  @override
+  String get discoveredContacts_Title => 'Виявлені контакти';
+
+  @override
+  String get discoveredContacts_noMatching =>
+      'Відповідних контактів не знайдено';
+
+  @override
+  String get discoveredContacts_searchHint => 'Знайти виявлені контакти';
+
+  @override
+  String get discoveredContacts_contactAdded => 'Контакт додано';
+
+  @override
+  String get discoveredContacts_addContact => 'Додати контакт';
+
+  @override
+  String get discoveredContacts_copyContact =>
+      'Копіювати контакт у буфер обміну';
+
+  @override
+  String get discoveredContacts_deleteContact => 'Видалити контакт';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Видалити всі виявлені контакти';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Ви впевнені, що хочете видалити всі виявлені контакти?';
 }

lib/l10n/app_nl.arb

@@ -1,4 +1,12 @@
 {
+  "channels_channelDeleteFailed": "Kan kanaal {name} niet verwijderen",
+  "@channels_channelDeleteFailed": {
+    "placeholders": {
+      "name": {
+        "type": "String"
+      }
+    }
+  },
   "@@locale": "nl",
   "appTitle": "MeshCore Open",
   "nav_contacts": "Contacten",
@@ -334,6 +342,8 @@
   "channels_publicChannel": "Open kanaal",
   "channels_privateChannel": "Private kanaal",
   "channels_editChannel": "Kanaal bewerken",
+  "channels_muteChannel": "Kanaal dempen",
+  "channels_unmuteChannel": "Kanaal dempen opheffen",
   "channels_deleteChannel": "Kanaal verwijderen",
   "channels_deleteChannelConfirm": "Verwijderen \"{name}\"? Dit kan niet worden teruggedraaid.",
   "@channels_deleteChannelConfirm": {
@@ -1351,12 +1361,12 @@
       }
     }
   },
-  "repeater_neighbours": "Buren",
+  "repeater_neighbors": "Buren",
-  "repeater_neighboursSubtitle": "Bekijk nul hops buren.",
+  "repeater_neighborsSubtitle": "Bekijk nul hops buren.",
   "neighbors_receivedData": "Ontvangen Buurdata",
   "neighbors_requestTimedOut": "Buren vragen om tijdelijk uitgeschakeld.",
   "neighbors_errorLoading": "Fout bij het laden van buren: {error}",
-  "neighbors_repeatersNeighbours": "Herhalingen Buren",
+  "neighbors_repeatersNeighbors": "Herhalingen Buren",
   "neighbors_noData": "Geen gegevens van buren beschikbaar.",
   "channels_createPrivateChannelDesc": "Beveiligd met een geheime sleutel.",
   "channels_createPrivateChannel": "Maak een Privé Kanaal",
@@ -1555,6 +1565,8 @@
   "contacts_floodAdvert": "Overstromingsadvertentie",
   "contacts_copyAdvertToClipboard": "Advert naar klembord kopiëren",
   "appSettings_languageRu": "Russisch",
+  "appSettings_enableMessageTracing": "Berichttracking inschakelen",
+  "appSettings_enableMessageTracingSubtitle": "Gedetailleerde routerings- en timing-metadata voor berichten weergeven",
   "contacts_clipboardEmpty": "Knipbord is leeg.",
   "contacts_addContactFromClipboard": "Contact uit klembord toevoegen",
   "contacts_contactImported": "Contact is geïmporteerd.",
@@ -1593,8 +1605,259 @@
   "map_runTrace": "Padeshulp traceren",
   "scanner_enableBluetooth": "Activeer Bluetooth",
   "scanner_bluetoothOffMessage": "Zorg ervoor dat Bluetooth is ingeschakeld om naar apparaten te zoeken.",
+  "scanner_chromeRequired": "Chrome-browser vereist",
+  "scanner_chromeRequiredMessage": "Deze webapplicatie vereist Google Chrome of een op Chromium gebaseerde browser voor Bluetooth-ondersteuning.",
   "scanner_bluetoothOff": "Bluetooth is uitgeschakeld",
+  "snrIndicator_lastSeen": "Laatst gezien",
+  "snrIndicator_nearByRepeaters": "Nabije herhalingseenheden",
+  "chat_ShowAllPaths": "Toon alle paden",
   "settings_clientRepeat": "Herhalen: Afgekoppeld",
   "settings_clientRepeatSubtitle": "Laat dit apparaat de mesh-pakketten opnieuw verzenden voor andere apparaten.",
-  "settings_clientRepeatFreqWarning": "Om een signaal buiten het netwerk te versturen, zijn frequenties van 433, 869 of 918 MHz vereist."
+  "settings_clientRepeatFreqWarning": "Om een signaal buiten het netwerk te versturen, zijn frequenties van 433, 869 of 918 MHz vereist.",
+  "settings_aboutOpenMeteoAttribution": "LOS-hoogtegegevens: Open-Meteo (CC BY 4.0)",
+  "appSettings_unitsTitle": "Eenheden",
+  "appSettings_unitsMetric": "Metrisch (m / km)",
+  "appSettings_unitsImperial": "Imperiaal (ft / mi)",
+  "map_lineOfSight": "Zichtlijn",
+  "map_losScreenTitle": "Zichtlijn",
+  "losSelectStartEnd": "Selecteer begin- en eindknooppunten voor LOS.",
+  "losRunFailed": "Zichtlijncontrole mislukt: {error}",
+  "@losRunFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "losClearAllPoints": "Wis alle punten",
+  "losRunToViewElevationProfile": "Voer LOS uit om het hoogteprofiel te bekijken",
+  "losMenuTitle": "LOS-menu",
+  "losMenuSubtitle": "Tik op knooppunten of druk lang op de kaart voor aangepaste punten",
+  "losShowDisplayNodes": "Toon weergaveknooppunten",
+  "losCustomPoints": "Aangepaste punten",
+  "losCustomPointLabel": "Aangepast {index}",
+  "@losCustomPointLabel": {
+    "placeholders": {
+      "index": {
+        "type": "int"
+      }
+    }
+  },
+  "losPointA": "Punt A",
+  "losPointB": "Punt B",
+  "losAntennaA": "Antenne A: {value} {unit}",
+  "@losAntennaA": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losAntennaB": "Antenne B: {value} {unit}",
+  "@losAntennaB": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losRun": "Voer LOS uit",
+  "losNoElevationData": "Geen hoogtegegevens",
+  "losProfileClear": "{distance} {distanceUnit}, vrije LOS, min. vrije ruimte {clearance} {heightUnit}",
+  "@losProfileClear": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "clearance": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losProfileBlocked": "{distance} {distanceUnit}, geblokkeerd door {obstruction} {heightUnit}",
+  "@losProfileBlocked": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "obstruction": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losStatusChecking": "LOS: controleren...",
+  "losStatusNoData": "LOS: geen gegevens",
+  "losStatusSummary": "LOS: {clear}/{total} gewist, {blocked} geblokkeerd, {unknown} onbekend",
+  "@losStatusSummary": {
+    "placeholders": {
+      "clear": {
+        "type": "int"
+      },
+      "total": {
+        "type": "int"
+      },
+      "blocked": {
+        "type": "int"
+      },
+      "unknown": {
+        "type": "int"
+      }
+    }
+  },
+  "losErrorElevationUnavailable": "Hoogtegegevens niet beschikbaar voor een of meer monsters.",
+  "losErrorInvalidInput": "Ongeldige punten/hoogtegegevens voor LOS-berekening.",
+  "losRenameCustomPoint": "Hernoem aangepast punt",
+  "losPointName": "Puntnaam",
+  "losShowPanelTooltip": "Toon LOS-paneel",
+  "losHidePanelTooltip": "LOS-paneel verbergen",
+  "losElevationAttribution": "Hoogtegegevens: Open-Meteo (CC BY 4.0)",
+  "losLegendRadioHorizon": "Radiohorizon",
+  "losLegendLosBeam": "Zichtlijn",
+  "losLegendTerrain": "Terrein",
+  "losFrequencyLabel": "Frequentie",
+  "losFrequencyInfoTooltip": "Bekijk details van de berekening",
+  "losFrequencyDialogTitle": "Berekening van de radiohorizon",
+  "losFrequencyDialogDescription": "Beginnend met k={baselineK} bij {baselineFreq} MHz, wordt bij de berekening de k-factor aangepast voor de huidige {frequencyMHz} MHz-band, die de gebogen radiohorizonkap definieert.",
+  "@losFrequencyDialogDescription": {
+    "description": "Explain how the calculation uses the baseline frequency and derived k-factor.",
+    "placeholders": {
+      "baselineK": {
+        "type": "double"
+      },
+      "baselineFreq": {
+        "type": "double"
+      },
+      "frequencyMHz": {
+        "type": "double"
+      },
+      "kFactor": {
+        "type": "double"
+      }
+    }
+  },
+  "listFilter_removeFromFavorites": "Verwijderen uit favorieten",
+  "listFilter_favorites": "Favorieten",
+  "listFilter_addToFavorites": "Toevoegen aan favorieten",
+  "@contacts_searchFavorites": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchUsers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRepeaters": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRoomServers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "contacts_unread": "Ongelezen",
+  "contacts_searchRepeaters": "Zoek {number}{str} Repeaters...",
+  "contacts_searchContactsNoNumber": "Zoek contacten...",
+  "contacts_searchUsers": "Zoek {number}{str} gebruikers...",
+  "contacts_searchFavorites": "Zoek {number}{str} favorieten...",
+  "contacts_searchRoomServers": "Zoek {number}{str} Room servers...",
+  "contactsSettings_autoAddUsersTitle": "Gebruikers automatisch toevoegen",
+  "contactsSettings_title": "Instellingen voor contacten",
+  "settings_contactSettings": "Contactinstellingen",
+  "contactsSettings_otherTitle": "Andere instellingen voor contactgerelateerde zaken",
+  "contactsSettings_autoAddRepeatersSubtitle": "Sta toe dat de companion automatisch ontdekte repeaters toevoegt",
+  "contactsSettings_autoAddRoomServersTitle": "Automatisch kamerservers toevoegen",
+  "contactsSettings_autoAddRoomServersSubtitle": "Sta toe dat de companion automatisch ontdekte kamer servers toevoegt.",
+  "contactsSettings_autoAddSensorsTitle": "Automatisch sensoren toevoegen",
+  "settings_contactSettingsSubtitle": "Instellingen voor het toevoegen van contacten",
+  "contactsSettings_autoAddTitle": "Automatische detectie",
+  "contactsSettings_autoAddSensorsSubtitle": "Sta toe dat de companion automatisch ontdekte sensoren toevoegt",
+  "contactsSettings_autoAddUsersSubtitle": "Sta toe dat de companion automatisch ontdekte gebruikers toevoegt",
+  "contactsSettings_autoAddRepeatersTitle": "Automatisch herhalingstoestellen toevoegen",
+  "contactsSettings_overwriteOldestTitle": "Overschrijf Oudste",
+  "discoveredContacts_noMatching": "Geen overeenkomende contacten",
+  "discoveredContacts_addContact": "Contact toevoegen",
+  "discoveredContacts_copyContact": "Kopieer contact naar klembord",
+  "discoveredContacts_deleteContact": "Contact verwijderen",
+  "discoveredContacts_Title": "Ontdekte contacten",
+  "discoveredContacts_contactAdded": "Contact toegevoegd",
+  "discoveredContacts_searchHint": "Ontdekte contacten zoeken",
+  "contactsSettings_overwriteOldestSubtitle": "Wanneer de contactenlijst vol is, wordt de oudste niet-favoriete contactpersoon vervangen.",
+  "common_deleteAll": "Alles verwijderen",
+  "discoveredContacts_deleteContactAll": "Verwijder alle ontdekte contacten",
+  "discoveredContacts_deleteContactAllContent": "Weet u zeker dat u alle ontdekte contacten wilt verwijderen?",
+  "map_guessedLocation": "Geroerde locatie",
+  "map_showGuessedLocations": "Toon de voorspelde locaties van de knopen",
+  "connectionChoiceUsbLabel": "USB",
+  "usbScreenSubtitle": "Selecteer een gedetecteerd seriële apparaat en verbind deze direct met uw MeshCore-node.",
+  "connectionChoiceBluetoothLabel": "Bluetooth",
+  "usbScreenTitle": "Verbind via USB",
+  "usbScreenStatus": "Selecteer een USB-apparaat",
+  "usbScreenNote": "USB-serieel is actief op ondersteunde Android-apparaten en desktop-platforms.",
+  "usbScreenEmptyState": "Geen USB-apparaten gevonden. Sluit er een aan en herlaad.",
+  "usbErrorPermissionDenied": "Toegang via USB is geweigerd.",
+  "usbErrorDeviceMissing": "Het geselecteerde USB-apparaat is niet meer beschikbaar.",
+  "usbErrorInvalidPort": "Selecteer een geldig USB-apparaat.",
+  "usbErrorBusy": "Een andere verzoek om een USB-verbinding is al in behandeling.",
+  "usbErrorNotConnected": "Er is geen USB-apparaat aangesloten.",
+  "usbErrorOpenFailed": "Kon het geselecteerde USB-apparaat niet openen.",
+  "usbErrorConnectFailed": "Kon niet verbinding maken met het geselecteerde USB-apparaat.",
+  "usbErrorUnsupported": "USB-serieel is niet ondersteund op deze platform.",
+  "usbErrorAlreadyActive": "Een USB-verbinding is al actief.",
+  "usbErrorNoDeviceSelected": "Geen USB-apparaat is geselecteerd.",
+  "usbErrorPortClosed": "De USB-verbinding is niet actief.",
+  "usbFallbackDeviceName": "Web-serieapparaat",
+  "@usbConnectionFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "usbConnectionFailed": "Fout bij de USB-verbinding: {error}",
+  "usbStatus_notConnected": "Selecteer een USB-apparaat",
+  "usbStatus_connecting": "Verbinding maken met USB-apparaat...",
+  "usbStatus_searching": "Zoeken naar USB-apparaten...",
+  "usbErrorConnectTimedOut": "Verbinding is verbroken. Zorg ervoor dat het apparaat de juiste USB-firmware heeft."
 }

lib/l10n/app_pl.arb

@@ -1,4 +1,12 @@
 {
+  "channels_channelDeleteFailed": "Nie udało się usunąć kanału \"{name}\"",
+  "@channels_channelDeleteFailed": {
+    "placeholders": {
+      "name": {
+        "type": "String"
+      }
+    }
+  },
   "@@locale": "pl",
   "appTitle": "MeshCore Open",
   "nav_contacts": "Kontakty",
@@ -334,6 +342,8 @@
   "channels_publicChannel": "Kanał publiczny",
   "channels_privateChannel": "Prywatny kanał",
   "channels_editChannel": "Edytuj kanał",
+  "channels_muteChannel": "Wycisz kanał",
+  "channels_unmuteChannel": "Wyłącz wyciszenie kanału",
   "channels_deleteChannel": "Usuń kanał",
   "channels_deleteChannelConfirm": "Usuń \"{name}\"? Nie można tego cofnąć.",
   "@channels_deleteChannelConfirm": {
@@ -1351,12 +1361,12 @@
       }
     }
   },
-  "repeater_neighbours": "Sąsiedzi",
+  "repeater_neighbors": "Sąsiedzi",
-  "repeater_neighboursSubtitle": "Wyświetl sąsiedztwo zerowych hopów.",
+  "repeater_neighborsSubtitle": "Wyświetl sąsiedztwo zerowych hopów.",
   "neighbors_receivedData": "Otrzymano dane sąsiedztwa",
   "neighbors_requestTimedOut": "Sąsiedzi proszą o wyłączenie timingu.",
   "neighbors_errorLoading": "Błąd podczas ładowania sąsiadów: {error}",
-  "neighbors_repeatersNeighbours": "Powtarzacze Sąsiedzi",
+  "neighbors_repeatersNeighbors": "Powtarzacze Sąsiedzi",
   "neighbors_noData": "Brak danych dotyczących sąsiadów.",
   "channels_joinPrivateChannelDesc": "Ręcznie wprowadź klucz tajny.",
   "channels_createPrivateChannel": "Utwórz Prywatny Kanał",
@@ -1550,6 +1560,8 @@
   "contacts_chatTraceRoute": "Śledź trasę promienia",
   "appSettings_languageRu": "Rosyjski",
   "appSettings_languageUk": "Ukraińska",
+  "appSettings_enableMessageTracing": "Włącz śledzenie wiadomości",
+  "appSettings_enableMessageTracingSubtitle": "Pokaż szczegółowe metadane trasowania i czasu dla wiadomości",
   "contacts_contactImportFailed": "Kontakt nie został zaimportowany.",
   "contacts_zeroHopAdvert": "Reklama Zero Hop",
   "contacts_floodAdvert": "Reklama powodziowa",
@@ -1592,9 +1604,260 @@
   "map_removeLast": "Usuń ostatni",
   "map_tapToAdd": "Kliknij na węzły, aby dodać je do ścieżki.",
   "scanner_bluetoothOffMessage": "Prosimy włączyć Bluetooth, aby przeskanować urządzenia.",
+  "scanner_chromeRequired": "Wymagana przeglądarka Chrome",
+  "scanner_chromeRequiredMessage": "Ta aplikacja internetowa wymaga przeglądarki Google Chrome lub opartej na Chromium do obsługi Bluetooth.",
   "scanner_bluetoothOff": "Bluetooth jest wyłączony",
   "scanner_enableBluetooth": "Włącz Bluetooth",
+  "snrIndicator_lastSeen": "Ostatnio widziany",
+  "snrIndicator_nearByRepeaters": "Nadajniki w pobliżu",
+  "chat_ShowAllPaths": "Pokaż wszystkie ścieżki",
   "settings_clientRepeatSubtitle": "Pozwól temu urządzeniu powtarzać pakiety danych dla innych urządzeń.",
   "settings_clientRepeat": "Powtórzenie: Niezależne od sieci",
-  "settings_clientRepeatFreqWarning": "Powtórka poza siecią wymaga częstotliwości 433, 869 lub 918 MHz."
+  "settings_clientRepeatFreqWarning": "Powtórka poza siecią wymaga częstotliwości 433, 869 lub 918 MHz.",
+  "settings_aboutOpenMeteoAttribution": "Dane wysokościowe LOS: Open-Meteo (CC BY 4.0)",
+  "appSettings_unitsTitle": "Jednostki",
+  "appSettings_unitsMetric": "Metryczne (m / km)",
+  "appSettings_unitsImperial": "Imperialne (ft / mi)",
+  "map_lineOfSight": "Linia wzroku",
+  "map_losScreenTitle": "Linia wzroku",
+  "losSelectStartEnd": "Wybierz węzły początkowe i końcowe dla LOS.",
+  "losRunFailed": "Sprawdzenie pola widzenia nie powiodło się: {error}",
+  "@losRunFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "losClearAllPoints": "Wyczyść wszystkie punkty",
+  "losRunToViewElevationProfile": "Uruchom LOS, aby wyświetlić profil wysokości",
+  "losMenuTitle": "Menu LOS",
+  "losMenuSubtitle": "Stuknij węzły lub naciśnij i przytrzymaj mapę, aby uzyskać niestandardowe punkty",
+  "losShowDisplayNodes": "Pokaż węzły wyświetlające",
+  "losCustomPoints": "Punkty niestandardowe",
+  "losCustomPointLabel": "Niestandardowe {index}",
+  "@losCustomPointLabel": {
+    "placeholders": {
+      "index": {
+        "type": "int"
+      }
+    }
+  },
+  "losPointA": "Punkt A",
+  "losPointB": "Punkt B",
+  "losAntennaA": "Antena A: {value} {unit}",
+  "@losAntennaA": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losAntennaB": "Antena B: {value} {unit}",
+  "@losAntennaB": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losRun": "Uruchom LOS-a",
+  "losNoElevationData": "Brak danych o wysokości",
+  "losProfileClear": "{distance} {distanceUnit}, czysty LOS, minimalny prześwit {clearance} {heightUnit}",
+  "@losProfileClear": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "clearance": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losProfileBlocked": "{distance} {distanceUnit}, zablokowane przez {obstruction} {heightUnit}",
+  "@losProfileBlocked": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "obstruction": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losStatusChecking": "LOS: sprawdzam...",
+  "losStatusNoData": "LOS: brak danych",
+  "losStatusSummary": "LOS: {clear}/{total} jasne, {blocked} zablokowane, {unknown} nieznane",
+  "@losStatusSummary": {
+    "placeholders": {
+      "clear": {
+        "type": "int"
+      },
+      "total": {
+        "type": "int"
+      },
+      "blocked": {
+        "type": "int"
+      },
+      "unknown": {
+        "type": "int"
+      }
+    }
+  },
+  "losErrorElevationUnavailable": "Dane dotyczące wysokości są niedostępne dla jednej lub większej liczby próbek.",
+  "losErrorInvalidInput": "Nieprawidłowe dane punktów/wysokości do obliczenia LOS.",
+  "losRenameCustomPoint": "Zmień nazwę punktu niestandardowego",
+  "losPointName": "Nazwa punktu",
+  "losShowPanelTooltip": "Pokaż panel LOS",
+  "losHidePanelTooltip": "Ukryj panel LOS",
+  "losElevationAttribution": "Dane dotyczące wysokości: Open-Meteo (CC BY 4.0)",
+  "losLegendRadioHorizon": "Horyzont radiowy",
+  "losLegendLosBeam": "Linia widoczności",
+  "losLegendTerrain": "Teren",
+  "losFrequencyLabel": "Częstotliwość",
+  "losFrequencyInfoTooltip": "Zobacz szczegóły obliczenia",
+  "losFrequencyDialogTitle": "Obliczanie horyzontu radiowego",
+  "losFrequencyDialogDescription": "Zaczynając od k={baselineK} przy {baselineFreq} MHz, obliczenia korygują współczynnik k dla bieżącego pasma {frequencyMHz} MHz, które definiuje zakrzywiony limit horyzontu radiowego.",
+  "@losFrequencyDialogDescription": {
+    "description": "Explain how the calculation uses the baseline frequency and derived k-factor.",
+    "placeholders": {
+      "baselineK": {
+        "type": "double"
+      },
+      "baselineFreq": {
+        "type": "double"
+      },
+      "frequencyMHz": {
+        "type": "double"
+      },
+      "kFactor": {
+        "type": "double"
+      }
+    }
+  },
+  "listFilter_removeFromFavorites": "Usuń z ulubionych",
+  "listFilter_addToFavorites": "Dodaj do ulubionych",
+  "listFilter_favorites": "Ulubione",
+  "@contacts_searchFavorites": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchUsers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRepeaters": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRoomServers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "contacts_unread": "Nieprzeczytane",
+  "contacts_searchContactsNoNumber": "Wyszukaj kontakty...",
+  "contacts_searchFavorites": "Wyszukaj {number}{str} ulubione...",
+  "contacts_searchRoomServers": "Wyszukaj {number}{str} serwerów Room...",
+  "contacts_searchUsers": "Wyszukaj {number}{str} Użytkowników...",
+  "contacts_searchRepeaters": "Wyszukaj {number}{str} powtórników...",
+  "contactsSettings_title": "Ustawienia kontaktów",
+  "settings_contactSettingsSubtitle": "Ustawienia dotyczące sposobu dodawania kontaktów",
+  "contactsSettings_autoAddUsersSubtitle": "Pozwól towarzyszowi automatycznie dodawać znalezione użytkowników.",
+  "contactsSettings_autoAddRepeatersTitle": "Automatyczne dodawanie powtarzalników",
+  "contactsSettings_autoAddRepeatersSubtitle": "Zezwól na automatyczne dodawanie odkrytych repeaterów przez towarzysza.",
+  "contactsSettings_autoAddRoomServersTitle": "Automatycznie dodaj serwery pokojowe",
+  "contactsSettings_autoAddUsersTitle": "Automatycznie dodaj użytkowników",
+  "settings_contactSettings": "Ustawienia kontaktowe",
+  "contactsSettings_otherTitle": "Inne ustawienia związane z kontaktami",
+  "contactsSettings_autoAddTitle": "Automatyczne odnajdywanie",
+  "contactsSettings_autoAddRoomServersSubtitle": "Zezwól towarzyszowi na automatyczne dodawanie znalezionych serwerów pokojowych.",
+  "contactsSettings_autoAddSensorsTitle": "Automatycznie dodaj czujniki",
+  "discoveredContacts_searchHint": "Wyszukaj odkryte kontakty",
+  "discoveredContacts_contactAdded": "Kontakt dodany",
+  "discoveredContacts_addContact": "Dodaj kontakt",
+  "discoveredContacts_copyContact": "Kopiuj kontakt do schowka",
+  "contactsSettings_overwriteOldestTitle": "Nadpisz najstarszy",
+  "discoveredContacts_Title": "Odkryte Kontakty",
+  "contactsSettings_autoAddSensorsSubtitle": "Zezwól towarzyszowi na automatyczne dodawanie wykrytych czujników.",
+  "discoveredContacts_noMatching": "Brak pasujących kontaktów",
+  "discoveredContacts_deleteContact": "Usuń kontakt",
+  "contactsSettings_overwriteOldestSubtitle": "Gdy lista kontaktów jest pełna, najstarszy nieulubiony kontakt zostanie zastąpiony.",
+  "common_deleteAll": "Usuń wszystko",
+  "discoveredContacts_deleteContactAllContent": "Czy na pewno chcesz usunąć wszystkie znalezione kontakty?",
+  "discoveredContacts_deleteContactAll": "Usuń wszystkie odkryte kontakty",
+  "map_guessedLocation": "Wydana lokalizacja",
+  "map_showGuessedLocations": "Wyświetl lokalizacje zgadanych węzłów",
+  "usbScreenSubtitle": "Wybierz wykryty urządzenie szeregowe i podłącz je bezpośrednio do swojego węzła MeshCore.",
+  "usbScreenTitle": "Połącz przez USB",
+  "connectionChoiceUsbLabel": "USB",
+  "connectionChoiceBluetoothLabel": "Bluetooth",
+  "usbScreenStatus": "Wybierz urządzenie USB",
+  "usbScreenNote": "Port szeregowy USB jest aktywny na urządzeniach z systemem Android i platformach stacjonarnych, które go obsługują.",
+  "usbScreenEmptyState": "Nie znaleziono żadnych urządzeń USB. Podłącz jedno i zaktualizuj.",
+  "usbErrorPermissionDenied": "Zostało odrzucone żądanie dostępu przez USB.",
+  "usbErrorDeviceMissing": "Wybór urządzenia USB już nie jest dostępny.",
+  "usbErrorInvalidPort": "Wybierz prawidłowe urządzenie USB.",
+  "usbErrorBusy": "Kolejne żądanie połączenia przez USB jest już w trakcie realizacji.",
+  "usbErrorNotConnected": "Brak podłączonego urządzenia USB.",
+  "usbErrorOpenFailed": "Nie udało się otworzyć wybranego urządzenia USB.",
+  "usbErrorConnectFailed": "Nie udało się połączyć z wybranym urządzeniem USB.",
+  "usbErrorUnsupported": "Port szeregowy USB nie jest obsługiwany na tym urządzeniu.",
+  "usbErrorAlreadyActive": "Połączenie USB jest już aktywne.",
+  "usbErrorNoDeviceSelected": "Nie został wybrany żaden urządzenie USB.",
+  "usbErrorPortClosed": "Połączenie USB nie jest aktywne.",
+  "usbFallbackDeviceName": "Urządzenie do komunikacji przez sieć (seria)",
+  "@usbConnectionFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "usbStatus_searching": "Wyszukiwanie urządzeń USB...",
+  "usbStatus_connecting": "Połączenie z urządzeniem USB...",
+  "usbStatus_notConnected": "Wybierz urządzenie USB",
+  "usbConnectionFailed": "Błąd połączenia USB: {error}",
+  "usbErrorConnectTimedOut": "Połączenie nie zostało nawiązane. Upewnij się, że urządzenie posiada oprogramowanie \"USB Companion\"."
 }

lib/l10n/app_pt.arb

@@ -1,4 +1,12 @@
 {
+  "channels_channelDeleteFailed": "Falha ao excluir o canal \"{name}\"",
+  "@channels_channelDeleteFailed": {
+    "placeholders": {
+      "name": {
+        "type": "String"
+      }
+    }
+  },
   "@@locale": "pt",
   "appTitle": "MeshCore Open",
   "nav_contacts": "Contactos",
@@ -334,6 +342,8 @@
   "channels_publicChannel": "Canal público",
   "channels_privateChannel": "Canal privado",
   "channels_editChannel": "Editar canal",
+  "channels_muteChannel": "Silenciar canal",
+  "channels_unmuteChannel": "Ativar canal",
   "channels_deleteChannel": "Excluir canal",
   "channels_deleteChannelConfirm": "Excluir \"{name}\"? Não pode ser desfeito.",
   "@channels_deleteChannelConfirm": {
@@ -1351,12 +1361,12 @@
       }
     }
   },
-  "repeater_neighbours": "Vizinhos",
+  "repeater_neighbors": "Vizinhos",
   "neighbors_receivedData": "Dados dos Vizinhos Recebidos",
-  "repeater_neighboursSubtitle": "Visualizar vizinhos de salto zero.",
+  "repeater_neighborsSubtitle": "Visualizar vizinhos de salto zero.",
   "neighbors_requestTimedOut": "Vizinhos solicitam tempo limite esgotado.",
   "neighbors_errorLoading": "Erro ao carregar vizinhos: {error}",
-  "neighbors_repeatersNeighbours": "Repetidores Vizinhos",
+  "neighbors_repeatersNeighbors": "Repetidores Vizinhos",
   "neighbors_noData": "Não estão disponíveis dados de vizinhos.",
   "channels_createPrivateChannelDesc": "Protegido com uma chave secreta.",
   "channels_joinPrivateChannelDesc": "Inserir uma chave secreta manualmente.",
@@ -1556,6 +1566,8 @@
   "contacts_copyAdvertToClipboard": "Copiar Anúncio para Área de Transferência",
   "contacts_addContactFromClipboard": "Adicionar Contato da Área de Transferência",
   "appSettings_languageRu": "Russo",
+  "appSettings_enableMessageTracing": "Ativar rastreamento de mensagens",
+  "appSettings_enableMessageTracingSubtitle": "Mostrar metadados detalhados de roteamento e tempo para as mensagens",
   "contacts_ShareContact": "Copiar contato para Área de Transferência",
   "contacts_contactImportFailed": "Contato falhou ao ser importado.",
   "contacts_zeroHopContactAdvertSent": "Enviou contato por anúncio.",
@@ -1594,7 +1606,258 @@
   "scanner_enableBluetooth": "Ative o Bluetooth",
   "scanner_bluetoothOff": "Bluetooth está desativado",
   "scanner_bluetoothOffMessage": "Por favor, ative o Bluetooth para escanear por dispositivos.",
+  "scanner_chromeRequired": "Navegador Chrome necessário",
+  "scanner_chromeRequiredMessage": "Esta aplicação web requer o Google Chrome ou um navegador baseado no Chromium para suporte de Bluetooth.",
+  "snrIndicator_nearByRepeaters": "Repetidores Próximos",
+  "snrIndicator_lastSeen": "Visto pela última vez",
+  "chat_ShowAllPaths": "Mostrar todos os caminhos",
   "settings_clientRepeatFreqWarning": "A repetição fora da rede requer frequências de 433, 869 ou 918 MHz.",
   "settings_clientRepeat": "Repetição sem rede",
-  "settings_clientRepeatSubtitle": "Permita que este dispositivo repita pacotes de rede para outros dispositivos."
+  "settings_clientRepeatSubtitle": "Permita que este dispositivo repita pacotes de rede para outros dispositivos.",
+  "settings_aboutOpenMeteoAttribution": "Dados de elevação LOS: Open-Meteo (CC BY 4.0)",
+  "appSettings_unitsTitle": "Unidades",
+  "appSettings_unitsMetric": "Métrico (m/km)",
+  "appSettings_unitsImperial": "Imperial (ft/mi)",
+  "map_lineOfSight": "Linha de visão",
+  "map_losScreenTitle": "Linha de visão",
+  "losSelectStartEnd": "Selecione nós iniciais e finais para LOS.",
+  "losRunFailed": "Falha na verificação da linha de visão: {error}",
+  "@losRunFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "losClearAllPoints": "Limpe todos os pontos",
+  "losRunToViewElevationProfile": "Execute o LOS para visualizar o perfil de elevação",
+  "losMenuTitle": "Menu LOS",
+  "losMenuSubtitle": "Toque nos nós ou mantenha pressionado o mapa para obter pontos personalizados",
+  "losShowDisplayNodes": "Mostrar nós de exibição",
+  "losCustomPoints": "Pontos personalizados",
+  "losCustomPointLabel": "{index} personalizado",
+  "@losCustomPointLabel": {
+    "placeholders": {
+      "index": {
+        "type": "int"
+      }
+    }
+  },
+  "losPointA": "Ponto A",
+  "losPointB": "Ponto B",
+  "losAntennaA": "Antena A: {value} {unit}",
+  "@losAntennaA": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losAntennaB": "Antena B: {value} {unit}",
+  "@losAntennaB": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losRun": "Executar LOS",
+  "losNoElevationData": "Sem dados de elevação",
+  "losProfileClear": "{distance} {distanceUnit}, limpar LOS, liberação mínima {clearance} {heightUnit}",
+  "@losProfileClear": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "clearance": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losProfileBlocked": "{distance} {distanceUnit}, bloqueado por {obstruction} {heightUnit}",
+  "@losProfileBlocked": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "obstruction": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losStatusChecking": "LOS: verificando...",
+  "losStatusNoData": "LOS: sem dados",
+  "losStatusSummary": "LOS: {clear}/{total} limpo, {blocked} bloqueado, {unknown} desconhecido",
+  "@losStatusSummary": {
+    "placeholders": {
+      "clear": {
+        "type": "int"
+      },
+      "total": {
+        "type": "int"
+      },
+      "blocked": {
+        "type": "int"
+      },
+      "unknown": {
+        "type": "int"
+      }
+    }
+  },
+  "losErrorElevationUnavailable": "Dados de elevação indisponíveis para uma ou mais amostras.",
+  "losErrorInvalidInput": "Dados de pontos/elevação inválidos para cálculo de LOS.",
+  "losRenameCustomPoint": "Renomear ponto personalizado",
+  "losPointName": "Nome do ponto",
+  "losShowPanelTooltip": "Mostrar painel LOS",
+  "losHidePanelTooltip": "Ocultar painel LOS",
+  "losElevationAttribution": "Dados de elevação: Open-Meteo (CC BY 4.0)",
+  "losLegendRadioHorizon": "Horizonte de rádio",
+  "losLegendLosBeam": "Linha de visada",
+  "losLegendTerrain": "Terreno",
+  "losFrequencyLabel": "Frequência",
+  "losFrequencyInfoTooltip": "Ver detalhes do cálculo",
+  "losFrequencyDialogTitle": "Cálculo do horizonte de rádio",
+  "losFrequencyDialogDescription": "Começando em k={baselineK} em {baselineFreq} MHz, o cálculo ajusta o fator k para a banda atual de {frequencyMHz} MHz, que define o limite do horizonte de rádio curvo.",
+  "@losFrequencyDialogDescription": {
+    "description": "Explain how the calculation uses the baseline frequency and derived k-factor.",
+    "placeholders": {
+      "baselineK": {
+        "type": "double"
+      },
+      "baselineFreq": {
+        "type": "double"
+      },
+      "frequencyMHz": {
+        "type": "double"
+      },
+      "kFactor": {
+        "type": "double"
+      }
+    }
+  },
+  "listFilter_addToFavorites": "Adicionar aos favoritos",
+  "listFilter_removeFromFavorites": "Remover da lista de favoritos",
+  "listFilter_favorites": "Favoritos",
+  "@contacts_searchFavorites": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchUsers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRepeaters": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRoomServers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "contacts_searchRepeaters": "Pesquisar {number}{str} Repetidores...",
+  "contacts_searchFavorites": "Pesquisar {number}{str} Favoritos...",
+  "contacts_searchUsers": "Pesquisar {number}{str} Usuários...",
+  "contacts_searchContactsNoNumber": "Pesquisar Contatos...",
+  "contacts_unread": "Não lido",
+  "contacts_searchRoomServers": "Pesquisar {number}{str} servidores de sala...",
+  "settings_contactSettings": "Configurações de Contato",
+  "contactsSettings_otherTitle": "Outras configurações relacionadas a contatos",
+  "contactsSettings_title": "Configurações de contatos",
+  "contactsSettings_autoAddTitle": "Descoberta Automática",
+  "settings_contactSettingsSubtitle": "Configurações para como os contatos são adicionados",
+  "contactsSettings_autoAddUsersTitle": "Adicionar usuários automaticamente",
+  "contactsSettings_autoAddRepeatersSubtitle": "Permitir que o companheiro adicione automaticamente os repetidores descobertos.",
+  "contactsSettings_autoAddRoomServersTitle": "Adicionar automaticamente servidores de sala",
+  "contactsSettings_overwriteOldestTitle": "Sobrescrever o Mais Antigo",
+  "contactsSettings_autoAddSensorsTitle": "Adicionar sensores automaticamente",
+  "discoveredContacts_Title": "Contatos Descobertos",
+  "contactsSettings_autoAddUsersSubtitle": "Permitir que o companheiro adicione automaticamente os usuários descobertos.",
+  "contactsSettings_autoAddRepeatersTitle": "Adicionar repetidores automaticamente",
+  "discoveredContacts_noMatching": "Nenhum contato correspondente",
+  "contactsSettings_autoAddRoomServersSubtitle": "Permitir que o companheiro adicione automaticamente os servidores de salas descobertos.",
+  "discoveredContacts_searchHint": "Pesquisar contatos descobertos",
+  "contactsSettings_autoAddSensorsSubtitle": "Permitir que o companheiro adicione automaticamente sensores descobertos.",
+  "discoveredContacts_copyContact": "Copiar Contato para a área de transferência",
+  "discoveredContacts_deleteContact": "Excluir Contato",
+  "discoveredContacts_contactAdded": "Contato adicionado",
+  "discoveredContacts_addContact": "Adicionar Contato",
+  "contactsSettings_overwriteOldestSubtitle": "Quando a lista de contatos estiver cheia, o contato mais antigo não favoritado será substituído.",
+  "common_deleteAll": "Excluir Tudo",
+  "discoveredContacts_deleteContactAll": "Excluir Todos os Contatos Descobertos",
+  "discoveredContacts_deleteContactAllContent": "Tem certeza de que deseja excluir todos os contatos descobertos?",
+  "map_guessedLocation": "Localização estimada",
+  "map_showGuessedLocations": "Mostrar as localizações dos nós estimados",
+  "connectionChoiceUsbLabel": "USB",
+  "connectionChoiceBluetoothLabel": "Bluetooth",
+  "usbScreenTitle": "Conecte via USB",
+  "usbScreenSubtitle": "Selecione um dispositivo serial detectado e conecte-o diretamente ao seu nó MeshCore.",
+  "usbScreenStatus": "Selecione um dispositivo USB",
+  "usbScreenNote": "A comunicação serial via USB está ativa em dispositivos Android e plataformas de desktop compatíveis.",
+  "usbScreenEmptyState": "Nenhum dispositivo USB encontrado. Conecte um e atualize.",
+  "usbErrorPermissionDenied": "A permissão para acesso via USB foi negada.",
+  "usbErrorDeviceMissing": "O dispositivo USB selecionado não está mais disponível.",
+  "usbErrorInvalidPort": "Selecione um dispositivo USB válido.",
+  "usbErrorBusy": "Já existe uma solicitação de conexão USB em andamento.",
+  "usbErrorNotConnected": "Não há nenhum dispositivo USB conectado.",
+  "usbErrorOpenFailed": "Não foi possível abrir o dispositivo USB selecionado.",
+  "usbErrorConnectFailed": "Não foi possível conectar ao dispositivo USB selecionado.",
+  "usbErrorUnsupported": "A comunicação serial via USB não é suportada nesta plataforma.",
+  "usbErrorAlreadyActive": "A conexão USB já está ativa.",
+  "usbErrorNoDeviceSelected": "Nenhum dispositivo USB foi selecionado.",
+  "usbErrorPortClosed": "A conexão USB não está ativa.",
+  "usbFallbackDeviceName": "Dispositivo de Serial para a Web",
+  "@usbConnectionFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "usbStatus_searching": "Procurando por dispositivos USB...",
+  "usbStatus_notConnected": "Selecione um dispositivo USB",
+  "usbConnectionFailed": "Falha na conexão USB: {error}",
+  "usbStatus_connecting": "Conectando ao dispositivo USB...",
+  "usbErrorConnectTimedOut": "A conexão expirou. Verifique se o dispositivo possui o firmware USB Companion."
 }

lib/l10n/app_ru.arb

@@ -1,4 +1,12 @@
 {
+  "channels_channelDeleteFailed": "Не удалось удалить канал {name}.",
+  "@channels_channelDeleteFailed": {
+    "placeholders": {
+      "name": {
+        "type": "String"
+      }
+    }
+  },
   "@@locale": "ru",
   "appTitle": "MeshCore Open",
   "nav_contacts": "Контакты",
@@ -226,6 +234,8 @@
   "channels_publicChannel": "Публичный канал",
   "channels_privateChannel": "Приватный канал",
   "channels_editChannel": "Изменить канал",
+  "channels_muteChannel": "Отключить уведомления канала",
+  "channels_unmuteChannel": "Включить уведомления канала",
   "channels_deleteChannel": "Удалить канал",
   "channels_deleteChannelConfirm": "Удалить \"{name}\"? Это действие нельзя отменить.",
   "channels_channelDeleted": "Канал \"{name}\" удалён",
@@ -467,8 +477,8 @@
   "repeater_telemetrySubtitle": "Просмотр телеметрии датчиков и системной статистики",
   "repeater_cli": "CLI",
   "repeater_cliSubtitle": "Отправка команд репитеру",
-  "repeater_neighbours": "Соседи",
+  "repeater_neighbors": "Соседи",
-  "repeater_neighboursSubtitle": "Просмотр соседей на нулевом хопе.",
+  "repeater_neighborsSubtitle": "Просмотр соседей на нулевом хопе.",
   "repeater_settings": "Настройки",
   "repeater_settingsSubtitle": "Настройка параметров репитера",
   "repeater_statusTitle": "Статус репитера",
@@ -661,7 +671,7 @@
   "neighbors_receivedData": "Полученные данные о соседях",
   "neighbors_requestTimedOut": "Время ожидания данных о соседях истекло.",
   "neighbors_errorLoading": "Ошибка загрузки соседей: {error}",
-  "neighbors_repeatersNeighbours": "Соседи репитеров",
+  "neighbors_repeatersNeighbors": "Соседи репитеров",
   "neighbors_noData": "Данные о соседях недоступны.",
   "neighbors_unknownContact": "Неизвестный {pubkey}",
   "neighbors_heardA ago": "Слышали: {time} назад",
@@ -794,6 +804,8 @@
   "contacts_invalidAdvertFormat": "Недействительные контактные данные",
   "contacts_zeroHopAdvert": "Реклама Zero Hop",
   "appSettings_languageUk": "Українська",
+  "appSettings_enableMessageTracing": "Включить трассировку сообщений",
+  "appSettings_enableMessageTracingSubtitle": "Показывать подробные метаданные о маршрутизации и времени для сообщений",
   "contacts_floodAdvert": "Рекламный поток",
   "contacts_clipboardEmpty": "Буфер обмена пуст.",
   "contacts_copyAdvertToClipboard": "Копировать рекламу в буфер обмена",
@@ -834,7 +846,258 @@
   "scanner_enableBluetooth": "Включите Bluetooth",
   "scanner_bluetoothOff": "Bluetooth выключен",
   "scanner_bluetoothOffMessage": "Пожалуйста, включите Bluetooth, чтобы найти устройства.",
+  "scanner_chromeRequired": "Требуется браузер Chrome",
+  "scanner_chromeRequiredMessage": "Для поддержки Bluetooth в этом веб-приложении требуется Google Chrome или браузер на базе Chromium.",
+  "snrIndicator_nearByRepeaters": "Ближайшие ретрансляторы",
+  "snrIndicator_lastSeen": "Последний раз видели",
+  "chat_ShowAllPaths": "Показать все пути",
   "settings_clientRepeatFreqWarning": "Для работы в режиме \"без подключения к сети\" требуется частота 433, 869 или 918 МГц.",
   "settings_clientRepeatSubtitle": "Позвольте этому устройству повторять пакеты данных для других устройств.",
-  "settings_clientRepeat": "Повторение \"вне сети\""
+  "settings_clientRepeat": "Повторение \"вне сети\"",
+  "settings_aboutOpenMeteoAttribution": "Данные о высоте LOS: Open-Meteo (CC BY 4.0)",
+  "appSettings_unitsTitle": "Единицы",
+  "appSettings_unitsMetric": "Метрическая (м/км)",
+  "appSettings_unitsImperial": "Имперская (ft / mi)",
+  "map_lineOfSight": "Линия видимости",
+  "map_losScreenTitle": "Линия видимости",
+  "losSelectStartEnd": "Выберите начальный и конечный узлы для LOS.",
+  "losRunFailed": "Проверка прямой видимости не удалась: {error}",
+  "@losRunFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "losClearAllPoints": "Очистить все точки",
+  "losRunToViewElevationProfile": "Запустите LOS, чтобы просмотреть профиль высот.",
+  "losMenuTitle": "ЛОС Меню",
+  "losMenuSubtitle": "Коснитесь узлов или нажмите и удерживайте карту для выбора пользовательских точек.",
+  "losShowDisplayNodes": "Показать узлы отображения",
+  "losCustomPoints": "Пользовательские точки",
+  "losCustomPointLabel": "Пользовательский {index}",
+  "@losCustomPointLabel": {
+    "placeholders": {
+      "index": {
+        "type": "int"
+      }
+    }
+  },
+  "losPointA": "Точка А",
+  "losPointB": "Точка Б",
+  "losAntennaA": "Антенна А: {value} {unit}",
+  "@losAntennaA": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losAntennaB": "Антенна Б: {value} {unit}",
+  "@losAntennaB": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losRun": "Запустить ЛОС",
+  "losNoElevationData": "Нет данных о высоте",
+  "losProfileClear": "{distance} {distanceUnit}, свободная зона видимости, минимальный зазор {clearance} {heightUnit}",
+  "@losProfileClear": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "clearance": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losProfileBlocked": "{distance} {distanceUnit}, заблокирован {obstruction} {heightUnit}",
+  "@losProfileBlocked": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "obstruction": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losStatusChecking": "ЛОС: проверяю...",
+  "losStatusNoData": "ЛОС: нет данных",
+  "losStatusSummary": "LOS: {clear}/{total} очищено, {blocked} заблокировано, {unknown} неизвестно.",
+  "@losStatusSummary": {
+    "placeholders": {
+      "clear": {
+        "type": "int"
+      },
+      "total": {
+        "type": "int"
+      },
+      "blocked": {
+        "type": "int"
+      },
+      "unknown": {
+        "type": "int"
+      }
+    }
+  },
+  "losErrorElevationUnavailable": "Данные о высоте недоступны для одного или нескольких образцов.",
+  "losErrorInvalidInput": "Неверные данные о точках/высоте для расчета LOS.",
+  "losRenameCustomPoint": "Переименовать пользовательскую точку",
+  "losPointName": "Имя точки",
+  "losShowPanelTooltip": "Показать панель LOS",
+  "losHidePanelTooltip": "Скрыть панель LOS",
+  "losElevationAttribution": "Данные о высоте: Open-Meteo (CC BY 4.0)",
+  "losLegendRadioHorizon": "Радиогоризонт",
+  "losLegendLosBeam": "Линия прямой видимости",
+  "losLegendTerrain": "Рельеф",
+  "losFrequencyLabel": "Частота",
+  "losFrequencyInfoTooltip": "Просмотреть детали расчёта",
+  "losFrequencyDialogTitle": "Расчёт радиогоризонта",
+  "losFrequencyDialogDescription": "Начиная с k={baselineK} на частоте {baselineFreq} МГц, расчет корректирует коэффициент k для текущего диапазона {frequencyMHz} МГц, который определяет изогнутую границу радиогоризонта.",
+  "@losFrequencyDialogDescription": {
+    "description": "Explain how the calculation uses the baseline frequency and derived k-factor.",
+    "placeholders": {
+      "baselineK": {
+        "type": "double"
+      },
+      "baselineFreq": {
+        "type": "double"
+      },
+      "frequencyMHz": {
+        "type": "double"
+      },
+      "kFactor": {
+        "type": "double"
+      }
+    }
+  },
+  "listFilter_addToFavorites": "Добавить в избранное",
+  "listFilter_favorites": "Избранное",
+  "listFilter_removeFromFavorites": "Удалить из избранного",
+  "@contacts_searchFavorites": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchUsers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRepeaters": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRoomServers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "contacts_searchRepeaters": "Поиск {number}{str} ретрансляторов...",
+  "contacts_searchContactsNoNumber": "Поиск контактов...",
+  "contacts_unread": "Непрочитанное",
+  "contacts_searchRoomServers": "Поиск {number}{str} серверов комнат...",
+  "contacts_searchFavorites": "Поиск {number}{str} избранного...",
+  "contacts_searchUsers": "Поиск {number}{str} пользователей...",
+  "settings_contactSettings": "Настройки контактов",
+  "settings_contactSettingsSubtitle": "Настройки добавления контактов",
+  "contactsSettings_autoAddTitle": "Автоматическое обнаружение",
+  "contactsSettings_title": "Настройки контактов",
+  "contactsSettings_otherTitle": "Другие настройки, связанные с контактами",
+  "contactsSettings_autoAddUsersSubtitle": "Разрешить компаньону автоматически добавлять обнаруженных пользователей",
+  "contactsSettings_autoAddRoomServersTitle": "Автоматически добавлять серверы комнат",
+  "contactsSettings_autoAddSensorsTitle": "Автоматически добавлять датчики",
+  "contactsSettings_autoAddSensorsSubtitle": "Разрешить компаньону автоматически добавлять обнаруженные датчики",
+  "contactsSettings_autoAddUsersTitle": "Автоматически добавлять пользователей",
+  "contactsSettings_overwriteOldestTitle": "Перезаписать самое старое",
+  "contactsSettings_autoAddRepeatersTitle": "Автоматически добавлять ретрансляторы",
+  "contactsSettings_autoAddRepeatersSubtitle": "Разрешить спутнику автоматически добавлять обнаруженные ретрансляторы",
+  "contactsSettings_autoAddRoomServersSubtitle": "Разрешить компаньону автоматически добавлять обнаруженные сервера комнат.",
+  "discoveredContacts_noMatching": "Нет совпадающих контактов",
+  "discoveredContacts_searchHint": "Найденные контакты поиска",
+  "discoveredContacts_contactAdded": "Контакт добавлен",
+  "discoveredContacts_copyContact": "Копировать контакт в буфер обмена",
+  "discoveredContacts_addContact": "Добавить контакт",
+  "discoveredContacts_Title": "Обнаруженные контакты",
+  "discoveredContacts_deleteContact": "Удалить контакт",
+  "contactsSettings_overwriteOldestSubtitle": "Когда список контактов заполнен, будет заменен самый старый контакт, который не находится в избранном.",
+  "common_deleteAll": "Удалить все",
+  "discoveredContacts_deleteContactAllContent": "Вы уверены, что хотите удалить все обнаруженные контакты?",
+  "discoveredContacts_deleteContactAll": "Удалить Все Обнаруженные Контакты",
+  "map_guessedLocation": "Угаданное место",
+  "map_showGuessedLocations": "Отобразить предполагаемые места расположения узлов",
+  "connectionChoiceUsbLabel": "USB",
+  "usbScreenSubtitle": "Выберите обнаруженное устройство с последовательным интерфейсом и подключите его напрямую к вашему узлу MeshCore.",
+  "usbScreenTitle": "Подключение через USB",
+  "connectionChoiceBluetoothLabel": "Bluetooth",
+  "usbScreenStatus": "Выберите USB-устройство",
+  "usbScreenNote": "USB-серийный порт активен на поддерживаемых устройствах Android и на настольных платформах.",
+  "usbScreenEmptyState": "Не обнаружено устройств USB. Подключите одно из них и обновите список.",
+  "usbErrorPermissionDenied": "Запрос на доступ через USB был отклонен.",
+  "usbErrorDeviceMissing": "Выбранное USB-устройство больше недоступно.",
+  "usbErrorInvalidPort": "Выберите действительное USB-устройство.",
+  "usbErrorBusy": "Еще одно запрошенное соединение через USB уже находится в процессе.",
+  "usbErrorNotConnected": "Ни одно USB-устройство не подключено.",
+  "usbErrorOpenFailed": "Не удалось открыть выбранное USB-устройство.",
+  "usbErrorConnectFailed": "Не удалось установить соединение с выбранным USB-устройством.",
+  "usbErrorUnsupported": "Поддержка последовательного USB отсутствует на данной платформе.",
+  "usbErrorAlreadyActive": "USB-соединение уже установлено.",
+  "usbErrorNoDeviceSelected": "Не было выбрано ни одно устройство USB.",
+  "usbErrorPortClosed": "USB-соединение не установлено.",
+  "usbFallbackDeviceName": "Устройство для последовательного подключения к сети",
+  "@usbConnectionFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "usbStatus_searching": "Поиск USB-устройств...",
+  "usbStatus_connecting": "Подключение к USB-устройству...",
+  "usbConnectionFailed": "Не удалось установить соединение через USB: {error}",
+  "usbStatus_notConnected": "Выберите USB-устройство",
+  "usbErrorConnectTimedOut": "Соединение не установлено. Убедитесь, что устройство имеет установленное программное обеспечение USB Companion."
 }

lib/l10n/app_sk.arb

@@ -1,4 +1,12 @@
 {
+  "channels_channelDeleteFailed": "Kanál \"{name}\" sa nepodarilo odstrániť",
+  "@channels_channelDeleteFailed": {
+    "placeholders": {
+      "name": {
+        "type": "String"
+      }
+    }
+  },
   "@@locale": "sk",
   "appTitle": "MeshCore Open",
   "nav_contacts": "Kontakty",
@@ -334,6 +342,8 @@
   "channels_publicChannel": "Veľké verejne kanály",
   "channels_privateChannel": "Osobné kanál",
   "channels_editChannel": "Upraviť kanál",
+  "channels_muteChannel": "Stlmiť kanál",
+  "channels_unmuteChannel": "Zrušiť stlmenie kanála",
   "channels_deleteChannel": "Odstrániť kanál",
   "channels_deleteChannelConfirm": "Odstrániť \"{name}\"? To sa nedá zrušiť.",
   "@channels_deleteChannelConfirm": {
@@ -1351,12 +1361,12 @@
       }
     }
   },
-  "repeater_neighboursSubtitle": "Zobraziť susedné body bez skokov.",
+  "repeater_neighborsSubtitle": "Zobraziť susedné body bez skokov.",
   "neighbors_requestTimedOut": "Súďia žiadajú o časové ukončenie.",
   "neighbors_receivedData": "Obdielo dáta suseda",
-  "repeater_neighbours": "Súsezný",
+  "repeater_neighbors": "Súsezný",
   "neighbors_errorLoading": "Chyba pri načítaní susedov: {error}",
-  "neighbors_repeatersNeighbours": "Opakovadlá Súsezná",
+  "neighbors_repeatersNeighbors": "Opakovadlá Súsezná",
   "neighbors_noData": "Nie je dostupná žiadna informácia o susedoch.",
   "channels_createPrivateChannel": "Vytvorte súkromný kanál",
   "channels_joinPrivateChannel": "Pripojiť sa k súkromnému kanálu",
@@ -1556,6 +1566,8 @@
   "contacts_copyAdvertToClipboard": "Kopírovať reklamu do schránky",
   "contacts_invalidAdvertFormat": "Neplatné kontaktné údaje",
   "appSettings_languageRu": "Ruština",
+  "appSettings_enableMessageTracing": "Povoliť sledovanie správ",
+  "appSettings_enableMessageTracingSubtitle": "Zobraziť podrobné metadáta o smerovaní a časovaní správ",
   "contacts_addContactFromClipboard": "Pridať kontakt z schránky",
   "contacts_contactImported": "Kontakt bol importovaný.",
   "contacts_zeroHopContactAdvertSent": "Poslal kontakt cez inzerát.",
@@ -1592,9 +1604,260 @@
   "map_runTrace": "Spustiť trasovaním cesty",
   "map_pathTraceCancelled": "Zrušenie stopáže cesty bolo zrušené.",
   "scanner_bluetoothOffMessage": "Prosím, zapnite Bluetooth, aby ste mohli skenovať pre zariadenia.",
+  "scanner_chromeRequired": "Vyžaduje sa prehliadač Chrome",
+  "scanner_chromeRequiredMessage": "Táto webová aplikácia vyžaduje Google Chrome alebo prehliadač založený na Chromium pre podporu Bluetooth.",
   "scanner_bluetoothOff": "Bluetooth je vypnutý",
   "scanner_enableBluetooth": "Povolte Bluetooth",
+  "snrIndicator_lastSeen": "Naposledy videný",
+  "snrIndicator_nearByRepeaters": "Miestne opakovače",
+  "chat_ShowAllPaths": "Zobraziť všetky cesty",
   "settings_clientRepeat": "Opätovné použitie bez elektrickej siete",
   "settings_clientRepeatFreqWarning": "Použitie off-grid systému vyžaduje frekvencie 433, 869 alebo 918 MHz.",
-  "settings_clientRepeatSubtitle": "Umožnite, aby toto zariadenie opakovávalo siete pre ostatných."
+  "settings_clientRepeatSubtitle": "Umožnite, aby toto zariadenie opakovávalo siete pre ostatných.",
+  "settings_aboutOpenMeteoAttribution": "Údaje o nadmorskej výške LOS: Open-Meteo (CC BY 4.0)",
+  "appSettings_unitsTitle": "Jednotky",
+  "appSettings_unitsMetric": "Metrické (m / km)",
+  "appSettings_unitsImperial": "Imperiálne (ft / mi)",
+  "map_lineOfSight": "Line of Sight",
+  "map_losScreenTitle": "Line of Sight",
+  "losSelectStartEnd": "Vyberte počiatočný a koncový uzol pre LOS.",
+  "losRunFailed": "Kontrola priamej viditeľnosti zlyhala: {error}",
+  "@losRunFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "losClearAllPoints": "Vymazať všetky body",
+  "losRunToViewElevationProfile": "Ak chcete zobraziť výškový profil, spustite LOS",
+  "losMenuTitle": "Menu LOS",
+  "losMenuSubtitle": "Klepnutím na uzly alebo dlhým stlačením mapy získate vlastné body",
+  "losShowDisplayNodes": "Zobraziť uzly zobrazenia",
+  "losCustomPoints": "Vlastné body",
+  "losCustomPointLabel": "Vlastné {index}",
+  "@losCustomPointLabel": {
+    "placeholders": {
+      "index": {
+        "type": "int"
+      }
+    }
+  },
+  "losPointA": "Bod A",
+  "losPointB": "Bod B",
+  "losAntennaA": "Anténa A: {value} {unit}",
+  "@losAntennaA": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losAntennaB": "Anténa B: {value} {unit}",
+  "@losAntennaB": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losRun": "Spustite LOS",
+  "losNoElevationData": "Žiadne údaje o nadmorskej výške",
+  "losProfileClear": "{distance} {distanceUnit}, vymazať LOS, min. vôľa {clearance} {heightUnit}",
+  "@losProfileClear": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "clearance": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losProfileBlocked": "{distance} {distanceUnit}, blokovaný {obstruction} {heightUnit}",
+  "@losProfileBlocked": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "obstruction": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losStatusChecking": "LOS: kontrolujem...",
+  "losStatusNoData": "LOS: žiadne údaje",
+  "losStatusSummary": "LOS: {clear}/{total} vymazané, {blocked} blokované, {unknown} neznáme",
+  "@losStatusSummary": {
+    "placeholders": {
+      "clear": {
+        "type": "int"
+      },
+      "total": {
+        "type": "int"
+      },
+      "blocked": {
+        "type": "int"
+      },
+      "unknown": {
+        "type": "int"
+      }
+    }
+  },
+  "losErrorElevationUnavailable": "Údaje o nadmorskej výške nie sú k dispozícii pre jednu alebo viacero vzoriek.",
+  "losErrorInvalidInput": "Neplatné body/údaje o nadmorskej výške pre výpočet LOS.",
+  "losRenameCustomPoint": "Premenovať vlastný bod",
+  "losPointName": "Názov bodu",
+  "losShowPanelTooltip": "Zobraziť panel LOS",
+  "losHidePanelTooltip": "Skryť panel LOS",
+  "losElevationAttribution": "Údaje o nadmorskej výške: Open-Meteo (CC BY 4.0)",
+  "losLegendRadioHorizon": "Rádiový horizont",
+  "losLegendLosBeam": "Priama viditeľnosť",
+  "losLegendTerrain": "Terén",
+  "losFrequencyLabel": "Frekvencia",
+  "losFrequencyInfoTooltip": "Zobraziť podrobnosti výpočtu",
+  "losFrequencyDialogTitle": "Výpočet rádiového horizontu",
+  "losFrequencyDialogDescription": "Počnúc od k={baselineK} pri {baselineFreq} MHz výpočet upraví k-faktor pre aktuálne pásmo {frequencyMHz} MHz, ktorý definuje zakrivený strop rádiového horizontu.",
+  "@losFrequencyDialogDescription": {
+    "description": "Explain how the calculation uses the baseline frequency and derived k-factor.",
+    "placeholders": {
+      "baselineK": {
+        "type": "double"
+      },
+      "baselineFreq": {
+        "type": "double"
+      },
+      "frequencyMHz": {
+        "type": "double"
+      },
+      "kFactor": {
+        "type": "double"
+      }
+    }
+  },
+  "listFilter_removeFromFavorites": "Odstrániť z označení",
+  "listFilter_addToFavorites": "Pridaj do obľúbených",
+  "listFilter_favorites": "Obľúbené",
+  "@contacts_searchFavorites": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchUsers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRepeaters": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRoomServers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "contacts_searchRoomServers": "Hľadaj {number}{str} serverov miestností...",
+  "contacts_searchFavorites": "Hľadať {number}{str} obľúbené...",
+  "contacts_searchRepeaters": "Hľadať {number}{str} opakovače...",
+  "contacts_searchUsers": "Hľadať {number}{str} používateľov...",
+  "contacts_searchContactsNoNumber": "Hľadať kontakty...",
+  "contacts_unread": "Neprečítané",
+  "settings_contactSettingsSubtitle": "Nastavenia pre pridávanie kontaktov.",
+  "contactsSettings_autoAddUsersTitle": "Automaticky pridávať užívateľov",
+  "contactsSettings_autoAddUsersSubtitle": "Povoliť spoločníkovi automaticky pridávať objavených užívateľov.",
+  "contactsSettings_autoAddRepeatersTitle": "Automaticky pridávať opakovače",
+  "contactsSettings_autoAddRoomServersTitle": "Automaticky pridávať server miestnosti",
+  "contactsSettings_autoAddRoomServersSubtitle": "Povoliť spoločníkovi automaticky pridať objavené serverové miestnosti.",
+  "contactsSettings_autoAddTitle": "Automatické zisťovanie",
+  "contactsSettings_title": "Nastavenia kontaktov",
+  "contactsSettings_otherTitle": "Ďalšie nastavenia súvisiace s kontaktami",
+  "settings_contactSettings": "Nastavenia kontaktov",
+  "contactsSettings_autoAddSensorsTitle": "Automaticky pridávať senzory",
+  "discoveredContacts_noMatching": "Žiadne zhodné kontakty",
+  "discoveredContacts_searchHint": "Vyhľadať objavené kontakty",
+  "contactsSettings_autoAddRepeatersSubtitle": "Povoliť spoločníkovi automaticky pridávať objavené repeater.",
+  "discoveredContacts_contactAdded": "Kontakt bol pridaný",
+  "discoveredContacts_copyContact": "Kopírovať kontakt do schránky",
+  "discoveredContacts_deleteContact": "Zmazať kontakt",
+  "contactsSettings_autoAddSensorsSubtitle": "Povoliť spoločníkovi automaticky pridávať objavené senzory.",
+  "discoveredContacts_Title": "Objavené kontakty",
+  "contactsSettings_overwriteOldestTitle": "Prepísať najstaršie",
+  "discoveredContacts_addContact": "Pridať kontakt",
+  "contactsSettings_overwriteOldestSubtitle": "Keď je zoznam kontaktov plný, bude nahradený najstarší neoznačený kontakt.",
+  "discoveredContacts_deleteContactAll": "Zmazať všetky objavené kontakty",
+  "common_deleteAll": "Zmazať všetko",
+  "discoveredContacts_deleteContactAllContent": "Ste si istí, že chcete zmazať všetky objavené kontakty?",
+  "map_showGuessedLocations": "Zobraziť umiestnenia odhadnutých uzlov",
+  "map_guessedLocation": "Odhadnutá lokalita",
+  "usbScreenTitle": "Pripojte cez USB",
+  "usbScreenSubtitle": "Vyberte detekovaný sériový zariadenie a pripojte ho priamo k vašej MeshCore uzlu.",
+  "connectionChoiceUsbLabel": "USB",
+  "connectionChoiceBluetoothLabel": "Bluetooth",
+  "usbScreenStatus": "Vyberte USB zariadenie",
+  "usbScreenNote": "USB sériová komunikácia je aktívna na podporovaných zariadeniach s Androidom a na desktopových platformách.",
+  "usbScreenEmptyState": "Nenašli sa žiadne USB zariadenia. Pripojte jedno a obnovte.",
+  "usbErrorPermissionDenied": "Žiadosť o prístup cez USB bola zamietnutá.",
+  "usbErrorDeviceMissing": "Vybrané USB zariadenie už nie je dostupné.",
+  "usbErrorInvalidPort": "Vyberte platné USB zariadenie.",
+  "usbErrorBusy": "Ďalšia požiadavka na pripojenie cez USB je aktuálne v procese.",
+  "usbErrorNotConnected": "Nie je pripojené žiadne USB zariadenie.",
+  "usbErrorOpenFailed": "Nepodarilo sa otvoriť vybrané USB zariadenie.",
+  "usbErrorConnectFailed": "Nepodarilo sa sa sa pripojiť k vybranému USB zariadeniu.",
+  "usbErrorUnsupported": "Podpora USB sériového rozhrania nie je na tejto platforme dostupná.",
+  "usbErrorAlreadyActive": "Pripojenie cez USB je už aktivované.",
+  "usbErrorNoDeviceSelected": "Nebolo vybrané žiadne USB zariadenie.",
+  "usbErrorPortClosed": "Pripojenie cez USB nie je aktivované.",
+  "usbFallbackDeviceName": "Webový sériový zariadenie",
+  "@usbConnectionFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "usbStatus_searching": "Hľadanie USB zariadení...",
+  "usbConnectionFailed": "Neúspešné pripojenie cez USB: {error}",
+  "usbStatus_notConnected": "Vyberte USB zariadenie",
+  "usbStatus_connecting": "Pripojenie k USB zariadeniu...",
+  "usbErrorConnectTimedOut": "Pripojenie nebolo úspešné. Uistite sa, že zariadenie má nainštalovaný firmware USB Companion."
 }

lib/l10n/app_sl.arb

@@ -1,4 +1,12 @@
 {
+  "channels_channelDeleteFailed": "Kanala {name} ni bilo mogoče izbrisati",
+  "@channels_channelDeleteFailed": {
+    "placeholders": {
+      "name": {
+        "type": "String"
+      }
+    }
+  },
   "@@locale": "sl",
   "appTitle": "MeshCore Open",
   "nav_contacts": "Stiki",
@@ -334,6 +342,8 @@
   "channels_publicChannel": "Javni kanal",
   "channels_privateChannel": "Zasebni kanal",
   "channels_editChannel": "Uredi kanal",
+  "channels_muteChannel": "Utišaj kanal",
+  "channels_unmuteChannel": "Vklopi obvestila kanala",
   "channels_deleteChannel": "Pošlji kanal",
   "channels_deleteChannelConfirm": "Izbrišem \"{name}\"? To se ne da povrniti.",
   "@channels_deleteChannelConfirm": {
@@ -1351,12 +1361,12 @@
       }
     }
   },
-  "repeater_neighboursSubtitle": "Pogledati nič sosednjih hopjev.",
+  "repeater_neighborsSubtitle": "Pogledati nič sosednjih hopjev.",
-  "repeater_neighbours": "Sosedi",
+  "repeater_neighbors": "Sosedi",
   "neighbors_receivedData": "Prejeto podatke o sosedih",
   "neighbors_requestTimedOut": "Sosedi zahtevajo izklop po dogovoru.",
   "neighbors_errorLoading": "Napaka pri obnašanju sosedov: {error}",
-  "neighbors_repeatersNeighbours": "Ponovitve Sosedi",
+  "neighbors_repeatersNeighbors": "Ponovitve Sosedi",
   "neighbors_noData": "Niso na voljo podatki o sosedih.",
   "channels_joinPrivateChannel": "Pridružite se zasebni skupini",
   "channels_createPrivateChannelDesc": "Varno zaklenjeno s skrivnim ključem.",
@@ -1550,6 +1560,8 @@
   "contacts_pathTraceTo": "Trace route to {name}",
   "appSettings_languageRu": "Ruščina",
   "appSettings_languageUk": "Ukrajinsko",
+  "appSettings_enableMessageTracing": "Omogoči sledenje sporočilom",
+  "appSettings_enableMessageTracingSubtitle": "Prikaži podrobne metapodatke o usmerjanju in časovnem usklajevanju sporočil",
   "contacts_contactImported": "Kontakt je bil uvožen.",
   "contacts_contactImportFailed": "Kontakt ni bil uspešno uvožen.",
   "contacts_zeroHopAdvert": "Reklama brez posrednikov",
@@ -1593,8 +1605,259 @@
   "map_pathTraceCancelled": "Spremljanje poti je prekinjeno.",
   "scanner_enableBluetooth": "Omogočite Bluetooth",
   "scanner_bluetoothOffMessage": "Prosimo, vklopite Bluetooth, da lahko poiščete naprave.",
+  "scanner_chromeRequired": "Zahtevan brskalnik Chrome",
+  "scanner_chromeRequiredMessage": "Ta spletna aplikacija za podporo Bluetooth zahteva Google Chrome ali brskalnik na osnovi Chromiuma.",
   "scanner_bluetoothOff": "Bluetooth je izklopljen",
+  "snrIndicator_lastSeen": "Zadnjič videno",
+  "snrIndicator_nearByRepeaters": "Bližnji ponovitelji",
+  "chat_ShowAllPaths": "Prikaži vse poti",
   "settings_clientRepeatFreqWarning": "Za ponovni prenos na brezžični način so potrebne frekvence 433, 869 ali 918 MHz.",
   "settings_clientRepeatSubtitle": "Omogočite temu naprave, da ponavlja paketne sporočila za druge.",
-  "settings_clientRepeat": "Neovadno ponavljanje"
+  "settings_clientRepeat": "Neovadno ponavljanje",
+  "settings_aboutOpenMeteoAttribution": "Podatki o višini LOS: Open-Meteo (CC BY 4.0)",
+  "appSettings_unitsTitle": "Enote",
+  "appSettings_unitsMetric": "Metrična (m/km)",
+  "appSettings_unitsImperial": "Imperialno (ft / mi)",
+  "map_lineOfSight": "Linija vida",
+  "map_losScreenTitle": "Linija vida",
+  "losSelectStartEnd": "Izberite začetno in končno vozlišče za LOS.",
+  "losRunFailed": "Preverjanje vidnega polja ni uspelo: {error}",
+  "@losRunFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "losClearAllPoints": "Počisti vse točke",
+  "losRunToViewElevationProfile": "Zaženite LOS za ogled višinskega profila",
+  "losMenuTitle": "LOS meni",
+  "losMenuSubtitle": "Tapnite vozlišča ali dolgo pritisnite na zemljevid za točke po meri",
+  "losShowDisplayNodes": "Pokaži prikazna vozlišča",
+  "losCustomPoints": "Točke po meri",
+  "losCustomPointLabel": "Po meri {index}",
+  "@losCustomPointLabel": {
+    "placeholders": {
+      "index": {
+        "type": "int"
+      }
+    }
+  },
+  "losPointA": "Točka A",
+  "losPointB": "Točka B",
+  "losAntennaA": "Antena A: {value} {unit}",
+  "@losAntennaA": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losAntennaB": "Antena B: {value} {unit}",
+  "@losAntennaB": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losRun": "Zaženi LOS",
+  "losNoElevationData": "Ni podatkov o višini",
+  "losProfileClear": "{distance} {distanceUnit}, čisti LOS, najmanjša razdalja {clearance} {heightUnit}",
+  "@losProfileClear": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "clearance": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losProfileBlocked": "{distance} {distanceUnit}, blokiral {obstruction} {heightUnit}",
+  "@losProfileBlocked": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "obstruction": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losStatusChecking": "LOS: preverjam ...",
+  "losStatusNoData": "LOS: ni podatkov",
+  "losStatusSummary": "LOS: {clear}/{total} jasno, {blocked} blokirano, {unknown} neznano",
+  "@losStatusSummary": {
+    "placeholders": {
+      "clear": {
+        "type": "int"
+      },
+      "total": {
+        "type": "int"
+      },
+      "blocked": {
+        "type": "int"
+      },
+      "unknown": {
+        "type": "int"
+      }
+    }
+  },
+  "losErrorElevationUnavailable": "Podatki o nadmorski višini niso na voljo za enega ali več vzorcev.",
+  "losErrorInvalidInput": "Neveljavni podatki o točkah/višini za izračun LOS.",
+  "losRenameCustomPoint": "Preimenujte točko po meri",
+  "losPointName": "Ime točke",
+  "losShowPanelTooltip": "Pokaži ploščo LOS",
+  "losHidePanelTooltip": "Skrij ploščo LOS",
+  "losElevationAttribution": "Podatki o višini: Open-Meteo (CC BY 4.0)",
+  "losLegendRadioHorizon": "Radijski horizont",
+  "losLegendLosBeam": "Linija vidnosti",
+  "losLegendTerrain": "Teren",
+  "losFrequencyLabel": "Frekvenca",
+  "losFrequencyInfoTooltip": "Prikaži podrobnosti izračuna",
+  "losFrequencyDialogTitle": "Izračun radijskega horizonta",
+  "losFrequencyDialogDescription": "Začenši od k={baselineK} pri {baselineFreq} MHz, izračun prilagodi k-faktor za trenutni pas {frequencyMHz} MHz, ki določa ukrivljeno zgornjo mejo radijskega horizonta.",
+  "@losFrequencyDialogDescription": {
+    "description": "Explain how the calculation uses the baseline frequency and derived k-factor.",
+    "placeholders": {
+      "baselineK": {
+        "type": "double"
+      },
+      "baselineFreq": {
+        "type": "double"
+      },
+      "frequencyMHz": {
+        "type": "double"
+      },
+      "kFactor": {
+        "type": "double"
+      }
+    }
+  },
+  "listFilter_favorites": "Priljubljene",
+  "listFilter_removeFromFavorites": "Odstrani iz priljubljenih",
+  "listFilter_addToFavorites": "Dodaj v priljubljene",
+  "@contacts_searchFavorites": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchUsers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRepeaters": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRoomServers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "contacts_unread": "Neprebrano",
+  "contacts_searchFavorites": "Iskanje {number}{str} priljubljenih...",
+  "contacts_searchRoomServers": "Išči {number}{str} strežnikov sob...",
+  "contacts_searchContactsNoNumber": "Iskanje stikov...",
+  "contacts_searchRepeaters": "Išči {number}{str} ponavljalnike...",
+  "contacts_searchUsers": "Išči {number}{str} uporabnikov...",
+  "settings_contactSettings": "Nastavitve stika",
+  "contactsSettings_autoAddTitle": "Avtomatsko odkrivanje",
+  "contactsSettings_autoAddUsersTitle": "Avtomatsko dodaj uporabnike",
+  "contactsSettings_autoAddRepeatersTitle": "Avtomatsko dodaj ponovitelje",
+  "contactsSettings_autoAddRepeatersSubtitle": "Dovoli spremljevalcu, da samodejno doda odkrite ponovitelje.",
+  "contactsSettings_autoAddRoomServersTitle": "Avtomatsko dodaj strežnike sob",
+  "contactsSettings_autoAddRoomServersSubtitle": "Dovoli spremljevalcu, da samodejno doda odkrite strežnike sob.",
+  "contactsSettings_otherTitle": "Druge nastavitve v zvezi s stiki",
+  "settings_contactSettingsSubtitle": "Nastavitve za dodajanje stikov.",
+  "contactsSettings_title": "Nastavitve stikov",
+  "contactsSettings_autoAddSensorsTitle": "Avtomatsko dodaj senzorje",
+  "contactsSettings_autoAddUsersSubtitle": "Dovoli spremljevalcu, da samodejno doda odkrite uporabnike.",
+  "discoveredContacts_noMatching": "Ni ujemajočih stikov",
+  "contactsSettings_autoAddSensorsSubtitle": "Dovoli spremljevalcu, da samodejno doda odkrite senzorje.",
+  "discoveredContacts_addContact": "Dodaj stik",
+  "discoveredContacts_contactAdded": "Kontakt dodan",
+  "discoveredContacts_copyContact": "Kopiraj stik v odložišče",
+  "contactsSettings_overwriteOldestTitle": "Prepiši najstarejše",
+  "discoveredContacts_Title": "Odkriti stiki",
+  "discoveredContacts_searchHint": "Najdeni stiki po iskanju",
+  "discoveredContacts_deleteContact": "Izbriši stik",
+  "contactsSettings_overwriteOldestSubtitle": "Ko je seznam stikov poln, bo najstarejši nestarševski stik zamenjan.",
+  "common_deleteAll": "Izbriši vse",
+  "discoveredContacts_deleteContactAllContent": "Ste prepričani, da želite izbrisati vse odkrite kontakte?",
+  "discoveredContacts_deleteContactAll": "Izbriši vse odkrite kontakte",
+  "map_guessedLocation": "Predpostavljena lokacija",
+  "map_showGuessedLocations": "Pokaži lokacije domnevnih not.",
+  "usbScreenTitle": "Povežite preko USB",
+  "usbScreenSubtitle": "Izberite zaznano serijsko napravo in se neposredno povežite z vašo MeshCore napravo.",
+  "connectionChoiceBluetoothLabel": "Bluetooth",
+  "connectionChoiceUsbLabel": "USB",
+  "usbScreenStatus": "Izberite USB naprave",
+  "usbScreenNote": "USB serijska povezava je aktivna na podprtih napravah Android in na desktop platformah.",
+  "usbScreenEmptyState": "Niti en USB naprave niso najdeni. Povežite eno in posodobite.",
+  "usbErrorPermissionDenied": "Dovoljenje za dostop preko USB-ja je bilo zavrnjeno.",
+  "usbErrorDeviceMissing": "Izbrani USB napravej je več ne.",
+  "usbErrorInvalidPort": "Izberite veljavno USB naprave.",
+  "usbErrorBusy": "Že je v teku zahteva za povezavo preko USB.",
+  "usbErrorNotConnected": "Ni priklopljenih USB naprave.",
+  "usbErrorOpenFailed": "Uspešno ni bilo mogo, da se odpre izbran naprave USB.",
+  "usbErrorConnectFailed": "Niso bilo mogoče uskladiti povezave z izbranim USB napom.",
+  "usbErrorUnsupported": "USB serijska komunikacija ni podprta na tej platformi.",
+  "usbErrorAlreadyActive": "USB povezava je že aktivirana.",
+  "usbErrorNoDeviceSelected": "Ni bilo izbranega USB naprave.",
+  "usbErrorPortClosed": "USB povezava ni aktivirana.",
+  "usbFallbackDeviceName": "Naprave za serijsko komunikacijo preko spleta",
+  "@usbConnectionFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "usbStatus_notConnected": "Izberite USB naprave.",
+  "usbStatus_connecting": "Povezava z USB napravo...",
+  "usbStatus_searching": "Iskanje USB naprav...",
+  "usbConnectionFailed": "Napaka pri povezavi preko USB: {error}",
+  "usbErrorConnectTimedOut": "Vzpostavitve ni bilo mogo. Prosimo, da se prepričate, da ima naprave trenutno nameštan firmware USB Companion."
 }

lib/l10n/app_sv.arb

@@ -1,4 +1,12 @@
 {
+  "channels_channelDeleteFailed": "Det gick inte att ta bort kanalen \"{name}\"",
+  "@channels_channelDeleteFailed": {
+    "placeholders": {
+      "name": {
+        "type": "String"
+      }
+    }
+  },
   "@@locale": "sv",
   "appTitle": "MeshCore Open",
   "nav_contacts": "Kontakter",
@@ -334,6 +342,8 @@
   "channels_publicChannel": "Allmänt kanal",
   "channels_privateChannel": "Privat kanal",
   "channels_editChannel": "Redigera kanal",
+  "channels_muteChannel": "Tysta kanal",
+  "channels_unmuteChannel": "Slå på ljud för kanal",
   "channels_deleteChannel": "Ta bort kanal",
   "channels_deleteChannelConfirm": "Radera \"{name}\"? Detta kan inte ångras.",
   "@channels_deleteChannelConfirm": {
@@ -1351,12 +1361,12 @@
       }
     }
   },
-  "repeater_neighbours": "Grannar",
+  "repeater_neighbors": "Grannar",
-  "repeater_neighboursSubtitle": "Visa noll hoppgrannar.",
+  "repeater_neighborsSubtitle": "Visa noll hoppgrannar.",
   "neighbors_receivedData": "Mottagna grannars data",
   "neighbors_requestTimedOut": "Grannar begär tidsinställd utskick.",
   "neighbors_errorLoading": "Fel vid inläsning av grannar: {error}",
-  "neighbors_repeatersNeighbours": "Upprepar grannar",
+  "neighbors_repeatersNeighbors": "Upprepar grannar",
   "neighbors_noData": "Inga grannuppgifter finns tillgängliga.",
   "channels_createPrivateChannel": "Skapa en privat kanal",
   "channels_joinPrivateChannel": "Gå med i en Privat Kanal",
@@ -1556,6 +1566,8 @@
   "contacts_copyAdvertToClipboard": "Kopiera annons till urklipp",
   "contacts_invalidAdvertFormat": "Ogiltiga kontaktuppgifter",
   "appSettings_languageUk": "Ukrainska",
+  "appSettings_enableMessageTracing": "Aktivera meddelandespårning",
+  "appSettings_enableMessageTracingSubtitle": "Visa detaljerade metadata om dirigering och tidsinställningar för meddelanden",
   "contacts_addContactFromClipboard": "Lägg till kontakt från urklipp",
   "contacts_contactImported": "Kontakt har importerats.",
   "contacts_zeroHopContactAdvertSent": "Skickat kontakt via annons.",
@@ -1593,8 +1605,259 @@
   "map_removeLast": "Ta bort sista",
   "scanner_enableBluetooth": "Aktivera Bluetooth",
   "scanner_bluetoothOffMessage": "Vänligen aktivera Bluetooth för att söka efter enheter.",
+  "scanner_chromeRequired": "Chrome-webbläsare krävs",
+  "scanner_chromeRequiredMessage": "Denna webbapplikation kräver Google Chrome oder en Chromium-baserader webbläsare för Bluetooth-stöd.",
   "scanner_bluetoothOff": "Bluetooth är avstängt",
+  "snrIndicator_lastSeen": "Senast sedd",
+  "snrIndicator_nearByRepeaters": "Närliggande uppreparstationer",
+  "chat_ShowAllPaths": "Visa alla vägar",
   "settings_clientRepeatSubtitle": "Låt enheten repetera nätpaket för andra användare.",
   "settings_clientRepeat": "Upprepa utan elnät",
-  "settings_clientRepeatFreqWarning": "För att kunna kommunicera utanför elnätet krävs frekvenserna 433, 869 eller 918 MHz."
+  "settings_clientRepeatFreqWarning": "För att kunna kommunicera utanför elnätet krävs frekvenserna 433, 869 eller 918 MHz.",
+  "settings_aboutOpenMeteoAttribution": "LOS-höjddata: Open-Meteo (CC BY 4.0)",
+  "appSettings_unitsTitle": "Enheter",
+  "appSettings_unitsMetric": "Metriskt (m/km)",
+  "appSettings_unitsImperial": "Imperialt (ft / mi)",
+  "map_lineOfSight": "Synlinje",
+  "map_losScreenTitle": "Synlinje",
+  "losSelectStartEnd": "Välj start- och slutnoder för LOS.",
+  "losRunFailed": "Synlinjekontroll misslyckades: {error}",
+  "@losRunFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "losClearAllPoints": "Rensa alla punkter",
+  "losRunToViewElevationProfile": "Kör LOS för att se höjdprofil",
+  "losMenuTitle": "LOS-menyn",
+  "losMenuSubtitle": "Tryck på noder eller tryck länge på kartan för anpassade punkter",
+  "losShowDisplayNodes": "Visa displaynoder",
+  "losCustomPoints": "Anpassade poäng",
+  "losCustomPointLabel": "Anpassad {index}",
+  "@losCustomPointLabel": {
+    "placeholders": {
+      "index": {
+        "type": "int"
+      }
+    }
+  },
+  "losPointA": "Punkt A",
+  "losPointB": "Punkt B",
+  "losAntennaA": "Antenn A: {value} {unit}",
+  "@losAntennaA": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losAntennaB": "Antenn B: {value} {unit}",
+  "@losAntennaB": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losRun": "Kör LOS",
+  "losNoElevationData": "Inga höjddata",
+  "losProfileClear": "{distance} {distanceUnit}, rensa LOS, min clearance {clearance} {heightUnit}",
+  "@losProfileClear": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "clearance": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losProfileBlocked": "{distance} {distanceUnit}, blockerad av {obstruction} {heightUnit}",
+  "@losProfileBlocked": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "obstruction": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losStatusChecking": "LOS: kollar...",
+  "losStatusNoData": "LOS: inga data",
+  "losStatusSummary": "LOS: {clear}/{total} rensa, {blocked} blockerad, {unknown} okänd",
+  "@losStatusSummary": {
+    "placeholders": {
+      "clear": {
+        "type": "int"
+      },
+      "total": {
+        "type": "int"
+      },
+      "blocked": {
+        "type": "int"
+      },
+      "unknown": {
+        "type": "int"
+      }
+    }
+  },
+  "losErrorElevationUnavailable": "Höjddata är inte tillgänglig för ett eller flera prover.",
+  "losErrorInvalidInput": "Ogiltiga poäng/höjddata för LOS-beräkning.",
+  "losRenameCustomPoint": "Byt namn på anpassad punkt",
+  "losPointName": "Punktnamn",
+  "losShowPanelTooltip": "Visa LOS-panelen",
+  "losHidePanelTooltip": "Dölj LOS-panelen",
+  "losElevationAttribution": "Höjddata: Open-Meteo (CC BY 4.0)",
+  "losLegendRadioHorizon": "Radiohorisont",
+  "losLegendLosBeam": "Siktlinje",
+  "losLegendTerrain": "Terräng",
+  "losFrequencyLabel": "Frekvens",
+  "losFrequencyInfoTooltip": "Visa detaljer om beräkningen",
+  "losFrequencyDialogTitle": "Beräkning av radiohorisonten",
+  "losFrequencyDialogDescription": "Med start från k={baselineK} vid {baselineFreq} MHz, justerar beräkningen k-faktorn för det aktuella {frequencyMHz} MHz-bandet, som definierar den böjda radiohorisonten.",
+  "@losFrequencyDialogDescription": {
+    "description": "Explain how the calculation uses the baseline frequency and derived k-factor.",
+    "placeholders": {
+      "baselineK": {
+        "type": "double"
+      },
+      "baselineFreq": {
+        "type": "double"
+      },
+      "frequencyMHz": {
+        "type": "double"
+      },
+      "kFactor": {
+        "type": "double"
+      }
+    }
+  },
+  "listFilter_removeFromFavorites": "Ta bort från favoriter",
+  "listFilter_addToFavorites": "Lägg till i favoriter",
+  "listFilter_favorites": "Favoriter",
+  "@contacts_searchFavorites": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchUsers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRepeaters": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRoomServers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "contacts_unread": "Oläst",
+  "contacts_searchContactsNoNumber": "Sök kontakter...",
+  "contacts_searchRepeaters": "Sök {number}{str} upprepningsenheter...",
+  "contacts_searchFavorites": "Sök {number}{str} Favoriter...",
+  "contacts_searchUsers": "Sök {number}{str} användare...",
+  "contacts_searchRoomServers": "Sök {number}{str} Room-servrar...",
+  "settings_contactSettingsSubtitle": "Inställningar för hur kontakter läggs till.",
+  "settings_contactSettings": "Kontaktinställningar",
+  "contactsSettings_autoAddTitle": "Automatisk upptäckt",
+  "contactsSettings_otherTitle": "Andra inställningar relaterade till kontakt",
+  "contactsSettings_autoAddUsersSubtitle": "Tillåt kompanjonen att automatiskt lägga till upptäckta användare",
+  "contactsSettings_autoAddRepeatersTitle": "Lägg till upprepande enheter automatiskt",
+  "contactsSettings_autoAddRoomServersSubtitle": "Tillåt kompanjonen att automatiskt lägga till upptäckta rumsservrar.",
+  "contactsSettings_autoAddSensorsTitle": "Lägg till sensorer automatiskt",
+  "contactsSettings_autoAddUsersTitle": "Lägg till användare automatiskt",
+  "contactsSettings_title": "Kontaktinställningar",
+  "contactsSettings_autoAddSensorsSubtitle": "Tillåt kompanjonen att automatiskt lägga till upptäckta sensorer.",
+  "contactsSettings_overwriteOldestTitle": "Skriv över äldst",
+  "contactsSettings_autoAddRepeatersSubtitle": "Tillåt kompanjonen att automatiskt lägga till upptäckta repeater.",
+  "contactsSettings_autoAddRoomServersTitle": "Lägg automatiskt till rumsservrar",
+  "discoveredContacts_noMatching": "Inga matchande kontakter",
+  "discoveredContacts_searchHint": "Sök uppfunna kontakter",
+  "discoveredContacts_deleteContact": "Ta bort kontakt",
+  "discoveredContacts_Title": "Upptäckta kontakter",
+  "discoveredContacts_contactAdded": "Kontakt tillagd",
+  "discoveredContacts_addContact": "Lägg till kontakt",
+  "discoveredContacts_copyContact": "Kopiera kontakt till urklipp",
+  "contactsSettings_overwriteOldestSubtitle": "När kontaktlistan är full ersätts den äldsta icke-favoriterade kontakten.",
+  "common_deleteAll": "Ta bort alla",
+  "discoveredContacts_deleteContactAllContent": "Är du säker på att du vill ta bort alla upptäckta kontakter?",
+  "discoveredContacts_deleteContactAll": "Ta bort alla upptäckta kontakter",
+  "map_guessedLocation": "Gissad plats",
+  "map_showGuessedLocations": "Visa upp de antagna nodernas placeringar",
+  "connectionChoiceBluetoothLabel": "Bluetooth",
+  "connectionChoiceUsbLabel": "USB",
+  "usbScreenSubtitle": "Välj en detekterad seriell enhet och anslut direkt till din MeshCore-nod.",
+  "usbScreenTitle": "Anslut via USB",
+  "usbScreenStatus": "Välj en USB-enhet",
+  "usbScreenNote": "USB-seriell kommunikation är aktiv på stödda Android-enheter och på skrivbordsplattformar.",
+  "usbScreenEmptyState": "Inga USB-enheter hittades. Anslut en och uppdatera.",
+  "usbErrorPermissionDenied": "Tillgången via USB nekas.",
+  "usbErrorDeviceMissing": "Den valda USB-enheten är inte längre tillgänglig.",
+  "usbErrorInvalidPort": "Välj en giltig USB-enhet.",
+  "usbErrorBusy": "En annan förfrågan om USB-anslutning är redan pågående.",
+  "usbErrorNotConnected": "Ingen USB-enhet är ansluten.",
+  "usbErrorOpenFailed": "Misslyckades med att öppna det valda USB-enheten.",
+  "usbErrorConnectFailed": "Kunde inte ansluta till det valda USB-enheten.",
+  "usbErrorUnsupported": "USB-seriell kommunikation stöds inte på denna plattform.",
+  "usbErrorAlreadyActive": "En USB-anslutning är redan aktiv.",
+  "usbErrorNoDeviceSelected": "Ingen USB-enhet valdes.",
+  "usbErrorPortClosed": "USB-anslutningen är inte aktiv.",
+  "usbFallbackDeviceName": "Web-serieenhet",
+  "@usbConnectionFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "usbStatus_connecting": "Anslutning till USB-enhet...",
+  "usbStatus_notConnected": "Välj en USB-enhet",
+  "usbConnectionFailed": "Fel vid USB-anslutning: {error}",
+  "usbStatus_searching": "Söker efter USB-enheter...",
+  "usbErrorConnectTimedOut": "Anslutningen har tidsutgått. Se till att enheten har rätt USB-firmware."
 }

lib/l10n/app_uk.arb

@@ -1,4 +1,12 @@
 {
+  "channels_channelDeleteFailed": "Не вдалося видалити канал \"{name}\"",
+  "@channels_channelDeleteFailed": {
+    "placeholders": {
+      "name": {
+        "type": "String"
+      }
+    }
+  },
   "@@locale": "uk",
   "appTitle": "MeshCore Open",
   "nav_contacts": "Контакти",
@@ -335,6 +343,8 @@
   "channels_publicChannel": "Публічний канал",
   "channels_privateChannel": "Приватний канал",
   "channels_editChannel": "Редагувати канал",
+  "channels_muteChannel": "Вимкнути сповіщення каналу",
+  "channels_unmuteChannel": "Увімкнути сповіщення каналу",
   "channels_deleteChannel": "Видалити канал",
   "channels_deleteChannelConfirm": "Видалити {name}? Це не можна скасувати.",
   "@channels_deleteChannelConfirm": {
@@ -1352,12 +1362,12 @@
       }
     }
   },
-  "repeater_neighbours": "Сусіди",
+  "repeater_neighbors": "Сусіди",
-  "repeater_neighboursSubtitle": "Показати сусідів нульового стрибка.",
+  "repeater_neighborsSubtitle": "Показати сусідів нульового стрибка.",
   "neighbors_receivedData": "Дані сусідів отримано",
   "neighbors_requestTimedOut": "Час запиту сусідів вичерпано.",
   "neighbors_errorLoading": "Помилка завантаження сусідів: {error}",
-  "neighbors_repeatersNeighbours": "Ретранслятори-сусіди",
+  "neighbors_repeatersNeighbors": "Ретранслятори-сусіди",
   "neighbors_noData": "Дані про сусідів недоступні.",
   "channels_createPrivateChannelDesc": "Захищено секретним ключем.",
   "channels_joinPrivateChannel": "Приєднатися до приватного каналу",
@@ -1557,6 +1567,8 @@
   "contacts_copyAdvertToClipboard": "Копіювати оголошення в буфер обміну",
   "contacts_clipboardEmpty": "Буфер обміну порожній",
   "appSettings_languageRu": "Російська",
+  "appSettings_enableMessageTracing": "Увімкнути відстеження повідомлень",
+  "appSettings_enableMessageTracingSubtitle": "Показувати детальні метадані про маршрутизацію та час для повідомлень",
   "contacts_ShareContact": "Копіювати контакт у буфер обміну",
   "contacts_zeroHopContactAdvertFailed": "Не вдалося надіслати контакт.",
   "contacts_contactAdvertCopied": "Рекламу скопійовано до буфера обміну.",
@@ -1593,8 +1605,259 @@
   "map_pathTraceCancelled": "Відмінується трасування шляху",
   "scanner_enableBluetooth": "Увімкніть Bluetooth",
   "scanner_bluetoothOffMessage": "Будь ласка, увімкніть Bluetooth, щоб сканувати пристрої.",
+  "scanner_chromeRequired": "Потрібен браузер Chrome",
+  "scanner_chromeRequiredMessage": "Для підтримки Bluetooth у цьому веб-додатку потрібен Google Chrome або браузер на базі Chromium.",
   "scanner_bluetoothOff": "Bluetooth вимкнено",
+  "snrIndicator_lastSeen": "Останній раз бачили",
+  "snrIndicator_nearByRepeaters": "Ближні ретранслятори",
+  "chat_ShowAllPaths": "Показати всі шляхи",
   "settings_clientRepeatFreqWarning": "Повтор без підключення до мережі вимагає частоти 433, 869 або 918 МГц.",
   "settings_clientRepeatSubtitle": "Дозвольте цьому пристрою повторювати пакети даних для інших пристроїв.",
-  "settings_clientRepeat": "Автономна система"
+  "settings_clientRepeat": "Автономна система",
+  "settings_aboutOpenMeteoAttribution": "Дані про висоту LOS: Open-Meteo (CC BY 4.0)",
+  "appSettings_unitsTitle": "одиниці",
+  "appSettings_unitsMetric": "Метричний (м / км)",
+  "appSettings_unitsImperial": "Імперська (ft / mi)",
+  "map_lineOfSight": "Пряма видимість",
+  "map_losScreenTitle": "Пряма видимість",
+  "losSelectStartEnd": "Виберіть початковий і кінцевий вузли для LOS.",
+  "losRunFailed": "Помилка перевірки прямої видимості: {error}",
+  "@losRunFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "losClearAllPoints": "Очистити всі пункти",
+  "losRunToViewElevationProfile": "Запустіть LOS, щоб переглянути профіль висоти",
+  "losMenuTitle": "Меню LOS",
+  "losMenuSubtitle": "Торкніться вузлів або утримуйте карту, щоб отримати власні точки",
+  "losShowDisplayNodes": "Показати вузли відображення",
+  "losCustomPoints": "Користувальницькі точки",
+  "losCustomPointLabel": "Спеціальний {index}",
+  "@losCustomPointLabel": {
+    "placeholders": {
+      "index": {
+        "type": "int"
+      }
+    }
+  },
+  "losPointA": "Точка А",
+  "losPointB": "Точка Б",
+  "losAntennaA": "Антена A: {value} {unit}",
+  "@losAntennaA": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losAntennaB": "Антена B: {value} {unit}",
+  "@losAntennaB": {
+    "placeholders": {
+      "value": {
+        "type": "String"
+      },
+      "unit": {
+        "type": "String"
+      }
+    }
+  },
+  "losRun": "Запустіть LOS",
+  "losNoElevationData": "Немає даних про висоту",
+  "losProfileClear": "{distance} {distanceUnit}, чистий LOS, мінімальний зазор {clearance} {heightUnit}",
+  "@losProfileClear": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "clearance": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losProfileBlocked": "{distance} {distanceUnit}, заблоковано {obstruction} {heightUnit}",
+  "@losProfileBlocked": {
+    "placeholders": {
+      "distance": {
+        "type": "String"
+      },
+      "distanceUnit": {
+        "type": "String"
+      },
+      "obstruction": {
+        "type": "String"
+      },
+      "heightUnit": {
+        "type": "String"
+      }
+    }
+  },
+  "losStatusChecking": "LOS: перевірка...",
+  "losStatusNoData": "LOS: немає даних",
+  "losStatusSummary": "LOS: {clear}/{total} очищено, {blocked} заблоковано, {unknown} невідомо",
+  "@losStatusSummary": {
+    "placeholders": {
+      "clear": {
+        "type": "int"
+      },
+      "total": {
+        "type": "int"
+      },
+      "blocked": {
+        "type": "int"
+      },
+      "unknown": {
+        "type": "int"
+      }
+    }
+  },
+  "losErrorElevationUnavailable": "Дані про висоту недоступні для одного чи кількох зразків.",
+  "losErrorInvalidInput": "Недійсні дані про точки/висоту для розрахунку LOS.",
+  "losRenameCustomPoint": "Перейменуйте спеціальну точку",
+  "losPointName": "Назва точки",
+  "losShowPanelTooltip": "Показати панель LOS",
+  "losHidePanelTooltip": "Приховати панель LOS",
+  "losElevationAttribution": "Дані про висоту: Open-Meteo (CC BY 4.0)",
+  "losLegendRadioHorizon": "Радіогоризонт",
+  "losLegendLosBeam": "Лінія прямої видимості",
+  "losLegendTerrain": "Рельєф",
+  "losFrequencyLabel": "Частота",
+  "losFrequencyInfoTooltip": "Переглянути деталі розрахунку",
+  "losFrequencyDialogTitle": "Розрахунок радіогоризонту",
+  "losFrequencyDialogDescription": "Починаючи з k={baselineK} на {baselineFreq} МГц, обчислення коригує k-фактор для поточного діапазону {frequencyMHz} МГц, який визначає викривлену межу радіогоризонту.",
+  "@losFrequencyDialogDescription": {
+    "description": "Explain how the calculation uses the baseline frequency and derived k-factor.",
+    "placeholders": {
+      "baselineK": {
+        "type": "double"
+      },
+      "baselineFreq": {
+        "type": "double"
+      },
+      "frequencyMHz": {
+        "type": "double"
+      },
+      "kFactor": {
+        "type": "double"
+      }
+    }
+  },
+  "listFilter_removeFromFavorites": "Видалити зі списку улюблених",
+  "listFilter_addToFavorites": "Додати до улюблених",
+  "listFilter_favorites": "Улюблені",
+  "@contacts_searchFavorites": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchUsers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRepeaters": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "@contacts_searchRoomServers": {
+    "placeholders": {
+      "number": {
+        "type": "int"
+      },
+      "str": {
+        "type": "String"
+      }
+    }
+  },
+  "contacts_searchRoomServers": "Пошук {number}{str} серверів кімнат...",
+  "contacts_searchUsers": "Пошук {number}{str} користувачів...",
+  "contacts_searchFavorites": "Пошук {number}{str} улюблених...",
+  "contacts_searchContactsNoNumber": "Пошук контактів...",
+  "contacts_searchRepeaters": "Пошук {number}{str} ретрансляторів...",
+  "contacts_unread": "Непрочитане",
+  "settings_contactSettingsSubtitle": "Налаштування для додавання контактів",
+  "settings_contactSettings": "Налаштування контактів",
+  "contactsSettings_autoAddUsersSubtitle": "Дозволити супутникові автоматично додавати виявлених користувачів",
+  "contactsSettings_autoAddRepeatersTitle": "Автоматично додавати повторювачі",
+  "contactsSettings_autoAddRepeatersSubtitle": "Дозволити супутнику автоматично додавати виявлені ретранслятори",
+  "contactsSettings_autoAddRoomServersTitle": "Автоматично додавати сервери кімнат",
+  "contactsSettings_otherTitle": "Інші налаштування, пов'язані з контактами",
+  "contactsSettings_autoAddTitle": "Автоматичне виявлення",
+  "contactsSettings_autoAddUsersTitle": "Автоматично додавати користувачів",
+  "contactsSettings_title": "Налаштування контактів",
+  "contactsSettings_autoAddRoomServersSubtitle": "Дозволити супровіднику автоматично додавати виявлені сервери кімнат.",
+  "contactsSettings_autoAddSensorsTitle": "Автоматично додавати датчики",
+  "discoveredContacts_searchHint": "Знайти виявлені контакти",
+  "discoveredContacts_contactAdded": "Контакт додано",
+  "contactsSettings_autoAddSensorsSubtitle": "Дозволити супровіднику автоматично додавати виявлені сенсори",
+  "contactsSettings_overwriteOldestTitle": "Перезаписати найстаріше",
+  "discoveredContacts_Title": "Виявлені контакти",
+  "discoveredContacts_noMatching": "Відповідних контактів не знайдено",
+  "discoveredContacts_deleteContact": "Видалити контакт",
+  "discoveredContacts_copyContact": "Копіювати контакт у буфер обміну",
+  "discoveredContacts_addContact": "Додати контакт",
+  "contactsSettings_overwriteOldestSubtitle": "Коли список контактів заповнений, найстарший контакт без позначки улюбленого буде замінений.",
+  "common_deleteAll": "Видалити все",
+  "discoveredContacts_deleteContactAll": "Видалити всі виявлені контакти",
+  "discoveredContacts_deleteContactAllContent": "Ви впевнені, що хочете видалити всі виявлені контакти?",
+  "map_showGuessedLocations": "Показати місцезнаходження передбачених вузлів",
+  "map_guessedLocation": "Визначено місцезнаходження",
+  "usbScreenSubtitle": "Виберіть виявлене серійне пристрій і підключіть його безпосередньо до вашого вузла MeshCore.",
+  "usbScreenTitle": "Підключити через USB",
+  "connectionChoiceBluetoothLabel": "Bluetooth",
+  "connectionChoiceUsbLabel": "USB",
+  "usbScreenStatus": "Виберіть пристрій USB",
+  "usbScreenNote": "USB-серіальний інтерфейс активний на підтримуваних пристроях на базі Android та на десктопних платформах.",
+  "usbScreenEmptyState": "Не знайдено жодних пристроїв USB. Підключіть один і перезавантажте.",
+  "usbErrorPermissionDenied": "Було відмовлено у наданні дозволу на використання USB.",
+  "usbErrorDeviceMissing": "Вибране USB-пристрій більше недоступне.",
+  "usbErrorInvalidPort": "Виберіть дійсний USB-пристрій.",
+  "usbErrorBusy": "Ще один запит на підключення через USB вже обробляється.",
+  "usbErrorNotConnected": "Немає підключених пристроїв USB.",
+  "usbErrorOpenFailed": "Не вдалося відкрити вибране USB-пристрій.",
+  "usbErrorConnectFailed": "Не вдалося підключитися до вибраного USB-пристрою.",
+  "usbErrorUnsupported": "Підтримка USB-серіального інтерфейсу не реалізована на цій платформі.",
+  "usbErrorAlreadyActive": "USB-з'єднання вже встановлено.",
+  "usbErrorNoDeviceSelected": "Не було вибрано жодного пристрою USB.",
+  "usbErrorPortClosed": "З'єднання USB не встановлено.",
+  "usbFallbackDeviceName": "Пристрій для передачі даних по веб-серіалах",
+  "@usbConnectionFailed": {
+    "placeholders": {
+      "error": {
+        "type": "String"
+      }
+    }
+  },
+  "usbStatus_searching": "Пошук пристроїв USB...",
+  "usbStatus_notConnected": "Виберіть пристрій USB",
+  "usbConnectionFailed": "Не вдалося встановити з'єднання через USB: {error}",
+  "usbStatus_connecting": "Підключення до USB-пристрою...",
+  "usbErrorConnectTimedOut": "З'єднання не вдалося встановити. Переконайтеся, що пристрій має встановлене програмне забезпечення USB Companion."
 }

lib/main.dart

@@ -1,8 +1,12 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_localizations/flutter_localizations.dart';
+import 'package:flutter/foundation.dart';
 import 'l10n/app_localizations.dart';
 import 'package:provider/provider.dart';
 
+import 'screens/chrome_required_screen.dart';
+import 'utils/platform_info.dart';
+
 import 'connector/meshcore_connector.dart';
 import 'screens/scanner_screen.dart';
 import 'services/storage_service.dart';
@@ -14,6 +18,7 @@ import 'services/ble_debug_log_service.dart';
 import 'services/app_debug_log_service.dart';
 import 'services/background_service.dart';
 import 'services/map_tile_cache_service.dart';
+import 'services/chat_text_scale_service.dart';
 import 'storage/prefs_manager.dart';
 import 'utils/app_logger.dart';
 
@@ -33,6 +38,7 @@ void main() async {
   final appDebugLogService = AppDebugLogService();
   final backgroundService = BackgroundService();
   final mapTileCacheService = MapTileCacheService();
+  final chatTextScaleService = ChatTextScaleService();
 
   // Load settings
   await appSettingsService.loadSettings();
@@ -47,6 +53,9 @@ void main() async {
   final notificationService = NotificationService();
   await notificationService.initialize();
   await backgroundService.initialize();
+  _registerThirdPartyLicenses();
+
+  await chatTextScaleService.initialize();
 
   // Wire up connector with services
   connector.initialize(
@@ -76,10 +85,32 @@ void main() async {
       bleDebugLogService: bleDebugLogService,
       appDebugLogService: appDebugLogService,
       mapTileCacheService: mapTileCacheService,
+      chatTextScaleService: chatTextScaleService,
     ),
   );
 }
 
+void _registerThirdPartyLicenses() {
+  LicenseRegistry.addLicense(() async* {
+    yield const LicenseEntryWithLineBreaks(
+      <String>['Open-Meteo Elevation API Data'],
+      '''
+Data used by LOS elevation lookups is provided by Open-Meteo.
+
+Open-Meteo terms and attribution:
+https://open-meteo.com/en/terms
+
+Elevation API:
+https://open-meteo.com/en/docs/elevation-api
+
+Attribution license reference:
+Creative Commons Attribution 4.0 International (CC BY 4.0)
+https://creativecommons.org/licenses/by/4.0/
+''',
+    );
+  });
+}
+
 class MeshCoreApp extends StatelessWidget {
   final MeshCoreConnector connector;
   final MessageRetryService retryService;
@@ -89,6 +120,7 @@ class MeshCoreApp extends StatelessWidget {
   final BleDebugLogService bleDebugLogService;
   final AppDebugLogService appDebugLogService;
   final MapTileCacheService mapTileCacheService;
+  final ChatTextScaleService chatTextScaleService;
 
   const MeshCoreApp({
     super.key,
@@ -100,6 +132,7 @@ class MeshCoreApp extends StatelessWidget {
     required this.bleDebugLogService,
     required this.appDebugLogService,
     required this.mapTileCacheService,
+    required this.chatTextScaleService,
   });
 
   @override
@@ -112,6 +145,7 @@ class MeshCoreApp extends StatelessWidget {
         ChangeNotifierProvider.value(value: appSettingsService),
         ChangeNotifierProvider.value(value: bleDebugLogService),
         ChangeNotifierProvider.value(value: appDebugLogService),
+        ChangeNotifierProvider.value(value: chatTextScaleService),
         Provider.value(value: storage),
         Provider.value(value: mapTileCacheService),
       ],
@@ -156,7 +190,9 @@ class MeshCoreApp extends StatelessWidget {
               NotificationService().setLocale(locale);
               return child ?? const SizedBox.shrink();
             },
-            home: const ScannerScreen(),
+            home: (PlatformInfo.isWeb && !PlatformInfo.isChrome)
+                ? const ChromeRequiredScreen()
+                : const ScannerScreen(),
           );
         },
       ),

lib/models/app_settings.dart

@@ -1,3 +1,16 @@
+enum UnitSystem { metric, imperial }
+
+extension UnitSystemValue on UnitSystem {
+  String get value {
+    switch (this) {
+      case UnitSystem.imperial:
+        return 'imperial';
+      case UnitSystem.metric:
+        return 'metric';
+    }
+  }
+}
+
 class AppSettings {
   static const Object _unset = Object();
 
@@ -9,6 +22,8 @@ class AppSettings {
   final bool mapKeyPrefixEnabled;
   final String mapKeyPrefix;
   final bool mapShowMarkers;
+  final bool mapShowGuessedLocations;
+  final bool enableMessageTracing;
   final Map<String, double>? mapCacheBounds;
   final int mapCacheMinZoom;
   final int mapCacheMaxZoom;
@@ -21,6 +36,9 @@ class AppSettings {
   final String? languageOverride; // null = system default
   final bool appDebugLogEnabled;
   final Map<String, String> batteryChemistryByDeviceId;
+  final Map<String, String> batteryChemistryByRepeaterId;
+  final UnitSystem unitSystem;
+  final Set<String> mutedChannels;
 
   AppSettings({
     this.clearPathOnMaxRetry = false,
@@ -31,6 +49,8 @@ class AppSettings {
     this.mapKeyPrefixEnabled = false,
     this.mapKeyPrefix = '',
     this.mapShowMarkers = true,
+    this.mapShowGuessedLocations = true,
+    this.enableMessageTracing = false,
     this.mapCacheBounds,
     this.mapCacheMinZoom = 10,
     this.mapCacheMaxZoom = 15,
@@ -43,7 +63,12 @@ class AppSettings {
     this.languageOverride,
     this.appDebugLogEnabled = false,
     Map<String, String>? batteryChemistryByDeviceId,
-  }) : batteryChemistryByDeviceId = batteryChemistryByDeviceId ?? {};
+    Map<String, String>? batteryChemistryByRepeaterId,
+    this.unitSystem = UnitSystem.metric,
+    Set<String>? mutedChannels,
+  }) : batteryChemistryByDeviceId = batteryChemistryByDeviceId ?? {},
+       batteryChemistryByRepeaterId = batteryChemistryByRepeaterId ?? {},
+       mutedChannels = mutedChannels ?? {};
 
   Map<String, dynamic> toJson() {
     return {
@@ -55,6 +80,8 @@ class AppSettings {
       'map_key_prefix_enabled': mapKeyPrefixEnabled,
       'map_key_prefix': mapKeyPrefix,
       'map_show_markers': mapShowMarkers,
+      'map_show_guessed_locations': mapShowGuessedLocations,
+      'enable_message_tracing': enableMessageTracing,
       'map_cache_bounds': mapCacheBounds,
       'map_cache_min_zoom': mapCacheMinZoom,
       'map_cache_max_zoom': mapCacheMaxZoom,
@@ -67,10 +94,20 @@ class AppSettings {
       'language_override': languageOverride,
       'app_debug_log_enabled': appDebugLogEnabled,
       'battery_chemistry_by_device_id': batteryChemistryByDeviceId,
+      'battery_chemistry_by_repeater_id': batteryChemistryByRepeaterId,
+      'unit_system': unitSystem.value,
+      'muted_channels': mutedChannels.toList(),
     };
   }
 
   factory AppSettings.fromJson(Map<String, dynamic> json) {
+    UnitSystem parseUnitSystem(dynamic value) {
+      if (value is String && value.toLowerCase() == 'imperial') {
+        return UnitSystem.imperial;
+      }
+      return UnitSystem.metric;
+    }
+
     return AppSettings(
       clearPathOnMaxRetry: json['clear_path_on_max_retry'] as bool? ?? false,
       mapShowRepeaters: json['map_show_repeaters'] as bool? ?? true,
@@ -81,6 +118,9 @@ class AppSettings {
       mapKeyPrefixEnabled: json['map_key_prefix_enabled'] as bool? ?? false,
       mapKeyPrefix: json['map_key_prefix'] as String? ?? '',
       mapShowMarkers: json['map_show_markers'] as bool? ?? true,
+      mapShowGuessedLocations:
+          json['map_show_guessed_locations'] as bool? ?? true,
+      enableMessageTracing: json['enable_message_tracing'] as bool? ?? false,
       mapCacheBounds: (json['map_cache_bounds'] as Map?)?.map(
         (key, value) => MapEntry(key.toString(), (value as num).toDouble()),
       ),
@@ -101,6 +141,17 @@ class AppSettings {
             (key, value) => MapEntry(key.toString(), value.toString()),
           ) ??
           {},
+      batteryChemistryByRepeaterId:
+          (json['battery_chemistry_by_repeater_id'] as Map?)?.map(
+            (key, value) => MapEntry(key.toString(), value.toString()),
+          ) ??
+          {},
+      unitSystem: parseUnitSystem(json['unit_system']),
+      mutedChannels:
+          ((json['muted_channels'] as List?)
+              ?.map((e) => e.toString())
+              .toSet()) ??
+          {},
     );
   }
 
@@ -113,6 +164,8 @@ class AppSettings {
     bool? mapKeyPrefixEnabled,
     String? mapKeyPrefix,
     bool? mapShowMarkers,
+    bool? mapShowGuessedLocations,
+    bool? enableMessageTracing,
     Object? mapCacheBounds = _unset,
     int? mapCacheMinZoom,
     int? mapCacheMaxZoom,
@@ -125,6 +178,9 @@ class AppSettings {
     Object? languageOverride = _unset,
     bool? appDebugLogEnabled,
     Map<String, String>? batteryChemistryByDeviceId,
+    Map<String, String>? batteryChemistryByRepeaterId,
+    UnitSystem? unitSystem,
+    Set<String>? mutedChannels,
   }) {
     return AppSettings(
       clearPathOnMaxRetry: clearPathOnMaxRetry ?? this.clearPathOnMaxRetry,
@@ -135,6 +191,9 @@ class AppSettings {
       mapKeyPrefixEnabled: mapKeyPrefixEnabled ?? this.mapKeyPrefixEnabled,
       mapKeyPrefix: mapKeyPrefix ?? this.mapKeyPrefix,
       mapShowMarkers: mapShowMarkers ?? this.mapShowMarkers,
+      mapShowGuessedLocations:
+          mapShowGuessedLocations ?? this.mapShowGuessedLocations,
+      enableMessageTracing: enableMessageTracing ?? this.enableMessageTracing,
       mapCacheBounds: mapCacheBounds == _unset
           ? this.mapCacheBounds
           : mapCacheBounds as Map<String, double>?,
@@ -154,6 +213,10 @@ class AppSettings {
       appDebugLogEnabled: appDebugLogEnabled ?? this.appDebugLogEnabled,
       batteryChemistryByDeviceId:
           batteryChemistryByDeviceId ?? this.batteryChemistryByDeviceId,
+      batteryChemistryByRepeaterId:
+          batteryChemistryByRepeaterId ?? this.batteryChemistryByRepeaterId,
+      unitSystem: unitSystem ?? this.unitSystem,
+      mutedChannels: mutedChannels ?? this.mutedChannels,
     );
   }
 }

lib/models/contact.dart

@@ -5,6 +5,7 @@ class Contact {
   final Uint8List publicKey;
   final String name;
   final int type;
+  final int flags;
   final int pathLength; // -1 = flood, 0+ = direct hops (from device)
   final Uint8List path; // Path bytes from device
   final int?
@@ -19,6 +20,7 @@ class Contact {
     required this.publicKey,
     required this.name,
     required this.type,
+    this.flags = 0,
     required this.pathLength,
     required this.path,
     this.pathOverride,
@@ -58,11 +60,13 @@ class Contact {
   }
 
   bool get hasLocation => latitude != null && longitude != null;
+  bool get isFavorite => (flags & contactFlagFavorite) != 0;
 
   Contact copyWith({
     Uint8List? publicKey,
     String? name,
     int? type,
+    int? flags,
     int? pathLength,
     Uint8List? path,
     int? pathOverride,
@@ -77,6 +81,7 @@ class Contact {
       publicKey: publicKey ?? this.publicKey,
       name: name ?? this.name,
       type: type ?? this.type,
+      flags: flags ?? this.flags,
       pathLength: pathLength ?? this.pathLength,
       path: path ?? this.path,
       pathOverride: clearPathOverride
@@ -119,7 +124,7 @@ class Contact {
     final pathBytes = _pathBytesForDisplay;
     Uint8List? traceBytes;
 
-    if (pathLength <= 0) {
+    if (pathBytes.isEmpty) {
       traceBytes = Uint8List(1);
       traceBytes[0] = publicKey[0];
       return traceBytes;
@@ -160,43 +165,49 @@ class Contact {
   }
 
   static Contact? fromFrame(Uint8List data) {
-    if (data.length < contactFrameSize) return null;
+    if (data.isEmpty) return null;
     if (data[0] != respCodeContact) return null;
+    try {
+      final pubKey = Uint8List.fromList(
+        data.sublist(contactPubKeyOffset, contactPubKeyOffset + pubKeySize),
+      );
+      final type = data[contactTypeOffset];
+      final flags = data[contactFlagsOffset];
+      final pathLen = data[contactPathLenOffset].toSigned(8);
+      final safePathLen = pathLen > 0
+          ? (pathLen > maxPathSize ? maxPathSize : pathLen)
+          : 0;
+      final pathBytes = safePathLen > 0
+          ? Uint8List.fromList(
+              data.sublist(contactPathOffset, contactPathOffset + safePathLen),
+            )
+          : Uint8List(0);
+      final name = readCString(data, contactNameOffset, maxNameSize);
+      final lastmod = readUint32LE(data, contactLastModOffset);
 
-    final pubKey = Uint8List.fromList(
+      double? lat, lon;
-      data.sublist(contactPubKeyOffset, contactPubKeyOffset + pubKeySize),
+      final latRaw = readInt32LE(data, contactLatOffset);
-    );
+      final lonRaw = readInt32LE(data, contactLonOffset);
-    final type = data[contactTypeOffset];
+      if (latRaw != 0 || lonRaw != 0) {
-    final pathLen = data[contactPathLenOffset].toSigned(8);
+        lat = latRaw / 1e6;
-    final safePathLen = pathLen > 0
+        lon = lonRaw / 1e6;
-        ? (pathLen > maxPathSize ? maxPathSize : pathLen)
+      }
-        : 0;
-    final pathBytes = safePathLen > 0
-        ? Uint8List.fromList(
-            data.sublist(contactPathOffset, contactPathOffset + safePathLen),
-          )
-        : Uint8List(0);
-    final name = readCString(data, contactNameOffset, maxNameSize);
-    final lastmod = readUint32LE(data, contactLastmodOffset);
 
-    double? lat, lon;
+      return Contact(
-    final latRaw = readInt32LE(data, contactLatOffset);
+        publicKey: pubKey,
-    final lonRaw = readInt32LE(data, contactLonOffset);
+        name: name.isEmpty ? 'Unknown' : name,
-    if (latRaw != 0 || lonRaw != 0) {
+        type: type,
-      lat = latRaw / 1e6;
+        flags: flags,
-      lon = lonRaw / 1e6;
+        pathLength: pathLen,
+        path: pathBytes,
+        latitude: lat,
+        longitude: lon,
+        lastSeen: DateTime.fromMillisecondsSinceEpoch(lastmod * 1000),
+      );
+    } catch (e) {
+      // If parsing fails, return null
+      return null;
     }
-
-    return Contact(
-      publicKey: pubKey,
-      name: name.isEmpty ? 'Unknown' : name,
-      type: type,
-      pathLength: pathLen,
-      path: pathBytes,
-      latitude: lat,
-      longitude: lon,
-      lastSeen: DateTime.fromMillisecondsSinceEpoch(lastmod * 1000),
-    );
   }
 
   @override

lib/models/discovery_contact.dart

@@ -0,0 +1,105 @@
+import 'dart:typed_data';
+import '../connector/meshcore_protocol.dart';
+
+class DiscoveryContact {
+  final Uint8List rawPacket;
+  final Uint8List publicKey;
+  final String name;
+  final int type;
+  final int pathLength; // -1 = flood, 0+ = direct hops (from device)
+  final Uint8List path; // Path bytes from device
+  final double? latitude;
+  final double? longitude;
+  final DateTime lastSeen;
+
+  DiscoveryContact({
+    required this.rawPacket,
+    required this.publicKey,
+    required this.name,
+    required this.type,
+    required this.pathLength,
+    required this.path,
+    this.latitude,
+    this.longitude,
+    required this.lastSeen,
+  });
+
+  String get publicKeyHex => pubKeyToHex(publicKey);
+
+  String get typeLabel {
+    switch (type) {
+      case advTypeChat:
+        return 'Chat';
+      case advTypeRepeater:
+        return 'Repeater';
+      case advTypeRoom:
+        return 'Room';
+      case advTypeSensor:
+        return 'Sensor';
+      default:
+        return 'Unknown';
+    }
+  }
+
+  String get pathLabel {
+    if (pathLength < 0) return 'Flood';
+    if (pathLength == 0) return 'Direct';
+    return '$pathLength hops';
+  }
+
+  bool get hasLocation => latitude != null && longitude != null;
+
+  DiscoveryContact copyWith({
+    Uint8List? rawPacket,
+    Uint8List? publicKey,
+    String? name,
+    int? type,
+    int? pathLength,
+    Uint8List? path,
+    double? latitude,
+    double? longitude,
+    DateTime? lastSeen,
+  }) {
+    return DiscoveryContact(
+      rawPacket: rawPacket ?? this.rawPacket,
+      publicKey: publicKey ?? this.publicKey,
+      name: name ?? this.name,
+      type: type ?? this.type,
+      pathLength: pathLength ?? this.pathLength,
+      path: path ?? this.path,
+      latitude: latitude ?? this.latitude,
+      longitude: longitude ?? this.longitude,
+      lastSeen: lastSeen ?? this.lastSeen,
+    );
+  }
+
+  String get pathIdList {
+    final pathBytes = path;
+    if (pathBytes.isEmpty) return '';
+    final parts = <String>[];
+    final groupSize = pathHashSize;
+    for (int i = 0; i < pathBytes.length; i += groupSize) {
+      final end = (i + groupSize) <= pathBytes.length
+          ? (i + groupSize)
+          : pathBytes.length;
+      final chunk = pathBytes.sublist(i, end);
+      parts.add(
+        chunk
+            .map((b) => b.toRadixString(16).padLeft(2, '0').toUpperCase())
+            .join(),
+      );
+    }
+    return parts.join(',');
+  }
+
+  String get shortPubKeyHex {
+    return "<${publicKeyHex.substring(0, 8)}...${publicKeyHex.substring(publicKeyHex.length - 8)}>";
+  }
+
+  @override
+  bool operator ==(Object other) =>
+      other is DiscoveryContact && publicKeyHex == other.publicKeyHex;
+
+  @override
+  int get hashCode => publicKeyHex.hashCode;
+}

lib/screens/app_debug_log_screen.dart

@@ -4,6 +4,7 @@ import 'package:provider/provider.dart';
 
 import '../l10n/l10n.dart';
 import '../services/app_debug_log_service.dart';
+import '../widgets/adaptive_app_bar_title.dart';
 
 class AppDebugLogScreen extends StatelessWidget {
   const AppDebugLogScreen({super.key});
@@ -17,7 +18,7 @@ class AppDebugLogScreen extends StatelessWidget {
 
         return Scaffold(
           appBar: AppBar(
-            title: Text(context.l10n.debugLog_appTitle),
+            title: AdaptiveAppBarTitle(context.l10n.debugLog_appTitle),
             centerTitle: true,
             actions: [
               IconButton(

lib/screens/app_settings_screen.dart

@@ -3,8 +3,10 @@ import 'package:provider/provider.dart';
 
 import '../connector/meshcore_connector.dart';
 import '../l10n/l10n.dart';
+import '../models/app_settings.dart';
 import '../services/app_settings_service.dart';
 import '../services/notification_service.dart';
+import '../widgets/adaptive_app_bar_title.dart';
 import 'map_cache_screen.dart';
 
 class AppSettingsScreen extends StatelessWidget {
@@ -14,7 +16,7 @@ class AppSettingsScreen extends StatelessWidget {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
-        title: Text(context.l10n.appSettings_title),
+        title: AdaptiveAppBarTitle(context.l10n.appSettings_title),
         centerTitle: true,
       ),
       body: SafeArea(
@@ -80,6 +82,18 @@ class AppSettingsScreen extends StatelessWidget {
             trailing: const Icon(Icons.chevron_right),
             onTap: () => _showLanguageDialog(context, settingsService),
           ),
+          const Divider(height: 1),
+          SwitchListTile(
+            secondary: const Icon(Icons.location_searching),
+            title: Text(context.l10n.appSettings_enableMessageTracing),
+            subtitle: Text(
+              context.l10n.appSettings_enableMessageTracingSubtitle,
+            ),
+            value: settingsService.settings.enableMessageTracing,
+            onChanged: (value) {
+              settingsService.setEnableMessageTracing(value);
+            },
+          ),
         ],
       ),
     );
@@ -360,6 +374,18 @@ class AppSettingsScreen extends StatelessWidget {
             onTap: () => _showTimeFilterDialog(context, settingsService),
           ),
           const Divider(height: 1),
+          ListTile(
+            leading: const Icon(Icons.straighten),
+            title: Text(context.l10n.appSettings_unitsTitle),
+            subtitle: Text(
+              settingsService.settings.unitSystem == UnitSystem.imperial
+                  ? context.l10n.appSettings_unitsImperial
+                  : context.l10n.appSettings_unitsMetric,
+            ),
+            trailing: const Icon(Icons.chevron_right),
+            onTap: () => _showUnitsDialog(context, settingsService),
+          ),
+          const Divider(height: 1),
           ListTile(
             leading: const Icon(Icons.download_outlined),
             title: Text(context.l10n.appSettings_offlineMapCache),
@@ -706,6 +732,46 @@ class AppSettingsScreen extends StatelessWidget {
     );
   }
 
+  void _showUnitsDialog(
+    BuildContext context,
+    AppSettingsService settingsService,
+  ) {
+    showDialog(
+      context: context,
+      builder: (context) => AlertDialog(
+        title: Text(context.l10n.appSettings_unitsTitle),
+        content: RadioGroup<UnitSystem>(
+          groupValue: settingsService.settings.unitSystem,
+          onChanged: (value) {
+            if (value != null) {
+              settingsService.setUnitSystem(value);
+              Navigator.pop(context);
+            }
+          },
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              ListTile(
+                title: Text(context.l10n.appSettings_unitsMetric),
+                leading: const Radio<UnitSystem>(value: UnitSystem.metric),
+              ),
+              ListTile(
+                title: Text(context.l10n.appSettings_unitsImperial),
+                leading: const Radio<UnitSystem>(value: UnitSystem.imperial),
+              ),
+            ],
+          ),
+        ),
+        actions: [
+          TextButton(
+            onPressed: () => Navigator.pop(context),
+            child: Text(context.l10n.common_close),
+          ),
+        ],
+      ),
+    );
+  }
+
   Widget _buildDebugCard(
     BuildContext context,
     AppSettingsService settingsService,

lib/screens/ble_debug_log_screen.dart

@@ -4,6 +4,7 @@ import 'package:flutter/services.dart';
 import '../l10n/l10n.dart';
 import '../services/ble_debug_log_service.dart';
 import '../connector/meshcore_protocol.dart';
+import '../widgets/adaptive_app_bar_title.dart';
 
 enum _BleLogView { frames, rawLogRx }
 
@@ -29,7 +30,7 @@ class _BleDebugLogScreenState extends State<BleDebugLogScreen> {
             : rawEntries.isNotEmpty;
         return Scaffold(
           appBar: AppBar(
-            title: Text(context.l10n.debugLog_bleTitle),
+            title: AdaptiveAppBarTitle(context.l10n.debugLog_bleTitle),
             actions: [
               IconButton(
                 tooltip: context.l10n.debugLog_copyLog,

lib/screens/channel_chat_screen.dart

@@ -1,4 +1,5 @@
 import 'dart:convert';
+import 'dart:math' as math;
 
 import 'package:flutter/material.dart';
 import 'package:flutter/scheduler.dart';
@@ -16,11 +17,15 @@ import '../helpers/utf8_length_limiter.dart';
 import '../l10n/l10n.dart';
 import '../models/channel.dart';
 import '../models/channel_message.dart';
+import '../services/app_settings_service.dart';
+import '../services/chat_text_scale_service.dart';
 import '../utils/emoji_utils.dart';
+import '../widgets/chat_zoom_wrapper.dart';
 import '../widgets/emoji_picker.dart';
 import '../widgets/gif_message.dart';
 import '../widgets/jump_to_bottom_button.dart';
 import '../widgets/gif_picker.dart';
+import '../widgets/message_status_icon.dart';
 import 'channel_message_path_screen.dart';
 import 'map_screen.dart';
 
@@ -216,37 +221,50 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
 
                   return Stack(
                     children: [
-                      ListView.builder(
+                      ChatZoomWrapper(
-                        reverse: true, // List grows from bottom up
+                        child: ListView.builder(
-                        controller: _scrollController,
+                          reverse: true, // List grows from bottom up
-                        padding: const EdgeInsets.all(8),
+                          controller: _scrollController,
-                        itemCount: itemCount,
+                          padding: const EdgeInsets.all(8),
-                        itemBuilder: (context, index) {
+                          itemCount: itemCount,
-                          // Loading indicator now appears at end (bottom) of reversed list
+                          itemBuilder: (context, index) {
-                          if (_isLoadingOlder && index == itemCount - 1) {
+                            // Loading indicator now appears at end (bottom) of reversed list
-                            return const Padding(
+                            if (_isLoadingOlder && index == itemCount - 1) {
-                              padding: EdgeInsets.symmetric(vertical: 16),
+                              return const Padding(
-                              child: Center(
+                                padding: EdgeInsets.symmetric(vertical: 16),
-                                child: SizedBox(
+                                child: Center(
-                                  width: 20,
+                                  child: SizedBox(
-                                  height: 20,
+                                    width: 20,
-                                  child: CircularProgressIndicator(
+                                    height: 20,
-                                    strokeWidth: 2,
+                                    child: CircularProgressIndicator(
+                                      strokeWidth: 2,
+                                    ),
                                   ),
                                 ),
+                              );
+                            }
+                            final messageIndex = index;
+                            final message = reversedMessages[messageIndex];
+                            if (!_messageKeys.containsKey(message.messageId)) {
+                              _messageKeys[message.messageId] = GlobalKey();
+                            }
+                            return Container(
+                              key: _messageKeys[message.messageId]!,
+                              child: Builder(
+                                builder: (context) {
+                                  final textScale = context
+                                      .select<ChatTextScaleService, double>(
+                                        (service) => service.scale,
+                                      );
+                                  return _buildMessageBubble(
+                                    message,
+                                    textScale,
+                                  );
+                                },
                               ),
                             );
-                          }
+                          },
-                          final messageIndex = index;
+                        ),
-                          final message = reversedMessages[messageIndex];
-                          if (!_messageKeys.containsKey(message.messageId)) {
-                            _messageKeys[message.messageId] = GlobalKey();
-                          }
-                          return Container(
-                            key: _messageKeys[message.messageId]!,
-                            child: _buildMessageBubble(message),
-                          );
-                        },
                       ),
                       JumpToBottomButton(scrollController: _scrollController),
                     ],
@@ -261,7 +279,9 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
     );
   }
 
-  Widget _buildMessageBubble(ChannelMessage message) {
+  Widget _buildMessageBubble(ChannelMessage message, double textScale) {
+    final settingsService = context.watch<AppSettingsService>();
+    final enableTracing = settingsService.settings.enableMessageTracing;
     final isOutgoing = message.isOutgoing;
     final gifId = _parseGifId(message.text);
     final poi = _parsePoiMessage(message.text);
@@ -271,107 +291,184 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
               ? message.pathVariants.first
               : Uint8List(0));
 
-    return Padding(
+    const maxSwipeOffset = 64.0;
-      padding: const EdgeInsets.symmetric(vertical: 4, horizontal: 8),
+    const replySwipeThreshold = 64.0;
-      child: Column(
+    const bodyFontSize = 14.0;
-        crossAxisAlignment: isOutgoing
+    final messageBody = Column(
-            ? CrossAxisAlignment.end
+      crossAxisAlignment: isOutgoing
-            : CrossAxisAlignment.start,
+          ? CrossAxisAlignment.end
-        children: [
+          : CrossAxisAlignment.start,
-          Row(
+      children: [
-            mainAxisAlignment: isOutgoing
+        Row(
-                ? MainAxisAlignment.end
+          mainAxisAlignment: isOutgoing
-                : MainAxisAlignment.start,
+              ? MainAxisAlignment.end
-            crossAxisAlignment: CrossAxisAlignment.start,
+              : MainAxisAlignment.start,
-            children: [
+          crossAxisAlignment: CrossAxisAlignment.start,
-              if (!isOutgoing) ...[
+          children: [
-                _buildAvatar(message.senderName),
+            if (!isOutgoing) ...[
-                const SizedBox(width: 8),
+              _buildAvatar(message.senderName),
-              ],
+              const SizedBox(width: 8),
-              Flexible(
+            ],
-                child: GestureDetector(
+            Flexible(
-                  onTap: () => _showMessagePathInfo(message),
+              child: GestureDetector(
-                  onLongPress: () => _showMessageActions(message),
+                onTap: () => _showMessagePathInfo(message),
-                  child: Container(
+                onLongPress: () => _showMessageActions(message),
-                    padding: gifId != null
+                child: Container(
-                        ? const EdgeInsets.all(4)
+                  padding: gifId != null
-                        : const EdgeInsets.symmetric(
+                      ? const EdgeInsets.all(4)
-                            horizontal: 12,
+                      : const EdgeInsets.symmetric(horizontal: 12, vertical: 8),
-                            vertical: 8,
+                  constraints: BoxConstraints(
+                    maxWidth: MediaQuery.of(context).size.width * 0.65,
+                  ),
+                  decoration: BoxDecoration(
+                    color: isOutgoing
+                        ? Theme.of(context).colorScheme.primaryContainer
+                        : Theme.of(context).colorScheme.surfaceContainerHighest,
+                    borderRadius: BorderRadius.circular(12),
+                  ),
+                  child: Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    children: [
+                      if (!isOutgoing) ...[
+                        Padding(
+                          padding: gifId != null
+                              ? const EdgeInsets.only(
+                                  left: 8,
+                                  top: 4,
+                                  bottom: 4,
+                                )
+                              : EdgeInsets.zero,
+                          child: Text(
+                            message.senderName,
+                            style: TextStyle(
+                              fontSize: 12,
+                              fontWeight: FontWeight.bold,
+                              color: Theme.of(context).colorScheme.primary,
+                            ),
                           ),
-                    constraints: BoxConstraints(
+                        ),
-                      maxWidth: MediaQuery.of(context).size.width * 0.65,
+                        if (gifId == null) const SizedBox(height: 4),
-                    ),
+                      ],
-                    decoration: BoxDecoration(
+                      if (message.replyToMessageId != null) ...[
-                      color: isOutgoing
+                        _buildReplyPreview(message, textScale),
-                          ? Theme.of(context).colorScheme.primaryContainer
+                        const SizedBox(height: 8),
-                          : Theme.of(
+                      ],
-                              context,
+                      if (poi != null)
-                            ).colorScheme.surfaceContainerHighest,
+                        _buildPoiMessage(
-                      borderRadius: BorderRadius.circular(12),
+                          context,
-                    ),
+                          poi,
-                    child: Column(
+                          isOutgoing,
-                      crossAxisAlignment: CrossAxisAlignment.start,
+                          textScale,
-                      children: [
+                          trailing: (!enableTracing && isOutgoing)
-                        if (!isOutgoing) ...[
+                              ? Padding(
-                          Padding(
+                                  padding: const EdgeInsets.only(bottom: 2),
-                            padding: gifId != null
+                                  child: MessageStatusIcon(
-                                ? const EdgeInsets.only(
+                                    isAcked:
-                                    left: 8,
+                                        message.status ==
-                                    top: 4,
+                                            ChannelMessageStatus.sent &&
-                                    bottom: 4,
+                                        displayPath.isNotEmpty,
-                                  )
+                                    isFailed:
-                                : EdgeInsets.zero,
+                                        message.status ==
-                            child: Text(
+                                        ChannelMessageStatus.failed,
-                              message.senderName,
+                                  ),
-                              style: TextStyle(
+                                )
-                                fontSize: 12,
+                              : null,
-                                fontWeight: FontWeight.bold,
+                        )
-                                color: Theme.of(context).colorScheme.primary,
+                      else if (gifId != null)
+                        Stack(
+                          children: [
+                            ClipRRect(
+                              borderRadius: BorderRadius.circular(8),
+                              child: GifMessage(
+                                url:
+                                    'https://media.giphy.com/media/$gifId/giphy.gif',
+                                backgroundColor: Colors.transparent,
+                                fallbackTextColor: isOutgoing
+                                    ? Theme.of(context)
+                                          .colorScheme
+                                          .onPrimaryContainer
+                                          .withValues(alpha: 0.7)
+                                    : Theme.of(context).colorScheme.onSurface
+                                          .withValues(alpha: 0.6),
                               ),
                             ),
-                          ),
+                            if (!enableTracing && isOutgoing)
-                          if (gifId == null) const SizedBox(height: 4),
+                              Positioned(
-                        ],
+                                top: 0,
-                        if (message.replyToMessageId != null) ...[
+                                right: 0,
-                          _buildReplyPreview(message),
+                                child: Container(
-                          const SizedBox(height: 8),
+                                  padding: const EdgeInsets.all(3),
-                        ],
+                                  decoration: BoxDecoration(
-                        if (poi != null)
+                                    color: isOutgoing
-                          _buildPoiMessage(context, poi, isOutgoing)
+                                        ? Theme.of(
-                        else if (gifId != null)
+                                            context,
-                          ClipRRect(
+                                          ).colorScheme.primaryContainer
-                            borderRadius: BorderRadius.circular(8),
+                                        : Theme.of(
-                            child: GifMessage(
+                                            context,
-                              url:
+                                          ).colorScheme.surfaceContainerHighest,
-                                  'https://media.giphy.com/media/$gifId/giphy.gif',
+                                    borderRadius: const BorderRadius.only(
-                              backgroundColor: Colors.transparent,
+                                      bottomLeft: Radius.circular(10),
-                              fallbackTextColor: isOutgoing
+                                      topRight: Radius.circular(8),
-                                  ? Theme.of(context)
+                                    ),
-                                        .colorScheme
+                                  ),
-                                        .onPrimaryContainer
+                                  child: MessageStatusIcon(
-                                        .withValues(alpha: 0.7)
+                                    isAcked:
-                                  : Theme.of(context).colorScheme.onSurface
+                                        message.status ==
-                                        .withValues(alpha: 0.6),
+                                            ChannelMessageStatus.sent &&
+                                        displayPath.isNotEmpty,
+                                    isFailed:
+                                        message.status ==
+                                        ChannelMessageStatus.failed,
+                                  ),
+                                ),
+                              ),
+                          ],
+                        )
+                      else
+                        Row(
+                          mainAxisSize: MainAxisSize.min,
+                          crossAxisAlignment: CrossAxisAlignment.end,
+                          children: [
+                            Flexible(
+                              child: Linkify(
+                                text: message.text,
+                                style: TextStyle(
+                                  fontSize: bodyFontSize * textScale,
+                                ),
+                                linkStyle: TextStyle(
+                                  fontSize: bodyFontSize * textScale,
+                                  color: Colors.green,
+                                  decoration: TextDecoration.underline,
+                                ),
+                                options: const LinkifyOptions(
+                                  humanize: false,
+                                  defaultToHttps: false,
+                                ),
+                                linkifiers: const [UrlLinkifier()],
+                                onOpen: (link) => LinkHandler.handleLinkTap(
+                                  context,
+                                  link.url,
+                                ),
+                              ),
                             ),
-                          )
+                            if (!enableTracing && isOutgoing) ...[
-                        else
+                              const SizedBox(width: 4),
-                          Linkify(
+                              Padding(
-                            text: message.text,
+                                padding: const EdgeInsets.only(bottom: 2),
-                            style: const TextStyle(fontSize: 14),
+                                child: MessageStatusIcon(
-                            linkStyle: const TextStyle(
+                                  isAcked:
-                              fontSize: 14,
+                                      message.status ==
-                              color: Colors.green,
+                                          ChannelMessageStatus.sent &&
-                              decoration: TextDecoration.underline,
+                                      displayPath.isNotEmpty,
-                            ),
+                                  isFailed:
-                            options: const LinkifyOptions(
+                                      message.status ==
-                              humanize: false,
+                                      ChannelMessageStatus.failed,
-                              defaultToHttps: false,
+                                ),
-                            ),
+                              ),
-                            linkifiers: const [UrlLinkifier()],
+                            ],
-                            onOpen: (link) =>
+                          ],
-                                LinkHandler.handleLinkTap(context, link.url),
+                        ),
-                          ),
+                      if (enableTracing) ...[
                         if (displayPath.isNotEmpty) ...[
                           const SizedBox(height: 4),
                           Padding(
@@ -443,25 +540,81 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
                           ),
                         ),
                       ],
-                    ),
+                    ],
                   ),
                 ),
               ),
-            ],
-          ),
-          if (message.reactions.isNotEmpty) ...[
-            const SizedBox(height: 4),
-            Padding(
-              padding: EdgeInsets.only(left: isOutgoing ? 0 : 48),
-              child: _buildReactionsDisplay(message),
             ),
           ],
+        ),
+        if (message.reactions.isNotEmpty) ...[
+          const SizedBox(height: 4),
+          Padding(
+            padding: EdgeInsets.only(left: isOutgoing ? 0 : 48),
+            child: _buildReactionsDisplay(message),
+          ),
         ],
-      ),
+      ],
+    );
+
+    if (!isOutgoing) {
+      return _SwipeReplyBubble(
+        maxSwipeOffset: maxSwipeOffset,
+        replySwipeThreshold: replySwipeThreshold,
+        onReplyTriggered: () => _setReplyingTo(message),
+        hintBuilder: ({required isStart}) =>
+            _buildReplySwipeHint(isStart: isStart),
+        child: messageBody,
+      );
+    } else {
+      return Padding(
+        padding: const EdgeInsets.symmetric(vertical: 4),
+        child: messageBody,
+      );
+    }
+  }
+
+  Widget _buildReplySwipeHint({required bool isStart}) {
+    final colorScheme = Theme.of(context).colorScheme;
+    final content = Row(
+      mainAxisSize: MainAxisSize.min,
+      children: [
+        Icon(Icons.reply, color: colorScheme.primary),
+        const SizedBox(width: 6),
+        Text(
+          context.l10n.chat_reply,
+          style: TextStyle(
+            color: colorScheme.primary,
+            fontWeight: FontWeight.w600,
+          ),
+        ),
+      ],
+    );
+
+    return Container(
+      alignment: isStart ? Alignment.centerLeft : Alignment.centerRight,
+      padding: const EdgeInsets.symmetric(horizontal: 16),
+      color: colorScheme.primary.withValues(alpha: 0.08),
+      child: isStart
+          ? content
+          : Row(
+              mainAxisSize: MainAxisSize.min,
+              children: [
+                Text(
+                  context.l10n.chat_reply,
+                  style: TextStyle(
+                    color: colorScheme.primary,
+                    fontWeight: FontWeight.w600,
+                  ),
+                ),
+                const SizedBox(width: 6),
+                Icon(Icons.reply, color: colorScheme.primary),
+              ],
+            ),
     );
   }
 
-  Widget _buildReplyPreview(ChannelMessage message) {
+  Widget _buildReplyPreview(ChannelMessage message, double textScale) {
     final connector = context.read<MeshCoreConnector>();
     final isOwnNode = message.replyToSenderName == connector.selfName;
     final replyText = message.replyToText ?? '';
@@ -489,7 +642,7 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
           const SizedBox(width: 4),
           Text(
             context.l10n.chat_location,
-            style: TextStyle(fontSize: 12, color: previewTextColor),
+            style: TextStyle(fontSize: 12 * textScale, color: previewTextColor),
           ),
         ],
       );
@@ -499,7 +652,7 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
         maxLines: 2,
         overflow: TextOverflow.ellipsis,
         style: TextStyle(
-          fontSize: 12,
+          fontSize: 12 * textScale,
           color: previewTextColor,
           fontStyle: FontStyle.italic,
         ),
@@ -523,7 +676,7 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
             Text(
               context.l10n.chat_replyTo(message.replyToSenderName ?? ''),
               style: TextStyle(
-                fontSize: 11,
+                fontSize: 11 * textScale,
                 fontWeight: FontWeight.bold,
                 color: isOwnNode
                     ? Theme.of(context).colorScheme.primary
@@ -599,7 +752,13 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
     return _PoiInfo(lat: lat, lon: lon, label: label);
   }
 
-  Widget _buildPoiMessage(BuildContext context, _PoiInfo poi, bool isOutgoing) {
+  Widget _buildPoiMessage(
+    BuildContext context,
+    _PoiInfo poi,
+    bool isOutgoing,
+    double textScale, {
+    Widget? trailing,
+  }) {
     final colorScheme = Theme.of(context).colorScheme;
     final textColor = isOutgoing
         ? colorScheme.onPrimaryContainer
@@ -635,16 +794,21 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
             children: [
               Text(
                 context.l10n.chat_poiShared,
-                style: TextStyle(color: textColor, fontWeight: FontWeight.w600),
+                style: TextStyle(
+                  color: textColor,
+                  fontWeight: FontWeight.w600,
+                  fontSize: 14 * textScale,
+                ),
               ),
               if (poi.label.isNotEmpty)
                 Text(
                   poi.label,
-                  style: TextStyle(color: metaColor, fontSize: 12),
+                  style: TextStyle(color: metaColor, fontSize: 12 * textScale),
                 ),
             ],
           ),
         ),
+        if (trailing != null) ...[const SizedBox(width: 4), trailing],
       ],
     );
   }
@@ -709,7 +873,7 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
     return colors[hash.abs() % colors.length];
   }
 
-  Widget _buildReplyBanner() {
+  Widget _buildReplyBanner(double textScale) {
     final message = _replyingToMessage!;
     return Container(
       width: double.infinity,
@@ -735,7 +899,7 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
                 Text(
                   context.l10n.chat_replyingTo(message.senderName),
                   style: TextStyle(
-                    fontSize: 12,
+                    fontSize: 12 * textScale,
                     fontWeight: FontWeight.bold,
                     color: Theme.of(context).colorScheme.onSecondaryContainer,
                   ),
@@ -745,7 +909,7 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
                   maxLines: 1,
                   overflow: TextOverflow.ellipsis,
                   style: TextStyle(
-                    fontSize: 11,
+                    fontSize: 11 * textScale,
                     color: Theme.of(
                       context,
                     ).colorScheme.onSecondaryContainer.withValues(alpha: 0.7),
@@ -772,7 +936,15 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
     return Column(
       mainAxisSize: MainAxisSize.min,
       children: [
-        if (_replyingToMessage != null) _buildReplyBanner(),
+        if (_replyingToMessage != null)
+          Builder(
+            builder: (context) {
+              final textScale = context.select<ChatTextScaleService, double>(
+                (service) => service.scale,
+              );
+              return _buildReplyBanner(textScale);
+            },
+          ),
         Container(
           padding: const EdgeInsets.all(8),
           decoration: BoxDecoration(
@@ -798,30 +970,47 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
                   builder: (context, value, child) {
                     final gifId = _parseGifId(value.text);
                     if (gifId != null) {
-                      return Row(
+                      return Focus(
-                        children: [
+                        autofocus: true,
-                          Expanded(
+                        onKeyEvent: (node, event) {
-                            child: ClipRRect(
+                          if (event is KeyDownEvent &&
-                              borderRadius: BorderRadius.circular(12),
+                              (event.logicalKey == LogicalKeyboardKey.enter ||
-                              child: GifMessage(
+                                  event.logicalKey ==
-                                url:
+                                      LogicalKeyboardKey.numpadEnter)) {
-                                    'https://media.giphy.com/media/$gifId/giphy.gif',
+                            _sendMessage();
-                                backgroundColor: Theme.of(
+                            return KeyEventResult.handled;
-                                  context,
+                          }
-                                ).colorScheme.surfaceContainerHighest,
+                          return KeyEventResult.ignored;
-                                fallbackTextColor: Theme.of(
+                        },
-                                  context,
+                        child: Row(
-                                ).colorScheme.onSurface.withValues(alpha: 0.6),
+                          children: [
-                                maxSize: 160,
+                            Expanded(
+                              child: ClipRRect(
+                                borderRadius: BorderRadius.circular(12),
+                                child: GifMessage(
+                                  url:
+                                      'https://media.giphy.com/media/$gifId/giphy.gif',
+                                  backgroundColor: Theme.of(
+                                    context,
+                                  ).colorScheme.surfaceContainerHighest,
+                                  fallbackTextColor: Theme.of(context)
+                                      .colorScheme
+                                      .onSurface
+                                      .withValues(alpha: 0.6),
+                                  maxSize: 160,
+                                ),
                               ),
                             ),
-                          ),
+                            const SizedBox(width: 8),
-                          const SizedBox(width: 8),
+                            IconButton(
-                          IconButton(
+                              icon: const Icon(Icons.close),
-                            icon: const Icon(Icons.close),
+                              onPressed: () {
-                            onPressed: () => _textController.clear(),
+                                _textController.clear();
-                          ),
+                                _textFieldFocusNode.requestFocus();
-                        ],
+                              },
+                            ),
+                          ],
+                        ),
                       );
                     }
 
@@ -884,6 +1073,7 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
     connector.sendChannelMessage(widget.channel, messageText);
     _textController.clear();
     _cancelReply();
+    _textFieldFocusNode.requestFocus();
   }
 
   String _formatTime(DateTime time) {
@@ -901,7 +1091,8 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
     Navigator.push(
       context,
       MaterialPageRoute(
-        builder: (context) => ChannelMessagePathScreen(message: message),
+        builder: (context) =>
+            ChannelMessagePathScreen(message: message, channelMessage: true),
       ),
     );
   }
@@ -1006,6 +1197,157 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
   }
 }
 
+class _SwipeReplyBubble extends StatefulWidget {
+  final double maxSwipeOffset;
+  final double replySwipeThreshold;
+  final VoidCallback onReplyTriggered;
+  final Widget Function({required bool isStart}) hintBuilder;
+  final Widget child;
+
+  const _SwipeReplyBubble({
+    required this.maxSwipeOffset,
+    required this.replySwipeThreshold,
+    required this.onReplyTriggered,
+    required this.hintBuilder,
+    required this.child,
+  });
+
+  @override
+  State<_SwipeReplyBubble> createState() => _SwipeReplyBubbleState();
+}
+
+class _SwipeReplyBubbleState extends State<_SwipeReplyBubble> {
+  Offset? _swipeStartPosition;
+  double _swipeOffset = 0;
+  double _maxSwipeDistance = 0;
+  int? _swipePointerId;
+  bool _swipeLockedToHorizontal = false;
+
+  void _handleSwipeStart(Offset position) {
+    _swipeStartPosition = position;
+    _maxSwipeDistance = 0;
+    if (_swipeOffset != 0) {
+      setState(() => _swipeOffset = 0);
+    }
+  }
+
+  void _handleSwipePointerDown(PointerDownEvent event) {
+    _swipePointerId = event.pointer;
+    _swipeLockedToHorizontal = false;
+    _handleSwipeStart(event.position);
+  }
+
+  void _handleSwipePointerMove(PointerMoveEvent event) {
+    if (_swipePointerId != event.pointer || _swipeStartPosition == null) {
+      return;
+    }
+
+    final dx = event.position.dx - _swipeStartPosition!.dx;
+
+    const axisLockThreshold = 12.0;
+    if (!_swipeLockedToHorizontal) {
+      if (-dx < axisLockThreshold) {
+        return;
+      }
+      _swipeLockedToHorizontal = true;
+    }
+
+    _handleSwipeUpdate(event.position);
+  }
+
+  void _handleSwipeUpdate(Offset position) {
+    if (_swipeStartPosition == null) return;
+
+    final dx = position.dx - _swipeStartPosition!.dx;
+    if (dx >= 0) return;
+
+    if (-dx < 6) return;
+
+    if (-dx > _maxSwipeDistance) {
+      _maxSwipeDistance = -dx;
+    }
+
+    final double clamped = dx.clamp(-widget.maxSwipeOffset, 0.0).toDouble();
+    final adjusted = _applySwipeResistance(clamped, widget.maxSwipeOffset);
+    if (adjusted != _swipeOffset) {
+      setState(() => _swipeOffset = adjusted);
+    }
+  }
+
+  void _handleSwipePointerUp(Offset position) {
+    if (_swipeLockedToHorizontal && _swipeStartPosition != null) {
+      final dx = position.dx - _swipeStartPosition!.dx;
+      final peak = math.max(
+        _maxSwipeDistance,
+        (-dx).clamp(0.0, double.infinity),
+      );
+      if (peak >= widget.replySwipeThreshold) {
+        widget.onReplyTriggered();
+        HapticFeedback.selectionClick();
+      }
+    }
+    _resetSwipe();
+  }
+
+  void _resetSwipe() {
+    if (_swipeOffset != 0) {
+      setState(() => _swipeOffset = 0);
+    }
+    _swipeStartPosition = null;
+    _maxSwipeDistance = 0;
+    _swipePointerId = null;
+    _swipeLockedToHorizontal = false;
+  }
+
+  double _applySwipeResistance(double rawOffset, double maxOffset) {
+    final abs = rawOffset.abs();
+    if (abs <= 0) return 0;
+    final norm = (abs / maxOffset).clamp(0.0, 1.0);
+    const deadZone = 0.18;
+    if (norm <= deadZone) {
+      return rawOffset.sign * maxOffset * (norm * 0.08);
+    }
+    final t = ((norm - deadZone) / (1 - deadZone)).clamp(0.0, 1.0);
+    final curved = t < 0.5
+        ? 16 * math.pow(t, 5)
+        : 1 - math.pow(-2 * t + 2, 5) / 2;
+    const deadZoneEnd = 0.0144;
+    return rawOffset.sign *
+        maxOffset *
+        (deadZoneEnd + curved * (1 - deadZoneEnd));
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Listener(
+      onPointerDown: _handleSwipePointerDown,
+      onPointerMove: _handleSwipePointerMove,
+      onPointerUp: (event) => _handleSwipePointerUp(event.position),
+      onPointerCancel: (_) => _resetSwipe(),
+      child: Padding(
+        padding: const EdgeInsets.symmetric(vertical: 4, horizontal: 8),
+        child: Stack(
+          alignment: Alignment.center,
+          children: [
+            Positioned.fill(
+              child: Opacity(
+                opacity: _swipeOffset.abs() / widget.maxSwipeOffset,
+                child: widget.hintBuilder(isStart: false),
+              ),
+            ),
+            AnimatedContainer(
+              duration: const Duration(milliseconds: 150),
+              transform: Matrix4.translationValues(_swipeOffset, 0, 0),
+              curve: Curves.easeOut,
+              child: widget.child,
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}
+
 class _PoiInfo {
   final double lat;
   final double lon;

lib/screens/channel_message_path_screen.dart

@@ -9,26 +9,38 @@ import 'package:provider/provider.dart';
 
 import '../connector/meshcore_connector.dart';
 import '../services/map_tile_cache_service.dart';
+import '../services/app_settings_service.dart';
 import '../connector/meshcore_protocol.dart';
 import '../l10n/app_localizations.dart';
 import '../l10n/l10n.dart';
 import '../models/channel_message.dart';
+import '../models/app_settings.dart';
 import '../models/contact.dart';
+import '../widgets/adaptive_app_bar_title.dart';
 
 class ChannelMessagePathScreen extends StatelessWidget {
   final ChannelMessage message;
-
+  final bool channelMessage;
-  const ChannelMessagePathScreen({super.key, required this.message});
+  const ChannelMessagePathScreen({
+    super.key,
+    required this.message,
+    this.channelMessage = false,
+  });
 
   @override
   Widget build(BuildContext context) {
     return Consumer<MeshCoreConnector>(
       builder: (context, connector, _) {
         final l10n = context.l10n;
-        final primaryPath = _selectPrimaryPath(
+        final primaryPathTmp = _selectPrimaryPath(
           message.pathBytes,
           message.pathVariants,
         );
+
+        final primaryPath = !channelMessage && !message.isOutgoing
+            ? Uint8List.fromList(primaryPathTmp.reversed.toList())
+            : primaryPathTmp;
+
         final hops = _buildPathHops(primaryPath, connector.contacts, l10n);
         final hasHopDetails = primaryPath.isNotEmpty;
         final observedLabel = _formatObservedHops(
@@ -37,10 +49,9 @@ class ChannelMessagePathScreen extends StatelessWidget {
           l10n,
         );
         final extraPaths = _otherPaths(primaryPath, message.pathVariants);
-
         return Scaffold(
           appBar: AppBar(
-            title: Text(l10n.channelPath_title),
+            title: AdaptiveAppBarTitle(l10n.channelPath_title),
             actions: [
               IconButton(
                 icon: const Icon(Icons.radar_outlined),
@@ -50,9 +61,9 @@ class ChannelMessagePathScreen extends StatelessWidget {
                   MaterialPageRoute(
                     builder: (context) => PathTraceMapScreen(
                       title: context.l10n.contacts_repeaterPathTrace,
-                      path: Uint8List.fromList(primaryPath),
+                      path: primaryPath,
                       flipPathRound: true,
-                      reversePathRound: true,
+                      reversePathRound: !message.isOutgoing && !channelMessage,
                     ),
                   ),
                 ),
@@ -62,7 +73,7 @@ class ChannelMessagePathScreen extends StatelessWidget {
                 tooltip: l10n.channelPath_viewMap,
                 onPressed: hasHopDetails
                     ? () {
-                        _openPathMap(context);
+                        _openPathMap(context, channelMessage: channelMessage);
                       }
                     : null,
               ),
@@ -157,7 +168,11 @@ class ChannelMessagePathScreen extends StatelessWidget {
               ),
               subtitle: Text(_formatPathPrefixes(variants[i])),
               trailing: const Icon(Icons.map_outlined, size: 20),
-              onTap: () => _openPathMap(context, initialPath: variants[i]),
+              onTap: () => _openPathMap(
+                context,
+                initialPath: variants[i],
+                channelMessage: channelMessage,
+              ),
             ),
           ),
       ],
@@ -248,13 +263,18 @@ class ChannelMessagePathScreen extends StatelessWidget {
     );
   }
 
-  void _openPathMap(BuildContext context, {Uint8List? initialPath}) {
+  void _openPathMap(
+    BuildContext context, {
+    Uint8List? initialPath,
+    bool channelMessage = false,
+  }) {
     Navigator.push(
       context,
       MaterialPageRoute(
         builder: (context) => ChannelMessagePathMapScreen(
           message: message,
           initialPath: initialPath,
+          channelMessage: channelMessage,
         ),
       ),
     );
@@ -264,11 +284,13 @@ class ChannelMessagePathScreen extends StatelessWidget {
 class ChannelMessagePathMapScreen extends StatefulWidget {
   final ChannelMessage message;
   final Uint8List? initialPath;
+  final bool channelMessage;
 
   const ChannelMessagePathMapScreen({
     super.key,
     required this.message,
     this.initialPath,
+    this.channelMessage = false,
   });
 
   @override
@@ -278,8 +300,12 @@ class ChannelMessagePathMapScreen extends StatefulWidget {
 
 class _ChannelMessagePathMapScreenState
     extends State<ChannelMessagePathMapScreen> {
+  static const double _labelZoomThreshold = 8.5;
+
   Uint8List? _selectedPath;
   double _pathDistance = 0.0;
+  bool _showNodeLabels = true;
+  bool _didReceivePositionUpdate = false;
 
   @override
   void initState() {
@@ -314,6 +340,8 @@ class _ChannelMessagePathMapScreenState
   Widget build(BuildContext context) {
     return Consumer<MeshCoreConnector>(
       builder: (context, connector, _) {
+        final settings = context.watch<AppSettingsService>().settings;
+        final isImperial = settings.unitSystem == UnitSystem.imperial;
         final tileCache = context.read<MapTileCacheService>();
         final primaryPath = _selectPrimaryPath(
           widget.message.pathBytes,
@@ -323,11 +351,18 @@ class _ChannelMessagePathMapScreenState
           primaryPath,
           widget.message.pathVariants,
         );
-        final selectedPath = _resolveSelectedPath(
+        final selectedPathTmp = _resolveSelectedPath(
           _selectedPath,
           observedPaths,
           primaryPath,
         );
+
+        final selectedPath =
+            ((!widget.message.isOutgoing && !widget.channelMessage) ||
+                (widget.message.isOutgoing && widget.channelMessage))
+            ? Uint8List.fromList(selectedPathTmp.reversed.toList())
+            : selectedPathTmp;
+
         final selectedIndex = _indexForPath(selectedPath, observedPaths);
         final hops = _buildPathHops(
           selectedPath,
@@ -336,12 +371,22 @@ class _ChannelMessagePathMapScreenState
         );
 
         final points = <LatLng>[];
+
+        if ((widget.message.isOutgoing && !widget.channelMessage) ||
+            (widget.message.isOutgoing && widget.channelMessage)) {
+          points.add(LatLng(connector.selfLatitude!, connector.selfLongitude!));
+        }
+
         for (final hop in hops) {
           if (hop.hasLocation) {
             points.add(hop.position!);
           }
         }
-        points.add(LatLng(connector.selfLatitude!, connector.selfLongitude!));
+
+        if ((!widget.message.isOutgoing && !widget.channelMessage) ||
+            (!widget.message.isOutgoing && widget.channelMessage)) {
+          points.add(LatLng(connector.selfLatitude!, connector.selfLongitude!));
+        }
 
         final polylines = points.length > 1
             ? [
@@ -357,6 +402,9 @@ class _ChannelMessagePathMapScreenState
             ? points.first
             : const LatLng(0, 0);
         final initialZoom = points.isNotEmpty ? 13.0 : 2.0;
+        if (!_didReceivePositionUpdate) {
+          _showNodeLabels = initialZoom >= _labelZoomThreshold;
+        }
         final bounds = points.length > 1
             ? LatLngBounds.fromPoints(points)
             : null;
@@ -366,7 +414,9 @@ class _ChannelMessagePathMapScreenState
         _pathDistance = _getPathDistance(points);
 
         return Scaffold(
-          appBar: AppBar(title: Text(context.l10n.channelPath_mapTitle)),
+          appBar: AppBar(
+            title: AdaptiveAppBarTitle(context.l10n.channelPath_mapTitle),
+          ),
           body: SafeArea(
             top: false,
             child: Stack(
@@ -388,6 +438,17 @@ class _ChannelMessagePathMapScreenState
                     interactionOptions: InteractionOptions(
                       flags: ~InteractiveFlag.rotate,
                     ),
+                    onPositionChanged: (camera, hasGesture) {
+                      final shouldShow = camera.zoom >= _labelZoomThreshold;
+                      if (!_didReceivePositionUpdate ||
+                          shouldShow != _showNodeLabels) {
+                        if (!mounted) return;
+                        setState(() {
+                          _didReceivePositionUpdate = true;
+                          _showNodeLabels = shouldShow;
+                        });
+                      }
+                    },
                   ),
                   children: [
                     TileLayer(
@@ -399,7 +460,12 @@ class _ChannelMessagePathMapScreenState
                     ),
                     if (polylines.isNotEmpty)
                       PolylineLayer(polylines: polylines),
-                    MarkerLayer(markers: _buildHopMarkers(hops)),
+                    MarkerLayer(
+                      markers: _buildHopMarkers(
+                        hops,
+                        showLabels: _showNodeLabels,
+                      ),
+                    ),
                   ],
                 ),
                 if (observedPaths.length > 1)
@@ -422,7 +488,7 @@ class _ChannelMessagePathMapScreenState
                       ),
                     ),
                   ),
-                _buildLegendCard(context, hops),
+                _buildLegendCard(context, hops, isImperial),
               ],
             ),
           ),
@@ -494,45 +560,61 @@ class _ChannelMessagePathMapScreenState
     );
   }
 
-  List<Marker> _buildHopMarkers(List<_PathHop> hops) {
+  List<Marker> _buildHopMarkers(
-    return [
+    List<_PathHop> hops, {
-      for (final hop in hops)
+    required bool showLabels,
-        if (hop.hasLocation)
+  }) {
-          Marker(
+    final markers = <Marker>[];
-            point: hop.position!,
+    for (final hop in hops) {
-            width: 35,
+      if (!hop.hasLocation) continue;
-            height: 35,
+      final point = hop.position!;
-            child: Container(
+      markers.add(
-              decoration: BoxDecoration(
+        Marker(
-                color: Colors.green,
+          point: point,
-                shape: BoxShape.circle,
+          width: 35,
-                border: Border.all(color: Colors.white, width: 2),
+          height: 35,
-                boxShadow: [
+          child: Container(
-                  BoxShadow(
+            decoration: BoxDecoration(
-                    color: Colors.black.withValues(alpha: 0.3),
+              color: Colors.green,
-                    blurRadius: 4,
+              shape: BoxShape.circle,
-                    offset: const Offset(0, 2),
+              border: Border.all(color: Colors.white, width: 2),
-                  ),
+              boxShadow: [
-                ],
+                BoxShadow(
-              ),
+                  color: Colors.black.withValues(alpha: 0.3),
-              alignment: Alignment.center,
+                  blurRadius: 4,
-              child: Text(
+                  offset: const Offset(0, 2),
-                hop.index.toString(),
-                style: const TextStyle(
-                  color: Colors.white,
-                  fontWeight: FontWeight.bold,
-                  fontSize: 12,
                 ),
+              ],
+            ),
+            alignment: Alignment.center,
+            child: Text(
+              hop.index.toString(),
+              style: const TextStyle(
+                color: Colors.white,
+                fontWeight: FontWeight.bold,
+                fontSize: 12,
               ),
             ),
           ),
-      if (context.read<MeshCoreConnector>().selfLatitude != null &&
+        ),
-          context.read<MeshCoreConnector>().selfLongitude != null)
+      );
-        Marker(
+      if (showLabels) {
-          point: LatLng(
+        markers.add(
-            context.read<MeshCoreConnector>().selfLatitude!,
+          _buildNodeLabelMarker(
-            context.read<MeshCoreConnector>().selfLongitude!,
+            point: point,
+            label: hop.contact?.name ?? _formatPrefix(hop.prefix),
           ),
+        );
+      }
+    }
+
+    final selfLat = context.read<MeshCoreConnector>().selfLatitude;
+    final selfLon = context.read<MeshCoreConnector>().selfLongitude;
+    if (selfLat != null && selfLon != null) {
+      final selfPoint = LatLng(selfLat, selfLon);
+      markers.add(
+        Marker(
+          point: selfPoint,
           width: 35,
           height: 35,
           child: Container(
@@ -559,10 +641,60 @@ class _ChannelMessagePathMapScreenState
             ),
           ),
         ),
-    ];
+      );
+      if (showLabels) {
+        markers.add(
+          _buildNodeLabelMarker(
+            point: selfPoint,
+            label: context.l10n.pathTrace_you,
+          ),
+        );
+      }
+    }
+
+    return markers;
   }
 
-  Widget _buildLegendCard(BuildContext context, List<_PathHop> hops) {
+  Marker _buildNodeLabelMarker({required LatLng point, required String label}) {
+    return Marker(
+      point: point,
+      width: 120,
+      height: 24,
+      alignment: Alignment.topCenter,
+      child: IgnorePointer(
+        child: Transform.translate(
+          offset: const Offset(0, -20),
+          child: FittedBox(
+            fit: BoxFit.contain,
+            child: Container(
+              padding: const EdgeInsets.symmetric(horizontal: 6, vertical: 2),
+              decoration: BoxDecoration(
+                color: Colors.black54,
+                borderRadius: BorderRadius.circular(8),
+              ),
+              alignment: Alignment.center,
+              child: Text(
+                label,
+                maxLines: 1,
+                overflow: TextOverflow.ellipsis,
+                style: const TextStyle(
+                  color: Colors.white,
+                  fontSize: 11,
+                  fontWeight: FontWeight.w500,
+                ),
+              ),
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+
+  Widget _buildLegendCard(
+    BuildContext context,
+    List<_PathHop> hops,
+    bool isImperial,
+  ) {
     final l10n = context.l10n;
     final maxHeight = MediaQuery.of(context).size.height * 0.35;
     final estimatedHeight = 72.0 + (hops.length * 56.0);
@@ -581,7 +713,7 @@ class _ChannelMessagePathMapScreenState
               Padding(
                 padding: const EdgeInsets.all(12),
                 child: Text(
-                  '${l10n.channelPath_repeaterHops} (${(_pathDistance / 1609.34).toStringAsFixed(2)} Miles / ${(_pathDistance / 1000).toStringAsFixed(2)} Km)',
+                  '${l10n.channelPath_repeaterHops} ${formatDistance(_pathDistance, isImperial: isImperial)}',
                   style: const TextStyle(fontWeight: FontWeight.w600),
                 ),
               ),

lib/screens/channels_screen.dart

@@ -3,18 +3,20 @@ import 'dart:math';
 import 'dart:typed_data';
 
 import 'package:flutter/material.dart';
+import 'package:meshcore_open/storage/channel_message_store.dart';
+import 'package:meshcore_open/widgets/app_bar.dart';
 import 'package:provider/provider.dart';
 import 'package:uuid/uuid.dart';
 
 import '../connector/meshcore_connector.dart';
 import '../l10n/l10n.dart';
+import '../services/app_settings_service.dart';
 import '../models/channel.dart';
 import '../models/community.dart';
 import '../storage/community_store.dart';
 import '../utils/dialog_utils.dart';
 import '../utils/disconnect_navigation_mixin.dart';
 import '../utils/route_transitions.dart';
-import '../widgets/battery_indicator.dart';
 import '../widgets/list_filter_widget.dart';
 import '../widgets/empty_state.dart';
 import '../widgets/qr_code_display.dart';
@@ -104,6 +106,7 @@ class _ChannelsScreenState extends State<ChannelsScreen>
   @override
   Widget build(BuildContext context) {
     final connector = context.watch<MeshCoreConnector>();
+    final channelMessageStore = ChannelMessageStore();
 
     // Auto-navigate back to scanner if disconnected
     if (!checkConnectionAndNavigate(connector)) {
@@ -116,8 +119,7 @@ class _ChannelsScreenState extends State<ChannelsScreen>
       canPop: allowBack,
       child: Scaffold(
         appBar: AppBar(
-          leading: BatteryIndicator(connector: connector),
+          title: AppBarTitle(context.l10n.channels_title),
-          title: Text(context.l10n.channels_title),
           centerTitle: true,
           automaticallyImplyLeading: false,
           actions: [
@@ -304,6 +306,7 @@ class _ChannelsScreenState extends State<ChannelsScreen>
                             return _buildChannelTile(
                               context,
                               connector,
+                              channelMessageStore,
                               channel,
                               showDragHandle: true,
                               dragIndex: index,
@@ -323,6 +326,7 @@ class _ChannelsScreenState extends State<ChannelsScreen>
                             return _buildChannelTile(
                               context,
                               connector,
+                              channelMessageStore,
                               channel,
                             );
                           },
@@ -352,6 +356,7 @@ class _ChannelsScreenState extends State<ChannelsScreen>
   Widget _buildChannelTile(
     BuildContext context,
     MeshCoreConnector connector,
+    ChannelMessageStore channelMessageStore,
     Channel channel, {
     bool showDragHandle = false,
     int? dragIndex,
@@ -468,7 +473,12 @@ class _ChannelsScreenState extends State<ChannelsScreen>
             );
           }
         },
-        onLongPress: () => _showChannelActions(context, connector, channel),
+        onLongPress: () => _showChannelActions(
+          context,
+          connector,
+          channelMessageStore,
+          channel,
+        ),
       ),
     );
   }
@@ -476,11 +486,16 @@ class _ChannelsScreenState extends State<ChannelsScreen>
   void _showChannelActions(
     BuildContext context,
     MeshCoreConnector connector,
+    ChannelMessageStore channelMessageStore,
     Channel channel,
   ) {
+    final parentContext = context;
+    final settingsService = context.read<AppSettingsService>();
+    final isMuted = settingsService.isChannelMuted(channel.name);
+
     showModalBottomSheet(
-      context: context,
+      context: parentContext,
-      builder: (context) => SafeArea(
+      builder: (sheetContext) => SafeArea(
         child: Column(
           mainAxisSize: MainAxisSize.min,
           children: [
@@ -488,10 +503,30 @@ class _ChannelsScreenState extends State<ChannelsScreen>
               leading: const Icon(Icons.edit_outlined),
               title: Text(context.l10n.channels_editChannel),
               onTap: () async {
-                Navigator.pop(context);
+                Navigator.pop(sheetContext);
                 await Future.delayed(const Duration(milliseconds: 100));
-                if (context.mounted) {
+                if (parentContext.mounted) {
-                  _showEditChannelDialog(context, connector, channel);
+                  _showEditChannelDialog(parentContext, connector, channel);
+                }
+              },
+            ),
+            ListTile(
+              leading: Icon(
+                isMuted
+                    ? Icons.notifications_outlined
+                    : Icons.notifications_off_outlined,
+              ),
+              title: Text(
+                isMuted
+                    ? context.l10n.channels_unmuteChannel
+                    : context.l10n.channels_muteChannel,
+              ),
+              onTap: () async {
+                Navigator.pop(sheetContext);
+                if (isMuted) {
+                  await settingsService.unmuteChannel(channel.name);
+                } else {
+                  await settingsService.muteChannel(channel.name);
                 }
               },
             ),
@@ -502,10 +537,15 @@ class _ChannelsScreenState extends State<ChannelsScreen>
                 style: const TextStyle(color: Colors.red),
               ),
               onTap: () async {
-                Navigator.pop(context);
+                Navigator.pop(sheetContext);
                 await Future.delayed(const Duration(milliseconds: 100));
-                if (context.mounted) {
+                if (parentContext.mounted) {
-                  _confirmDeleteChannel(context, connector, channel);
+                  _confirmDeleteChannel(
+                    context,
+                    connector,
+                    channelMessageStore,
+                    channel,
+                  );
                 }
               },
             ),
@@ -1415,7 +1455,7 @@ class _ChannelsScreenState extends State<ChannelsScreen>
               child: Text(dialogContext.l10n.common_cancel),
             ),
             FilledButton(
-              onPressed: () {
+              onPressed: () async {
                 final name = nameController.text.trim();
                 final pskHex = pskController.text.trim();
 
@@ -1432,13 +1472,25 @@ class _ChannelsScreenState extends State<ChannelsScreen>
                 }
 
                 Navigator.pop(dialogContext);
-                connector.setChannel(channel.index, name, psk);
+                try {
-                connector.setChannelSmazEnabled(channel.index, smazEnabled);
+                  await connector.setChannel(channel.index, name, psk);
-                ScaffoldMessenger.of(context).showSnackBar(
+                  await connector.setChannelSmazEnabled(
-                  SnackBar(
+                    channel.index,
-                    content: Text(context.l10n.channels_channelUpdated(name)),
+                    smazEnabled,
-                  ),
+                  );
-                );
+                  if (!context.mounted) return;
+                  ScaffoldMessenger.of(context).showSnackBar(
+                    SnackBar(
+                      content: Text(context.l10n.channels_channelUpdated(name)),
+                    ),
+                  );
+                } catch (e, st) {
+                  debugPrint(st.toString());
+                  if (!context.mounted) return;
+                  ScaffoldMessenger.of(context).showSnackBar(
+                    SnackBar(content: Text('Failed to update channel: $e')),
+                  );
+                }
               },
               child: Text(dialogContext.l10n.common_save),
             ),
@@ -1451,6 +1503,7 @@ class _ChannelsScreenState extends State<ChannelsScreen>
   void _confirmDeleteChannel(
     BuildContext context,
     MeshCoreConnector connector,
+    ChannelMessageStore channelMessageStore,
     Channel channel,
   ) {
     showDialog(
@@ -1466,16 +1519,36 @@ class _ChannelsScreenState extends State<ChannelsScreen>
             child: Text(dialogContext.l10n.common_cancel),
           ),
           TextButton(
-            onPressed: () {
+            onPressed: () async {
               Navigator.pop(dialogContext);
-              connector.deleteChannel(channel.index);
+              try {
-              ScaffoldMessenger.of(context).showSnackBar(
+                await connector.deleteChannel(channel.index);
-                SnackBar(
+
-                  content: Text(
+                channelMessageStore.clearChannelMessages(channel.index);
-                    context.l10n.channels_channelDeleted(channel.name),
+
+                if (!context.mounted) return;
+
+                ScaffoldMessenger.of(context).showSnackBar(
+                  SnackBar(
+                    content: Text(
+                      context.l10n.channels_channelDeleted(channel.name),
+                    ),
                   ),
-                ),
+                );
-              );
+              } catch (e, st) {
+                if (!context.mounted) return;
+
+                ScaffoldMessenger.of(context).showSnackBar(
+                  SnackBar(
+                    content: Text(
+                      context.l10n.channels_channelDeleteFailed(channel.name),
+                    ),
+                  ),
+                );
+
+                // Preserve existing logging (if it was there)
+                debugPrint('Failed to delete channel: $e\n$st');
+              }
             },
             child: Text(
               dialogContext.l10n.common_delete,

lib/screens/chrome_required_screen.dart

@@ -0,0 +1,89 @@
+import 'package:flutter/material.dart';
+import '../l10n/l10n.dart';
+
+class ChromeRequiredScreen extends StatelessWidget {
+  const ChromeRequiredScreen({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    final l10n = context.l10n;
+    final theme = Theme.of(context);
+    final isDark = theme.brightness == Brightness.dark;
+
+    return Scaffold(
+      body: Container(
+        width: double.infinity,
+        padding: const EdgeInsets.symmetric(horizontal: 32),
+        decoration: BoxDecoration(
+          gradient: LinearGradient(
+            begin: Alignment.topLeft,
+            end: Alignment.bottomRight,
+            colors: isDark
+                ? [const Color(0xFF1A1A1A), const Color(0xFF0D0D0D)]
+                : [const Color(0xFFF5F7FA), const Color(0xFFE4E7EB)],
+          ),
+        ),
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            Container(
+              padding: const EdgeInsets.all(24),
+              decoration: BoxDecoration(
+                color: Colors.orange.withValues(alpha: 0.1),
+                shape: BoxShape.circle,
+              ),
+              child: const Icon(
+                Icons.browser_not_supported_rounded,
+                size: 80,
+                color: Colors.orange,
+              ),
+            ),
+            const SizedBox(height: 32),
+            Text(
+              l10n.scanner_chromeRequired,
+              textAlign: TextAlign.center,
+              style: theme.textTheme.headlineMedium?.copyWith(
+                fontWeight: FontWeight.bold,
+                color: isDark ? Colors.white : Colors.black87,
+              ),
+            ),
+            const SizedBox(height: 16),
+            Text(
+              l10n.scanner_chromeRequiredMessage,
+              textAlign: TextAlign.center,
+              style: theme.textTheme.bodyLarge?.copyWith(
+                color: isDark ? Colors.white70 : Colors.black54,
+                height: 1.5,
+              ),
+            ),
+            const SizedBox(height: 48),
+            // We can't really "fix" it for them other than telling them to use Chrome
+            // but we can provide a nice visual.
+            Container(
+              padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 12),
+              decoration: BoxDecoration(
+                color: Colors.blue.withValues(alpha: 0.1),
+                borderRadius: BorderRadius.circular(30),
+                border: Border.all(color: Colors.blue.withValues(alpha: 0.3)),
+              ),
+              child: Row(
+                mainAxisSize: MainAxisSize.min,
+                children: [
+                  const Icon(Icons.info_outline, size: 20, color: Colors.blue),
+                  const SizedBox(width: 12),
+                  Text(
+                    "Web Bluetooth requires a Chromium browser",
+                    style: theme.textTheme.bodyMedium?.copyWith(
+                      color: Colors.blue,
+                      fontWeight: FontWeight.w500,
+                    ),
+                  ),
+                ],
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/screens/community_qr_scanner_screen.dart

@@ -6,6 +6,7 @@ import '../connector/meshcore_connector.dart';
 import '../l10n/l10n.dart';
 import '../models/community.dart';
 import '../storage/community_store.dart';
+import '../widgets/adaptive_app_bar_title.dart';
 import '../widgets/qr_scanner_widget.dart';
 
 /// Screen for scanning community QR codes to join communities.
@@ -29,7 +30,7 @@ class _CommunityQrScannerScreenState extends State<CommunityQrScannerScreen> {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
-        title: Text(context.l10n.community_scanQr),
+        title: AdaptiveAppBarTitle(context.l10n.community_scanQr),
         centerTitle: true,
       ),
       body: _isProcessing

lib/screens/contacts_screen.dart

@@ -3,6 +3,8 @@ import 'dart:async';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:meshcore_open/screens/path_trace_map.dart';
+import 'package:meshcore_open/utils/app_logger.dart';
+import 'package:meshcore_open/widgets/app_bar.dart';
 import 'package:provider/provider.dart';
 
 import '../connector/meshcore_connector.dart';
@@ -16,7 +18,6 @@ import '../utils/dialog_utils.dart';
 import '../utils/disconnect_navigation_mixin.dart';
 import '../utils/emoji_utils.dart';
 import '../utils/route_transitions.dart';
-import '../widgets/battery_indicator.dart';
 import '../widgets/list_filter_widget.dart';
 import '../widgets/empty_state.dart';
 import '../widgets/quick_switch_bar.dart';
@@ -25,6 +26,7 @@ import '../widgets/room_login_dialog.dart';
 import '../widgets/unread_badge.dart';
 import 'channels_screen.dart';
 import 'chat_screen.dart';
+import 'discovery_screen.dart';
 import 'map_screen.dart';
 import 'repeater_hub_screen.dart';
 import 'settings_screen.dart';
@@ -90,79 +92,90 @@ class _ContactsScreenState extends State<ContactsScreen>
     _frameSubscription = connector.receivedFrames.listen((frame) {
       if (frame.isEmpty) return;
       final frameBuffer = BufferReader(frame);
-      final code = frameBuffer.readUInt8();
+      try {
+        final code = frameBuffer.readUInt8();
 
-      if (code == respCodeExportContact) {
+        if (code == respCodeExportContact) {
-        final advertPacket = frameBuffer.readRemainingBytes();
+          final advertPacket = frameBuffer.readRemainingBytes();
-        // Validate packet has expected minimum size (98+ bytes per protocol)
+          // Validate packet has expected minimum size (98+ bytes per protocol)
-        if (advertPacket.length < 98) {
+          if (advertPacket.length < 98) {
-          if (mounted) {
+            if (mounted) {
+              ScaffoldMessenger.of(context).showSnackBar(
+                SnackBar(
+                  content: Text(context.l10n.contacts_invalidAdvertFormat),
+                ),
+              );
+            }
+            _pendingOperations.remove(ContactOperationType.export);
+            return;
+          }
+          final hexString = pubKeyToHex(advertPacket);
+          Clipboard.setData(ClipboardData(text: "meshcore://$hexString"));
+        }
+
+        if (code == respCodeOk) {
+          // Show a snackbar indicating success
+          if (!mounted) return;
+
+          if (_pendingOperations.contains(ContactOperationType.import)) {
+            ScaffoldMessenger.of(context).showSnackBar(
+              SnackBar(content: Text(context.l10n.contacts_contactImported)),
+            );
+          }
+
+          if (_pendingOperations.contains(ContactOperationType.zeroHopShare)) {
             ScaffoldMessenger.of(context).showSnackBar(
               SnackBar(
-                content: Text(context.l10n.contacts_invalidAdvertFormat),
+                content: Text(context.l10n.contacts_zeroHopContactAdvertSent),
               ),
             );
           }
-          _pendingOperations.remove(ContactOperationType.export);
-          return;
-        }
-        final hexString = pubKeyToHex(advertPacket);
-        Clipboard.setData(ClipboardData(text: "meshcore://$hexString"));
-      }
 
-      if (code == respCodeOk) {
+          if (_pendingOperations.contains(ContactOperationType.export)) {
-        // Show a snackbar indicating success
+            ScaffoldMessenger.of(context).showSnackBar(
-        if (!mounted) return;
+              SnackBar(
+                content: Text(context.l10n.contacts_contactAdvertCopied),
+              ),
+            );
+          }
 
-        if (_pendingOperations.contains(ContactOperationType.import)) {
+          _pendingOperations.clear();
-          ScaffoldMessenger.of(context).showSnackBar(
-            SnackBar(content: Text(context.l10n.contacts_contactImported)),
-          );
         }
 
-        if (_pendingOperations.contains(ContactOperationType.zeroHopShare)) {
+        if (code == respCodeErr) {
-          ScaffoldMessenger.of(context).showSnackBar(
+          // Show a snackbar indicating failure
-            SnackBar(
+          if (!mounted) return;
-              content: Text(context.l10n.contacts_zeroHopContactAdvertSent),
+
-            ),
+          if (_pendingOperations.contains(ContactOperationType.import)) {
-          );
+            ScaffoldMessenger.of(context).showSnackBar(
+              SnackBar(
+                content: Text(context.l10n.contacts_contactImportFailed),
+              ),
+            );
+          }
+
+          if (_pendingOperations.contains(ContactOperationType.zeroHopShare)) {
+            ScaffoldMessenger.of(context).showSnackBar(
+              SnackBar(
+                content: Text(context.l10n.contacts_zeroHopContactAdvertFailed),
+              ),
+            );
+          }
+          if (_pendingOperations.contains(ContactOperationType.export)) {
+            ScaffoldMessenger.of(context).showSnackBar(
+              SnackBar(
+                content: Text(context.l10n.contacts_contactAdvertCopyFailed),
+              ),
+            );
+          }
+
+          _pendingOperations.clear();
         }
-
+      } catch (e) {
-        if (_pendingOperations.contains(ContactOperationType.export)) {
+        appLogger.error(
-          ScaffoldMessenger.of(context).showSnackBar(
+          'Error processing received frame: $e',
-            SnackBar(content: Text(context.l10n.contacts_contactAdvertCopied)),
+          tag: 'ContactsScreen',
-          );
+        );
-        }
-
-        _pendingOperations.clear();
-      }
-
-      if (code == respCodeErr) {
-        // Show a snackbar indicating failure
-        if (!mounted) return;
-
-        if (_pendingOperations.contains(ContactOperationType.import)) {
-          ScaffoldMessenger.of(context).showSnackBar(
-            SnackBar(content: Text(context.l10n.contacts_contactImportFailed)),
-          );
-        }
-
-        if (_pendingOperations.contains(ContactOperationType.zeroHopShare)) {
-          ScaffoldMessenger.of(context).showSnackBar(
-            SnackBar(
-              content: Text(context.l10n.contacts_zeroHopContactAdvertFailed),
-            ),
-          );
-        }
-        if (_pendingOperations.contains(ContactOperationType.export)) {
-          ScaffoldMessenger.of(context).showSnackBar(
-            SnackBar(
-              content: Text(context.l10n.contacts_contactAdvertCopyFailed),
-            ),
-          );
-        }
-
-        _pendingOperations.clear();
       }
     });
   }
@@ -171,14 +184,17 @@ class _ContactsScreenState extends State<ContactsScreen>
     final connector = Provider.of<MeshCoreConnector>(context, listen: false);
     final exportContactFrame = buildExportContactFrame(pubKey);
     _pendingOperations.add(ContactOperationType.export);
-    await connector.sendFrame(exportContactFrame);
+    await connector.sendFrame(exportContactFrame, expectsGenericAck: true);
   }
 
   Future<void> _contactZeroHop(Uint8List pubKey) async {
     final connector = Provider.of<MeshCoreConnector>(context, listen: false);
     final exportContactZeroHopFrame = buildZeroHopContact(pubKey);
     _pendingOperations.add(ContactOperationType.zeroHopShare);
-    await connector.sendFrame(exportContactZeroHopFrame);
+    await connector.sendFrame(
+      exportContactZeroHopFrame,
+      expectsGenericAck: true,
+    );
   }
 
   Future<void> _contactImport() async {
@@ -203,9 +219,10 @@ class _ContactsScreenState extends State<ContactsScreen>
     }
     final hexString = text.substring('meshcore://'.length);
     try {
-      final importContactFrame = buildImportContactFrame(hexString);
+      final bytes = hex2Uint8List(hexString);
+      final importContactFrame = buildImportContactFrame(bytes);
       _pendingOperations.add(ContactOperationType.import);
-      await connector.sendFrame(importContactFrame);
+      connector.importContact(importContactFrame);
     } catch (e) {
       if (mounted) {
         ScaffoldMessenger.of(context).showSnackBar(
@@ -229,9 +246,7 @@ class _ContactsScreenState extends State<ContactsScreen>
       canPop: allowBack,
       child: Scaffold(
         appBar: AppBar(
-          leading: BatteryIndicator(connector: connector),
+          title: AppBarTitle(context.l10n.contacts_title),
-          title: Text(context.l10n.contacts_title),
-          centerTitle: true,
           automaticallyImplyLeading: false,
           actions: [
             PopupMenuButton(
@@ -305,6 +320,21 @@ class _ContactsScreenState extends State<ContactsScreen>
                   ),
                   onTap: () => _disconnect(context, connector),
                 ),
+                PopupMenuItem(
+                  child: Row(
+                    children: [
+                      const Icon(Icons.person_add_rounded),
+                      const SizedBox(width: 8),
+                      Text("Discovered Contacts"),
+                    ],
+                  ),
+                  onTap: () => Navigator.push(
+                    context,
+                    MaterialPageRoute(
+                      builder: (context) => const DiscoveryScreen(),
+                    ),
+                  ),
+                ),
                 PopupMenuItem(
                   child: Row(
                     children: [
@@ -371,8 +401,15 @@ class _ContactsScreenState extends State<ContactsScreen>
 
   Widget _buildContactsBody(BuildContext context, MeshCoreConnector connector) {
     final contacts = connector.contacts;
+    final shouldShowStartupSpinner =
+        contacts.isEmpty &&
+        _groups.isEmpty &&
+        connector.isConnected &&
+        (connector.isLoadingContacts ||
+            connector.isLoadingChannels ||
+            connector.selfPublicKey == null);
 
-    if (contacts.isEmpty && connector.isLoadingContacts && _groups.isEmpty) {
+    if (shouldShowStartupSpinner) {
       return const Center(child: CircularProgressIndicator());
     }
 
@@ -389,6 +426,41 @@ class _ContactsScreenState extends State<ContactsScreen>
         ? const <ContactGroup>[]
         : _filterAndSortGroups(_groups, contacts);
 
+    String hintText = "";
+
+    switch (_typeFilter) {
+      case ContactTypeFilter.all:
+        hintText = context.l10n.contacts_searchContacts(
+          filteredAndSorted.length,
+          _showUnreadOnly ? " ${context.l10n.contacts_unread}" : "",
+        );
+        break;
+      case ContactTypeFilter.users:
+        hintText = context.l10n.contacts_searchUsers(
+          filteredAndSorted.length,
+          _showUnreadOnly ? " ${context.l10n.contacts_unread}" : "",
+        );
+        break;
+      case ContactTypeFilter.repeaters:
+        hintText = context.l10n.contacts_searchRepeaters(
+          filteredAndSorted.length,
+          _showUnreadOnly ? " ${context.l10n.contacts_unread}" : "",
+        );
+        break;
+      case ContactTypeFilter.rooms:
+        hintText = context.l10n.contacts_searchRoomServers(
+          filteredAndSorted.length,
+          _showUnreadOnly ? " ${context.l10n.contacts_unread}" : "",
+        );
+        break;
+      case ContactTypeFilter.favorites:
+        hintText = context.l10n.contacts_searchFavorites(
+          filteredAndSorted.length,
+          _showUnreadOnly ? " ${context.l10n.contacts_unread}" : "",
+        );
+        break;
+    }
+
     return Column(
       children: [
         Padding(
@@ -396,7 +468,7 @@ class _ContactsScreenState extends State<ContactsScreen>
           child: TextField(
             controller: _searchController,
             decoration: InputDecoration(
-              hintText: context.l10n.contacts_searchContacts,
+              hintText: hintText,
               prefixIcon: const Icon(Icons.search),
               suffixIcon: Row(
                 mainAxisSize: MainAxisSize.min,
@@ -468,6 +540,7 @@ class _ContactsScreenState extends State<ContactsScreen>
                         contact: contact,
                         lastSeen: _resolveLastSeen(contact),
                         unreadCount: unreadCount,
+                        isFavorite: contact.isFavorite,
                         onTap: () => _openChat(context, contact),
                         onLongPress: () =>
                             _showContactOptions(context, connector, contact),
@@ -504,6 +577,8 @@ class _ContactsScreenState extends State<ContactsScreen>
         })
         .where((group) {
           if (_typeFilter == ContactTypeFilter.all) return true;
+          // Groups don't have a favorite flag, so hide them under favorites filter
+          if (_typeFilter == ContactTypeFilter.favorites) return false;
           for (final key in group.memberKeys) {
             final contact = contactsByKey[key];
             if (contact != null && _matchesTypeFilter(contact)) return true;
@@ -578,6 +653,8 @@ class _ContactsScreenState extends State<ContactsScreen>
     switch (_typeFilter) {
       case ContactTypeFilter.all:
         return true;
+      case ContactTypeFilter.favorites:
+        return contact.isFavorite;
       case ContactTypeFilter.users:
         return contact.type == advTypeChat;
       case ContactTypeFilter.repeaters:
@@ -968,6 +1045,7 @@ class _ContactsScreenState extends State<ContactsScreen>
   ) {
     final isRepeater = contact.type == advTypeRepeater;
     final isRoom = contact.type == advTypeRoom;
+    final isFavorite = contact.isFavorite;
 
     showModalBottomSheet(
       context: context,
@@ -1060,6 +1138,7 @@ class _ContactsScreenState extends State<ContactsScreen>
                             contact.name,
                           ),
                           path: contact.traceRouteBytes ?? Uint8List(0),
+                          targetContact: contact,
                         ),
                       ),
                     );
@@ -1074,6 +1153,21 @@ class _ContactsScreenState extends State<ContactsScreen>
                 },
               ),
             ],
+            ListTile(
+              leading: Icon(
+                isFavorite ? Icons.star : Icons.star_border,
+                color: Colors.amber[700],
+              ),
+              title: Text(
+                isFavorite
+                    ? context.l10n.listFilter_removeFromFavorites
+                    : context.l10n.listFilter_addToFavorites,
+              ),
+              onTap: () async {
+                Navigator.pop(sheetContext);
+                await connector.setContactFavorite(contact, !isFavorite);
+              },
+            ),
             ListTile(
               leading: const Icon(Icons.copy),
               title: Text(context.l10n.contacts_ShareContact),
@@ -1142,6 +1236,7 @@ class _ContactTile extends StatelessWidget {
   final Contact contact;
   final DateTime lastSeen;
   final int unreadCount;
+  final bool isFavorite;
   final VoidCallback onTap;
   final VoidCallback onLongPress;
 
@@ -1149,6 +1244,7 @@ class _ContactTile extends StatelessWidget {
     required this.contact,
     required this.lastSeen,
     required this.unreadCount,
+    required this.isFavorite,
     required this.onTap,
     required this.onLongPress,
   });
@@ -1160,12 +1256,17 @@ class _ContactTile extends StatelessWidget {
         backgroundColor: _getTypeColor(contact.type),
         child: _buildContactAvatar(contact),
       ),
-      title: Text(contact.name),
+      title: Text(contact.name, maxLines: 1, overflow: TextOverflow.ellipsis),
       subtitle: Column(
         crossAxisAlignment: CrossAxisAlignment.start,
         children: [
-          Text(contact.pathLabel),
+          Text(contact.pathLabel, maxLines: 1, overflow: TextOverflow.ellipsis),
-          Text(contact.shortPubKeyHex, style: TextStyle(fontSize: 12)),
+          Text(
+            contact.shortPubKeyHex,
+            maxLines: 1,
+            overflow: TextOverflow.ellipsis,
+            style: const TextStyle(fontSize: 12),
+          ),
         ],
       ),
       // Clamp text scaling in trailing section to prevent overflow while
@@ -1176,26 +1277,36 @@ class _ContactTile extends StatelessWidget {
             MediaQuery.textScalerOf(context).scale(1.0).clamp(1.0, 1.3),
           ),
         ),
-        child: Column(
+        child: SizedBox(
-          mainAxisAlignment: MainAxisAlignment.center,
+          width: 120,
-          crossAxisAlignment: CrossAxisAlignment.end,
+          child: Column(
-          children: [
+            mainAxisAlignment: MainAxisAlignment.center,
-            if (unreadCount > 0) ...[
+            crossAxisAlignment: CrossAxisAlignment.end,
-              UnreadBadge(count: unreadCount),
+            children: [
-              const SizedBox(height: 4),
+              if (unreadCount > 0) ...[
-            ],
+                UnreadBadge(count: unreadCount),
-            Text(
+                const SizedBox(height: 4),
-              _formatLastSeen(context, lastSeen),
-              style: TextStyle(fontSize: 12, color: Colors.grey[600]),
-            ),
-            Row(
-              mainAxisSize: MainAxisSize.min,
-              children: [
-                if (contact.hasLocation)
-                  Icon(Icons.location_on, size: 14, color: Colors.grey[400]),
               ],
-            ),
+              Text(
-          ],
+                _formatLastSeen(context, lastSeen),
+                maxLines: 1,
+                overflow: TextOverflow.ellipsis,
+                textAlign: TextAlign.right,
+                style: TextStyle(fontSize: 12, color: Colors.grey[600]),
+              ),
+              Row(
+                mainAxisSize: MainAxisSize.min,
+                children: [
+                  if (isFavorite)
+                    Icon(Icons.star, size: 14, color: Colors.amber[700]),
+                  if (isFavorite && contact.hasLocation)
+                    const SizedBox(width: 2),
+                  if (contact.hasLocation)
+                    Icon(Icons.location_on, size: 14, color: Colors.grey[400]),
+                ],
+              ),
+            ],
+          ),
         ),
       ),
       onTap: onTap,

lib/screens/discovery_screen.dart

@@ -0,0 +1,419 @@
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:provider/provider.dart';
+
+import '../connector/meshcore_connector.dart';
+import '../connector/meshcore_protocol.dart';
+import '../l10n/l10n.dart';
+import '../models/discovery_contact.dart';
+import '../utils/contact_search.dart';
+import '../widgets/app_bar.dart';
+import '../widgets/list_filter_widget.dart';
+
+enum DiscoverySortOption { lastSeen, name, type }
+
+class DiscoveryScreen extends StatefulWidget {
+  const DiscoveryScreen({super.key});
+
+  @override
+  State<DiscoveryScreen> createState() => _DiscoveryScreenState();
+}
+
+class _DiscoveryScreenState extends State<DiscoveryScreen> {
+  final TextEditingController _searchController = TextEditingController();
+  String searchQuery = '';
+  ContactSortOption sortOption = ContactSortOption.lastSeen;
+  bool showUnreadOnly = false;
+  ContactTypeFilter typeFilter = ContactTypeFilter.all;
+  DiscoverySortOption discoverySortOption = DiscoverySortOption.lastSeen;
+  Timer? _searchDebounce;
+
+  @override
+  void dispose() {
+    _searchController.dispose();
+    _searchDebounce?.cancel();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final l10n = context.l10n;
+    final connector = context.watch<MeshCoreConnector>();
+
+    final discoveredContacts = connector.discoveredContacts;
+    final filteredAndSorted = _filterAndSortContacts(
+      discoveredContacts,
+      connector,
+    );
+
+    return Scaffold(
+      appBar: AppBar(
+        title: AppBarTitle(
+          l10n.discoveredContacts_Title,
+          indicators: false,
+          subtitle: false,
+        ),
+        centerTitle: true,
+        actions: [
+          PopupMenuButton(
+            itemBuilder: (context) => [
+              PopupMenuItem(
+                child: Row(
+                  children: [
+                    const Icon(Icons.delete, color: Colors.red),
+                    const SizedBox(width: 8),
+                    Text(context.l10n.discoveredContacts_deleteContactAll),
+                  ],
+                ),
+                onTap: () {
+                  _deleteContacts(context, connector);
+                },
+              ),
+            ],
+            icon: const Icon(Icons.more_vert),
+          ),
+        ],
+      ),
+      body: Column(
+        children: [
+          _buildFilters(filteredAndSorted, connector),
+          Expanded(
+            child: discoveredContacts.isEmpty
+                ? Center(child: Text(l10n.contacts_noContacts))
+                : filteredAndSorted.isEmpty
+                ? Center(child: Text(l10n.discoveredContacts_noMatching))
+                : ListView.builder(
+                    itemCount: filteredAndSorted.length,
+                    itemBuilder: (context, index) {
+                      final contact = filteredAndSorted[index];
+                      return ListTile(
+                        leading: CircleAvatar(
+                          backgroundColor: _getTypeColor(contact.type),
+                          child: Icon(
+                            _getTypeIcon(contact.type),
+                            color: Colors.white,
+                            size: 20,
+                          ),
+                        ),
+                        title: Text(
+                          contact.name,
+                          maxLines: 1,
+                          overflow: TextOverflow.ellipsis,
+                        ),
+                        subtitle: Text(
+                          contact.shortPubKeyHex,
+                          maxLines: 1,
+                          overflow: TextOverflow.ellipsis,
+                        ),
+                        trailing: Text(
+                          _formatLastSeen(context, contact.lastSeen),
+                          style: TextStyle(
+                            fontSize: 12,
+                            color: Colors.grey[600],
+                          ),
+                        ),
+                        onTap: () {
+                          connector.importDiscoveredContact(contact);
+                        },
+                        onLongPress: () =>
+                            _showContactContextMenu(contact, connector),
+                      );
+                    },
+                  ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Future<void> _showContactContextMenu(
+    DiscoveryContact contact,
+    MeshCoreConnector connector,
+  ) async {
+    final action = await showModalBottomSheet<String>(
+      context: context,
+      showDragHandle: true,
+      builder: (sheetContext) {
+        final l10n = context.l10n;
+        return SafeArea(
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              ListTile(
+                leading: const Icon(Icons.add_reaction_sharp),
+                title: Text(l10n.discoveredContacts_addContact),
+                onTap: () => Navigator.of(sheetContext).pop('import_contact'),
+              ),
+              ListTile(
+                leading: const Icon(Icons.copy),
+                title: Text(l10n.discoveredContacts_copyContact),
+                onTap: () => Navigator.of(sheetContext).pop('copy_contact'),
+              ),
+              ListTile(
+                leading: const Icon(Icons.delete),
+                title: Text(l10n.discoveredContacts_deleteContact),
+                onTap: () => Navigator.of(sheetContext).pop('delete_contact'),
+              ),
+            ],
+          ),
+        );
+      },
+    );
+
+    if (!mounted || action == null) return;
+
+    switch (action) {
+      case 'import_contact':
+        connector.importDiscoveredContact(contact);
+        break;
+      case 'copy_contact':
+        final hexString = pubKeyToHex(contact.rawPacket);
+        Clipboard.setData(ClipboardData(text: "meshcore://$hexString"));
+        if (!mounted) return;
+        ScaffoldMessenger.of(context).showSnackBar(
+          SnackBar(content: Text(context.l10n.contacts_contactAdvertCopied)),
+        );
+        break;
+      case 'delete_contact':
+        connector.removeDiscoveredContact(contact);
+        break;
+    }
+  }
+
+  void _deleteContacts(BuildContext context, MeshCoreConnector connector) {
+    final l10n = context.l10n;
+    showDialog(
+      context: context,
+      builder: (context) => AlertDialog(
+        title: Text(l10n.common_deleteAll),
+        content: Text(l10n.discoveredContacts_deleteContactAllContent),
+        actions: [
+          TextButton(
+            onPressed: () => Navigator.pop(context),
+            child: Text(l10n.common_cancel),
+          ),
+          TextButton(
+            onPressed: () async {
+              Navigator.pop(context);
+              connector.removeAllDiscoveredContacts();
+            },
+            child: Text(l10n.common_deleteAll),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildFilters(
+    List<DiscoveryContact> filteredAndSorted,
+    MeshCoreConnector connector,
+  ) {
+    String hintText = "";
+    switch (typeFilter) {
+      case ContactTypeFilter.all:
+        hintText = context.l10n.contacts_searchContacts(
+          filteredAndSorted.length,
+          showUnreadOnly ? " ${context.l10n.contacts_unread}" : "",
+        );
+        break;
+      case ContactTypeFilter.users:
+        hintText = context.l10n.contacts_searchUsers(
+          filteredAndSorted.length,
+          showUnreadOnly ? " ${context.l10n.contacts_unread}" : "",
+        );
+        break;
+      case ContactTypeFilter.repeaters:
+        hintText = context.l10n.contacts_searchRepeaters(
+          filteredAndSorted.length,
+          showUnreadOnly ? " ${context.l10n.contacts_unread}" : "",
+        );
+        break;
+      case ContactTypeFilter.rooms:
+        hintText = context.l10n.contacts_searchRoomServers(
+          filteredAndSorted.length,
+          showUnreadOnly ? " ${context.l10n.contacts_unread}" : "",
+        );
+        break;
+      case ContactTypeFilter.favorites:
+        hintText = context.l10n.contacts_searchFavorites(
+          filteredAndSorted.length,
+          showUnreadOnly ? " ${context.l10n.contacts_unread}" : "",
+        );
+        break;
+    }
+
+    return Column(
+      children: [
+        Padding(
+          padding: const EdgeInsets.all(8.0),
+          child: TextField(
+            controller: _searchController,
+            decoration: InputDecoration(
+              hintText: hintText,
+              prefixIcon: const Icon(Icons.search),
+              suffixIcon: Row(
+                mainAxisSize: MainAxisSize.min,
+                children: [
+                  if (searchQuery.isNotEmpty)
+                    IconButton(
+                      icon: const Icon(Icons.clear),
+                      onPressed: () {
+                        _searchController.clear();
+                        setState(() {
+                          searchQuery = '';
+                        });
+                      },
+                    ),
+                  _buildFilterButton(context, connector),
+                ],
+              ),
+              border: OutlineInputBorder(
+                borderRadius: BorderRadius.circular(12),
+              ),
+              contentPadding: const EdgeInsets.symmetric(
+                horizontal: 16,
+                vertical: 12,
+              ),
+            ),
+            onChanged: (value) {
+              _searchDebounce?.cancel();
+              _searchDebounce = Timer(const Duration(milliseconds: 300), () {
+                if (!mounted) return;
+                setState(() {
+                  searchQuery = value.toLowerCase();
+                });
+              });
+            },
+          ),
+        ),
+      ],
+    );
+  }
+
+  Widget _buildFilterButton(BuildContext context, MeshCoreConnector connector) {
+    return DiscoveryContactsFilterMenu(
+      sortOption: sortOption,
+      typeFilter: typeFilter,
+      onSortChanged: (value) {
+        setState(() {
+          sortOption = value;
+        });
+      },
+      onTypeFilterChanged: (value) {
+        setState(() {
+          typeFilter = value;
+        });
+      },
+    );
+  }
+
+  List<DiscoveryContact> _filterAndSortContacts(
+    List<DiscoveryContact> contacts,
+    MeshCoreConnector connector,
+  ) {
+    var filtered = contacts.where((contact) {
+      if (searchQuery.isEmpty) return true;
+      return matchesDiscoveryContactQuery(contact, searchQuery);
+    }).toList();
+
+    filtered = filtered.where((contact) {
+      return !connector.knownContactKeys.contains(contact.publicKeyHex);
+    }).toList();
+
+    // Filter out own node from the list
+    if (connector.selfPublicKey != null) {
+      final selfPubKeyHex = pubKeyToHex(connector.selfPublicKey!);
+      filtered = filtered.where((contact) {
+        return contact.publicKeyHex != selfPubKeyHex;
+      }).toList();
+    }
+
+    if (typeFilter != ContactTypeFilter.all) {
+      filtered = filtered.where(_matchesTypeFilter).toList();
+    }
+
+    switch (sortOption) {
+      case ContactSortOption.lastSeen:
+        filtered.sort((a, b) => b.lastSeen.compareTo(a.lastSeen));
+        break;
+      case ContactSortOption.name:
+        filtered.sort(
+          (a, b) => a.name.toLowerCase().compareTo(b.name.toLowerCase()),
+        );
+        break;
+      default:
+        break;
+    }
+
+    return filtered;
+  }
+
+  bool _matchesTypeFilter(DiscoveryContact contact) {
+    switch (typeFilter) {
+      case ContactTypeFilter.all:
+        return true;
+      case ContactTypeFilter.users:
+        return contact.type == advTypeChat;
+      case ContactTypeFilter.repeaters:
+        return contact.type == advTypeRepeater;
+      case ContactTypeFilter.rooms:
+        return contact.type == advTypeRoom;
+      default:
+        return false;
+    }
+  }
+
+  IconData _getTypeIcon(int type) {
+    switch (type) {
+      case advTypeChat:
+        return Icons.chat;
+      case advTypeRepeater:
+        return Icons.cell_tower;
+      case advTypeRoom:
+        return Icons.group;
+      case advTypeSensor:
+        return Icons.sensors;
+      default:
+        return Icons.device_unknown;
+    }
+  }
+
+  Color _getTypeColor(int type) {
+    switch (type) {
+      case advTypeChat:
+        return Colors.blue;
+      case advTypeRepeater:
+        return Colors.orange;
+      case advTypeRoom:
+        return Colors.purple;
+      case advTypeSensor:
+        return Colors.green;
+      default:
+        return Colors.grey;
+    }
+  }
+
+  String _formatLastSeen(BuildContext context, DateTime lastSeen) {
+    final now = DateTime.now();
+    final diff = now.difference(lastSeen);
+
+    if (diff.isNegative || diff.inMinutes < 5) {
+      return context.l10n.contacts_lastSeenNow;
+    }
+    if (diff.inMinutes < 60) {
+      return context.l10n.contacts_lastSeenMinsAgo(diff.inMinutes);
+    }
+    if (diff.inHours < 24) {
+      final hours = diff.inHours;
+      return hours == 1
+          ? context.l10n.contacts_lastSeenHourAgo
+          : context.l10n.contacts_lastSeenHoursAgo(hours);
+    }
+    final days = diff.inDays;
+    return days == 1
+        ? context.l10n.contacts_lastSeenDayAgo
+        : context.l10n.contacts_lastSeenDaysAgo(days);
+  }
+}

lib/screens/map_cache_screen.dart

@@ -7,6 +7,7 @@ import '../l10n/app_localizations.dart';
 import '../l10n/l10n.dart';
 import '../services/app_settings_service.dart';
 import '../services/map_tile_cache_service.dart';
+import '../widgets/adaptive_app_bar_title.dart';
 
 class MapCacheScreen extends StatefulWidget {
   const MapCacheScreen({super.key});
@@ -224,7 +225,10 @@ class _MapCacheScreenState extends State<MapCacheScreen> {
         : (_completedTiles / _estimatedTiles).clamp(0.0, 1.0).toDouble();
 
     return Scaffold(
-      appBar: AppBar(title: Text(l10n.mapCache_title), centerTitle: true),
+      appBar: AppBar(
+        title: AdaptiveAppBarTitle(l10n.mapCache_title),
+        centerTitle: true,
+      ),
       body: Column(
         children: [
           Expanded(

lib/screens/map_screen.dart

@@ -5,20 +5,23 @@ import 'package:flutter/material.dart';
 import 'package:flutter_map/flutter_map.dart';
 import 'package:latlong2/latlong.dart';
 import 'package:meshcore_open/screens/path_trace_map.dart';
+import 'package:meshcore_open/widgets/app_bar.dart';
 import 'package:provider/provider.dart';
 
 import '../connector/meshcore_connector.dart';
 import '../l10n/l10n.dart';
 import '../connector/meshcore_protocol.dart';
+import '../models/app_settings.dart';
 import '../models/channel.dart';
 import '../models/contact.dart';
 import '../services/app_settings_service.dart';
+import '../services/path_history_service.dart';
 import '../services/map_marker_service.dart';
 import '../services/map_tile_cache_service.dart';
 import '../utils/contact_search.dart';
 import '../utils/route_transitions.dart';
-import '../widgets/battery_indicator.dart';
 import '../widgets/quick_switch_bar.dart';
+import '../icons/los_icon.dart';
 import 'channels_screen.dart';
 import 'chat_screen.dart';
 import 'contacts_screen.dart';
@@ -26,6 +29,7 @@ import '../widgets/repeater_login_dialog.dart';
 import '../widgets/room_login_dialog.dart';
 import 'repeater_hub_screen.dart';
 import 'settings_screen.dart';
+import 'line_of_sight_map_screen.dart';
 
 class MapScreen extends StatefulWidget {
   final LatLng? highlightPosition;
@@ -46,6 +50,8 @@ class MapScreen extends StatefulWidget {
 }
 
 class _MapScreenState extends State<MapScreen> {
+  static const double _labelZoomThreshold = 8.5;
+
   final MapController _mapController = MapController();
   final MapMarkerService _markerService = MapMarkerService();
   final Set<String> _hiddenMarkerIds = {};
@@ -58,6 +64,9 @@ class _MapScreenState extends State<MapScreen> {
   final List<LatLng> _points = [];
   final List<Polyline> _polylines = [];
   bool _legendExpanded = false;
+  bool _showNodeLabels = true;
+  List<_GuessedLocation> _cachedGuessedLocations = [];
+  String _guessedLocationsCacheKey = '';
 
   @override
   void initState() {
@@ -105,7 +114,7 @@ class _MapScreenState extends State<MapScreen> {
   double _zoomFromStdDev(double latStdDev, double lonStdDev) {
     final maxSpread = max(latStdDev, lonStdDev);
     if (maxSpread <= 0) return 13.0;
-    // Approzimate: each zoom level halves the visible area
+    // Approximate: each zoom level halves the visible area
     // ~0.01 degrees spread -> zoom 13, ~0.1 -> zoom 10, ~1.0 -> zoom 7
     final zoom = 10.0 - log(maxSpread * 10 + 1) / ln10 * 3;
     return zoom.clamp(4.0, 15.0);
@@ -113,8 +122,8 @@ class _MapScreenState extends State<MapScreen> {
 
   @override
   Widget build(BuildContext context) {
-    return Consumer2<MeshCoreConnector, AppSettingsService>(
+    return Consumer3<MeshCoreConnector, AppSettingsService, PathHistoryService>(
-      builder: (context, connector, settingsService, child) {
+      builder: (context, connector, settingsService, pathHistory, child) {
         final tileCache = context.read<MapTileCacheService>();
         final settings = settingsService.settings;
         final contacts = connector.contacts;
@@ -154,6 +163,40 @@ class _MapScreenState extends State<MapScreen> {
             .where((c) => c.hasLocation)
             .toList();
 
+        // All contacts with a known location — used as anchors regardless of
+        // time/key-prefix filters so that repeaters are always available.
+        final allContactsWithLocation = contacts
+            .where((c) => c.hasLocation)
+            .toList();
+
+        // Compute guessed locations with caching
+        final maxRangeKm = _estimateLoRaRangeKm(connector);
+        final filteredKeys = filteredByKeyPrefix
+            .map((c) => '${c.publicKeyHex}:${c.path.join("-")}')
+            .join(',');
+        final anchorKeys = allContactsWithLocation
+            .map(
+              (c) =>
+                  '${c.publicKeyHex}:${c.latitude}:${c.longitude}:${c.path.isNotEmpty ? c.path.last : ""}',
+            )
+            .join(',');
+        final cacheKey =
+            '$filteredKeys|$anchorKeys|${pathHistory.version}:${connector.currentSf}:${connector.currentBwHz}:${connector.currentTxPower}:${settings.mapShowGuessedLocations}';
+        if (cacheKey != _guessedLocationsCacheKey) {
+          _guessedLocationsCacheKey = cacheKey;
+          _cachedGuessedLocations = settings.mapShowGuessedLocations
+              ? _computeGuessedLocations(
+                  filteredByKeyPrefix,
+                  allContactsWithLocation,
+                  pathHistory,
+                  maxRangeKm,
+                )
+              : [];
+        }
+        final guessedLocations = settings.mapShowGuessedLocations
+            ? _cachedGuessedLocations
+            : <_GuessedLocation>[];
+
         _polylines.clear();
         _polylines.addAll(
           _points.length > 1
@@ -247,6 +290,7 @@ class _MapScreenState extends State<MapScreen> {
         // Re center map after removed markers have loaded
         if (!_hasInitializedMap && _removedMarkersLoaded) {
           _hasInitializedMap = true;
+          _showNodeLabels = initialZoom >= _labelZoomThreshold;
           if (hasMapContent) {
             WidgetsBinding.instance.addPostFrameCallback((_) {
               if (mounted) {
@@ -262,8 +306,7 @@ class _MapScreenState extends State<MapScreen> {
           canPop: allowBack,
           child: Scaffold(
             appBar: AppBar(
-              leading: BatteryIndicator(connector: connector),
+              title: AppBarTitle(context.l10n.map_title),
-              title: Text(context.l10n.map_title),
               centerTitle: true,
               automaticallyImplyLeading: false,
               actions: [
@@ -273,6 +316,47 @@ class _MapScreenState extends State<MapScreen> {
                     onPressed: () => _startPath(),
                     tooltip: context.l10n.contacts_pathTrace,
                   ),
+                if (!_isBuildingPathTrace)
+                  IconButton(
+                    icon: const LosIcon(),
+                    onPressed: () {
+                      final candidates = <LineOfSightEndpoint>[];
+                      if (connector.selfLatitude != null &&
+                          connector.selfLongitude != null) {
+                        candidates.add(
+                          LineOfSightEndpoint(
+                            label: context.l10n.pathTrace_you,
+                            point: LatLng(
+                              connector.selfLatitude!,
+                              connector.selfLongitude!,
+                            ),
+                            color: Colors.teal,
+                            icon: Icons.person_pin_circle,
+                          ),
+                        );
+                      }
+                      for (final c in contactsWithLocation) {
+                        candidates.add(
+                          LineOfSightEndpoint(
+                            label: c.name,
+                            point: LatLng(c.latitude!, c.longitude!),
+                            color: _getNodeColor(c.type),
+                            icon: _getNodeIcon(c.type),
+                          ),
+                        );
+                      }
+                      Navigator.push(
+                        context,
+                        MaterialPageRoute(
+                          builder: (context) => LineOfSightMapScreen(
+                            title: context.l10n.map_losScreenTitle,
+                            candidates: candidates,
+                          ),
+                        ),
+                      );
+                    },
+                    tooltip: context.l10n.map_lineOfSight,
+                  ),
                 PopupMenuButton(
                   itemBuilder: (context) => [
                     PopupMenuItem(
@@ -351,6 +435,14 @@ class _MapScreenState extends State<MapScreen> {
                         position: latLng,
                       );
                     },
+                    onPositionChanged: (camera, hasGesture) {
+                      final shouldShow = camera.zoom >= _labelZoomThreshold;
+                      if (shouldShow != _showNodeLabels && mounted) {
+                        setState(() {
+                          _showNodeLabels = shouldShow;
+                        });
+                      }
+                    },
                   ),
                   children: [
                     TileLayer(
@@ -375,7 +467,13 @@ class _MapScreenState extends State<MapScreen> {
                               size: 34,
                             ),
                           ),
-                        ..._buildMarkers(contactsWithLocation, settings),
+                        if (!_isBuildingPathTrace)
+                          ...guessedLocations.map(_buildGuessedMarker),
+                        ..._buildMarkers(
+                          contactsWithLocation,
+                          settings,
+                          showLabels: _showNodeLabels,
+                        ),
                         ...sharedMarkers.map(_buildSharedMarker),
                         if (connector.selfLatitude != null &&
                             connector.selfLongitude != null)
@@ -384,8 +482,8 @@ class _MapScreenState extends State<MapScreen> {
                               connector.selfLatitude!,
                               connector.selfLongitude!,
                             ),
-                            width: 35,
+                            width: 40,
-                            height: 35,
+                            height: 40,
                             child: Container(
                               padding: const EdgeInsets.all(4),
                               decoration: BoxDecoration(
@@ -404,24 +502,33 @@ class _MapScreenState extends State<MapScreen> {
                                 ],
                               ),
                               alignment: Alignment.center,
-                              child: Text(
+                              child: const Icon(
-                                context.l10n.pathTrace_you,
+                                Icons.person_pin_circle,
-                                style: const TextStyle(
+                                color: Colors.white,
-                                  color: Colors.black,
+                                size: 20,
-                                  fontWeight: FontWeight.bold,
-                                  fontSize: 12,
-                                ),
                               ),
                             ),
                           ),
+                        if (_showNodeLabels &&
+                            connector.selfLatitude != null &&
+                            connector.selfLongitude != null)
+                          _buildNodeLabelMarker(
+                            point: LatLng(
+                              connector.selfLatitude!,
+                              connector.selfLongitude!,
+                            ),
+                            label: context.l10n.pathTrace_you,
+                          ),
                       ],
                     ),
                   ],
                 ),
                 if (!_isBuildingPathTrace)
                   _buildLegend(
-                    contactsWithLocation.length,
+                    contactsWithLocation,
+                    settings,
                     sharedMarkers.length,
+                    guessedLocations.length,
                   ),
                 if (_isBuildingPathTrace) _buildPathTraceOverlay(),
               ],
@@ -445,20 +552,222 @@ class _MapScreenState extends State<MapScreen> {
     );
   }
 
-  List<Marker> _buildMarkers(List<Contact> contacts, settings) {
+  List<_GuessedLocation> _computeGuessedLocations(
+    List<Contact> allContacts,
+    List<Contact> withLocation,
+    PathHistoryService pathHistory,
+    double? maxRangeKm,
+  ) {
+    // Index known-location repeaters by their 1-byte hash.
+    // null value = two repeaters share the same hash byte (ambiguous collision).
+    final repeaterByHash = <int, Contact?>{};
+    for (final c in withLocation) {
+      if (c.type == advTypeRepeater) {
+        if (repeaterByHash.containsKey(c.publicKey[0])) {
+          repeaterByHash[c.publicKey[0]] =
+              null; // collision: can't disambiguate
+        } else {
+          repeaterByHash[c.publicKey[0]] = c;
+        }
+      }
+    }
+
+    final result = <_GuessedLocation>[];
+
+    for (final contact in allContacts) {
+      if (contact.hasLocation) continue;
+
+      final anchorSet = <LatLng>{};
+
+      // Collect the contact-side (last-hop) repeater from every known path.
+      // path = [device-side hop, ..., contact-side hop]
+      // Only path.last is actually within radio range of the contact — using
+      // earlier bytes would anchor against our own side of the network.
+      final pathSets = <List<int>>[
+        contact.path.toList(),
+        ...pathHistory
+            .getRecentPaths(contact.publicKeyHex)
+            .map((r) => r.pathBytes),
+      ];
+      final lastHopBytes = <int>{};
+      for (final pathBytes in pathSets) {
+        if (pathBytes.isEmpty) continue;
+        final lastHop = pathBytes.last;
+        lastHopBytes.add(lastHop);
+        final r = repeaterByHash[lastHop];
+        if (r != null) anchorSet.add(LatLng(r.latitude!, r.longitude!));
+      }
+
+      // Fallback: for any last-hop byte with no GPS repeater, average the
+      // positions of contacts with known GPS that share the same last hop.
+      // Those contacts are all adjacent to the same unknown repeater, so their
+      // centroid is a reasonable proxy for its location.
+      for (final byte in lastHopBytes) {
+        if (repeaterByHash.containsKey(byte)) continue;
+        for (final c in withLocation) {
+          if (c.path.isNotEmpty && c.path.last == byte) {
+            anchorSet.add(LatLng(c.latitude!, c.longitude!));
+          }
+        }
+      }
+
+      // Filter anchors that are geometrically inconsistent with radio range.
+      // Two anchors more than 2 * maxRange apart cannot both be in direct radio
+      // range of the same node, so isolated outliers are removed.
+      final anchors = maxRangeKm != null && anchorSet.length > 1
+          ? _filterConsistentAnchors(anchorSet.toList(), maxRangeKm)
+          : anchorSet.toList();
+
+      if (anchors.isEmpty) continue;
+
+      final LatLng position;
+      if (anchors.length == 1) {
+        // Offset single-anchor guesses so they don't overlap the repeater marker.
+        // Use the contact's public key byte as a deterministic angle seed.
+        const offsetDeg = 0.003; // ~330 m at the equator
+        final angle = (contact.publicKey[1] / 255.0) * 2 * pi;
+        position = LatLng(
+          anchors[0].latitude + offsetDeg * cos(angle),
+          anchors[0].longitude + offsetDeg * sin(angle),
+        );
+      } else {
+        double lat = 0, lon = 0;
+        for (final a in anchors) {
+          lat += a.latitude;
+          lon += a.longitude;
+        }
+        position = LatLng(lat / anchors.length, lon / anchors.length);
+      }
+      result.add(
+        _GuessedLocation(
+          contact: contact,
+          position: position,
+          highConfidence: anchors.length >= 2,
+        ),
+      );
+    }
+
+    return result;
+  }
+
+  /// Estimates the free-space maximum LoRa range in km from the connected
+  /// device's current radio parameters.  Returns null if parameters are unknown.
+  double? _estimateLoRaRangeKm(MeshCoreConnector connector) {
+    final freqHz = connector.currentFreqHz;
+    final bwHz = connector.currentBwHz;
+    final sf = connector.currentSf;
+    final txPower = connector.currentTxPower;
+    if (freqHz == null || bwHz == null || sf == null || txPower == null) {
+      return null;
+    }
+    // LoRa receiver sensitivity = thermal noise + NF + required demod SNR
+    const noiseFigureDb = 6.0;
+    final thermalNoiseDbm = -174.0 + 10 * log(bwHz.toDouble()) / ln10;
+    final sensitivityDbm =
+        thermalNoiseDbm + noiseFigureDb + _sfToRequiredSnrDb(sf);
+    // FSPL at max range equals link budget:
+    //   FSPL = 20*log10(d_m) + 20*log10(f_hz) - 147.55
+    final linkBudgetDb = txPower.toDouble() - sensitivityDbm;
+    final exponent =
+        (linkBudgetDb + 147.55 - 20 * log(freqHz.toDouble()) / ln10) / 20;
+    return pow(10, exponent) / 1000;
+  }
+
+  double _sfToRequiredSnrDb(int sf) {
+    switch (sf) {
+      case 5:
+        return -2.5;
+      case 6:
+        return -5.0;
+      case 7:
+        return -7.5;
+      case 8:
+        return -10.0;
+      case 9:
+        return -12.5;
+      case 10:
+        return -15.0;
+      case 11:
+        return -17.5;
+      case 12:
+        return -20.0;
+      default:
+        return -10.0;
+    }
+  }
+
+  /// Removes anchors that have no neighbour within 2 * maxRangeKm.
+  /// A node cannot be simultaneously in radio range of two points farther apart
+  /// than twice the expected maximum range.
+  List<LatLng> _filterConsistentAnchors(
+    List<LatLng> anchors,
+    double maxRangeKm,
+  ) {
+    const distance = Distance();
+    final maxDistM = maxRangeKm * 2000;
+    return anchors
+        .where((a) => anchors.any((b) => b != a && distance(a, b) <= maxDistM))
+        .toList();
+  }
+
+  Marker _buildGuessedMarker(_GuessedLocation guess) {
+    final color = _getNodeColor(guess.contact.type);
+    return Marker(
+      point: guess.position,
+      width: 35,
+      height: 35,
+      child: GestureDetector(
+        onTap: () => _showNodeInfo(
+          context,
+          guess.contact,
+          guessedPosition: guess.position,
+        ),
+        child: Container(
+          padding: const EdgeInsets.all(4),
+          decoration: BoxDecoration(
+            color: color.withValues(alpha: guess.highConfidence ? 0.55 : 0.30),
+            shape: BoxShape.circle,
+            border: Border.all(color: Colors.white, width: 2),
+            boxShadow: [
+              BoxShadow(
+                color: Colors.black.withValues(alpha: 0.3),
+                blurRadius: 4,
+                offset: const Offset(0, 2),
+              ),
+            ],
+          ),
+          child: const Icon(
+            Icons.not_listed_location,
+            color: Colors.white,
+            size: 20,
+          ),
+        ),
+      ),
+    );
+  }
+
+  List<Marker> _buildMarkers(
+    List<Contact> contacts,
+    settings, {
+    required bool showLabels,
+  }) {
     final markers = <Marker>[];
 
     for (final contact in contacts) {
       if (!contact.hasLocation) continue;
 
       // Apply node type filters
-      if (contact.type == advTypeRepeater && !settings.mapShowRepeaters) {
+      if (contact.type == advTypeRepeater &&
+          (!settings.mapShowRepeaters && !_isBuildingPathTrace)) {
+        continue;
+      }
+      if (contact.type == advTypeChat &&
+          !(settings.mapShowChatNodes && !_isBuildingPathTrace)) {
         continue;
       }
-      if (contact.type == advTypeChat && !settings.mapShowChatNodes) continue;
       if (contact.type != advTypeChat &&
           contact.type != advTypeRepeater &&
-          !settings.mapShowOtherNodes) {
+          (!settings.mapShowOtherNodes && !_isBuildingPathTrace)) {
         continue;
       }
 
@@ -500,11 +809,54 @@ class _MapScreenState extends State<MapScreen> {
       );
 
       markers.add(marker);
+      if (showLabels) {
+        markers.add(
+          _buildNodeLabelMarker(
+            point: LatLng(contact.latitude!, contact.longitude!),
+            label: contact.name,
+          ),
+        );
+      }
     }
 
     return markers;
   }
 
+  Marker _buildNodeLabelMarker({required LatLng point, required String label}) {
+    return Marker(
+      point: point,
+      width: 120,
+      height: 24,
+      alignment: Alignment.topCenter,
+      child: IgnorePointer(
+        child: Transform.translate(
+          offset: const Offset(0, -20),
+          child: FittedBox(
+            fit: BoxFit.contain,
+            child: Container(
+              padding: const EdgeInsets.symmetric(horizontal: 6, vertical: 2),
+              decoration: BoxDecoration(
+                color: Colors.black54,
+                borderRadius: BorderRadius.circular(8),
+              ),
+              alignment: Alignment.center,
+              child: Text(
+                label,
+                maxLines: 1,
+                overflow: TextOverflow.ellipsis,
+                style: const TextStyle(
+                  color: Colors.white,
+                  fontSize: 11,
+                  fontWeight: FontWeight.w500,
+                ),
+              ),
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+
   Color _getNodeColor(int type) {
     switch (type) {
       case advTypeChat:
@@ -535,7 +887,27 @@ class _MapScreenState extends State<MapScreen> {
     }
   }
 
-  Widget _buildLegend(int nodeCount, int markerCount) {
+  Widget _buildLegend(
+    List<Contact> contactsWithLocation,
+    settings,
+    int markerCount,
+    int guessedCount,
+  ) {
+    int nodeCount = 0;
+    for (final contact in contactsWithLocation) {
+      // Apply node type filters
+      if (contact.type == advTypeRepeater && !settings.mapShowRepeaters) {
+        continue;
+      }
+      if (contact.type == advTypeChat && !settings.mapShowChatNodes) continue;
+      if (contact.type != advTypeChat &&
+          contact.type != advTypeRepeater &&
+          !settings.mapShowOtherNodes) {
+        continue;
+      }
+      nodeCount++;
+    }
+
     return Positioned(
       top: 16,
       right: 16,
@@ -559,7 +931,12 @@ class _MapScreenState extends State<MapScreen> {
                       crossAxisAlignment: CrossAxisAlignment.start,
                       children: [
                         Text(
-                          context.l10n.map_nodesCount(nodeCount),
+                          context.l10n.map_nodesCount(
+                            nodeCount +
+                                (settings.mapShowGuessedLocations
+                                    ? guessedCount
+                                    : 0),
+                          ),
                           style: const TextStyle(
                             fontWeight: FontWeight.bold,
                             fontSize: 14,
@@ -627,6 +1004,12 @@ class _MapScreenState extends State<MapScreen> {
                       context.l10n.map_pinPublic,
                       Colors.orange,
                     ),
+                    if (settings.mapShowGuessedLocations && guessedCount > 0)
+                      _buildLegendItem(
+                        Icons.not_listed_location,
+                        context.l10n.map_guessedLocation,
+                        Colors.grey,
+                      ),
                   ],
                 ),
               ),
@@ -815,7 +1198,11 @@ class _MapScreenState extends State<MapScreen> {
     );
   }
 
-  void _showNodeInfo(BuildContext context, Contact contact) {
+  void _showNodeInfo(
+    BuildContext context,
+    Contact contact, {
+    LatLng? guessedPosition,
+  }) {
     showDialog(
       context: context,
       builder: (dialogContext) => AlertDialog(
@@ -826,7 +1213,7 @@ class _MapScreenState extends State<MapScreen> {
               color: _getNodeColor(contact.type),
             ),
             const SizedBox(width: 8),
-            Expanded(child: Text(contact.name)),
+            Expanded(child: SelectableText(contact.name)),
           ],
         ),
         content: Column(
@@ -835,10 +1222,16 @@ class _MapScreenState extends State<MapScreen> {
           children: [
             _buildInfoRow('Type', contact.typeLabel),
             _buildInfoRow('Path', contact.pathLabel),
-            _buildInfoRow(
+            if (contact.hasLocation)
-              'Location',
+              _buildInfoRow(
-              '${contact.latitude!.toStringAsFixed(6)}, ${contact.longitude!.toStringAsFixed(6)}',
+                'Location',
-            ),
+                '${contact.latitude!.toStringAsFixed(6)}, ${contact.longitude!.toStringAsFixed(6)}',
+              )
+            else if (guessedPosition != null)
+              _buildInfoRow(
+                'Est. Location',
+                '~${guessedPosition.latitude.toStringAsFixed(6)}, ${guessedPosition.longitude.toStringAsFixed(6)}',
+              ),
             _buildInfoRow(
               context.l10n.map_lastSeen,
               _formatLastSeen(contact.lastSeen),
@@ -997,7 +1390,7 @@ class _MapScreenState extends State<MapScreen> {
             ),
           ),
           const SizedBox(height: 2),
-          Text(value, style: const TextStyle(fontSize: 14)),
+          SelectableText(value, style: const TextStyle(fontSize: 14)),
         ],
       ),
     );
@@ -1164,7 +1557,8 @@ class _MapScreenState extends State<MapScreen> {
                         padding: const EdgeInsets.fromLTRB(16, 4, 16, 8),
                         child: TextField(
                           decoration: InputDecoration(
-                            hintText: context.l10n.contacts_searchContacts,
+                            hintText:
+                                context.l10n.contacts_searchContactsNoNumber,
                             prefixIcon: const Icon(Icons.search),
                             border: OutlineInputBorder(
                               borderRadius: BorderRadius.circular(12),
@@ -1343,6 +1737,14 @@ class _MapScreenState extends State<MapScreen> {
                     },
                     contentPadding: EdgeInsets.zero,
                   ),
+                  CheckboxListTile(
+                    title: Text(context.l10n.map_showGuessedLocations),
+                    value: settings.mapShowGuessedLocations,
+                    onChanged: (value) {
+                      service.setMapShowGuessedLocations(value ?? true);
+                    },
+                    contentPadding: EdgeInsets.zero,
+                  ),
                   const SizedBox(height: 16),
                   Text(
                     context.l10n.map_keyPrefix,
@@ -1520,6 +1922,9 @@ class _MapScreenState extends State<MapScreen> {
 
   Widget _buildPathTraceOverlay() {
     final l10n = context.l10n;
+    final isImperial =
+        context.read<AppSettingsService>().settings.unitSystem ==
+        UnitSystem.imperial;
     return Positioned(
       top: 16,
       left: 16,
@@ -1540,7 +1945,7 @@ class _MapScreenState extends State<MapScreen> {
               const SizedBox(height: 6),
               if (_pathTrace.isNotEmpty)
                 Text(
-                  "${l10n.path_currentPathLabel} ${formatDistance(getPathDistanceMeters(_points))}",
+                  "${l10n.path_currentPathLabel} ${formatDistance(getPathDistanceMeters(_points), isImperial: isImperial)}",
                   style: TextStyle(fontSize: 12, color: Colors.grey[700]),
                 ),
               SelectableText(
@@ -1550,8 +1955,10 @@ class _MapScreenState extends State<MapScreen> {
                 style: TextStyle(fontSize: 18),
               ),
               const SizedBox(height: 6),
-              Row(
+              Wrap(
-                mainAxisSize: MainAxisSize.min,
+                alignment: WrapAlignment.center,
+                spacing: 8,
+                runSpacing: 8,
                 children: [
                   if (_pathTrace.isNotEmpty)
                     ElevatedButton(
@@ -1601,6 +2008,18 @@ class _MapScreenState extends State<MapScreen> {
   }
 }
 
+class _GuessedLocation {
+  final Contact contact;
+  final LatLng position;
+  final bool highConfidence;
+
+  _GuessedLocation({
+    required this.contact,
+    required this.position,
+    required this.highConfidence,
+  });
+}
+
 class _MarkerPayload {
   final LatLng position;
   final String label;

lib/screens/neighbors_screen.dart

@@ -1,6 +1,7 @@
 import 'dart:async';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
+import 'package:meshcore_open/utils/app_logger.dart';
 import 'package:provider/provider.dart';
 import '../l10n/l10n.dart';
 import '../models/contact.dart';
@@ -11,28 +12,28 @@ import '../services/repeater_command_service.dart';
 import '../widgets/path_management_dialog.dart';
 import '../widgets/snr_indicator.dart';
 
-class NeighboursScreen extends StatefulWidget {
+class NeighborsScreen extends StatefulWidget {
   final Contact repeater;
   final String password;
 
-  const NeighboursScreen({
+  const NeighborsScreen({
     super.key,
     required this.repeater,
     required this.password,
   });
 
   @override
-  State<NeighboursScreen> createState() => _NeighboursScreenState();
+  State<NeighborsScreen> createState() => _NeighborsScreenState();
 }
 
-class _NeighboursScreenState extends State<NeighboursScreen> {
+class _NeighborsScreenState extends State<NeighborsScreen> {
-  static const int _reqNeighboursKeyLen = 4;
+  static const int _reqNeighborsKeyLen = 4;
   static const int _statusPayloadOffset = 8;
   static const int _statusStatsSize = 52;
   static const int _statusResponseBytes =
       _statusPayloadOffset + _statusStatsSize;
   Uint8List _tagData = Uint8List(4);
-  int _neighbourCount = 0;
+  int _neighborCount = 0;
 
   bool _isLoading = false;
   bool _isLoaded = false;
@@ -41,7 +42,7 @@ class _NeighboursScreenState extends State<NeighboursScreen> {
   StreamSubscription<Uint8List>? _frameSubscription;
   RepeaterCommandService? _commandService;
   PathSelection? _pendingStatusSelection;
-  List<Map<String, dynamic>>? _parsedNeighbours;
+  List<Map<String, dynamic>>? _parsedNeighbors;
 
   @override
   void initState() {
@@ -49,7 +50,7 @@ class _NeighboursScreenState extends State<NeighboursScreen> {
     final connector = Provider.of<MeshCoreConnector>(context, listen: false);
     _commandService = RepeaterCommandService(connector);
     _setupMessageListener();
-    _loadNeighbours();
+    _loadNeighbors();
     _hasData = false;
   }
 
@@ -62,13 +63,12 @@ class _NeighboursScreenState extends State<NeighboursScreen> {
 
       if (frame[0] == respCodeSent) {
         _tagData = frame.sublist(2, 6);
-        //_timeEstment = frame.buffer.asByteData().getUint32(6, Endian.little);
       }
 
       // Check if it's a binary response
       if (frame[0] == pushCodeBinaryResponse &&
           listEquals(frame.sublist(2, 6), _tagData)) {
-        _handleNeighboursResponse(connector, frame.sublist(6));
+        _handleNeighborsResponse(connector, frame.sublist(6));
       }
     });
   }
@@ -91,65 +91,77 @@ class _NeighboursScreenState extends State<NeighboursScreen> {
     return '${h}h ${m2}m';
   }
 
-  static List<Map<String, dynamic>> parseNeighboursData(
+  static List<Map<String, dynamic>> parseNeighborsData(
     BufferReader buffer,
     int resultsCount,
   ) {
-    final Map<int, Map<String, dynamic>> neighbours = {};
+    final Map<int, Map<String, dynamic>> neighbors = {};
-    for (var i = 0; i < resultsCount; i++) {
+    try {
-      final neighbourData = neighbours.putIfAbsent(
+      for (var i = 0; i < resultsCount; i++) {
-        i,
+        final neighborData = neighbors.putIfAbsent(
-        () => {
+          i,
-          'contact': null,
+          () => {
-          'publicKey': <Uint8List>{},
+            'contact': null,
-          'lastHeard': <int>{},
+            'publicKey': <Uint8List>{},
-          'snr': <double>{},
+            'lastHeard': <int>{},
-        },
+            'snr': <double>{},
-      );
+          },
-      neighbourData['publicKey'] = buffer.readBytes(_reqNeighboursKeyLen);
+        );
-      neighbourData['lastHeard'] = buffer.readUInt32LE();
+        neighborData['publicKey'] = buffer.readBytes(_reqNeighborsKeyLen);
-      neighbourData['snr'] = buffer.readInt8() / 4.0;
+        neighborData['lastHeard'] = buffer.readUInt32LE();
-    }
+        neighborData['snr'] = buffer.readInt8() / 4.0;
+      }
 
-    return neighbours.values.toList();
+      return neighbors.values.toList();
+    } catch (e) {
+      appLogger.error(
+        'Error parsing neighbors data: $e',
+        tag: 'NeighborsScreen',
+      );
+      return [];
+    }
   }
 
-  void _handleNeighboursResponse(MeshCoreConnector connector, Uint8List frame) {
+  void _handleNeighborsResponse(MeshCoreConnector connector, Uint8List frame) {
     final buffer = BufferReader(frame);
-    final neighbourCount = buffer.readUInt16LE();
+    try {
-    final parsedNeighbours = parseNeighboursData(buffer, buffer.readUInt16LE());
+      final neighborCount = buffer.readUInt16LE();
-    connector.contacts.where((c) => c.type == advTypeRepeater).forEach((
+      final parsedNeighbors = parseNeighborsData(buffer, buffer.readUInt16LE());
-      repeater,
+      connector.contacts.where((c) => c.type == advTypeRepeater).forEach((
-    ) {
+        repeater,
-      for (var neighbourData in parsedNeighbours) {
+      ) {
-        final publicKey = neighbourData['publicKey'];
+        for (var neighborData in parsedNeighbors) {
-        if (listEquals(
+          final publicKey = neighborData['publicKey'];
-          repeater.publicKey.sublist(0, _reqNeighboursKeyLen),
+          if (listEquals(
-          publicKey,
+            repeater.publicKey.sublist(0, _reqNeighborsKeyLen),
-        )) {
+            publicKey,
-          neighbourData['contact'] = repeater;
+          )) {
+            neighborData['contact'] = repeater;
+          }
         }
-      }
+      });
-    });
 
-    setState(() {
+      setState(() {
-      _parsedNeighbours = parsedNeighbours;
+        _parsedNeighbors = parsedNeighbors;
-      _neighbourCount = neighbourCount;
+        _neighborCount = neighborCount;
-    });
+      });
 
-    ScaffoldMessenger.of(context).showSnackBar(
+      ScaffoldMessenger.of(context).showSnackBar(
-      SnackBar(
+        SnackBar(
-        content: Text(context.l10n.neighbors_receivedData),
+          content: Text(context.l10n.neighbors_receivedData),
-        backgroundColor: Colors.green,
+          backgroundColor: Colors.green,
-      ),
+        ),
-    );
+      );
-    _statusTimeout?.cancel();
+      _statusTimeout?.cancel();
-    if (!mounted) return;
+      if (!mounted) return;
-    setState(() {
+      setState(() {
-      _isLoading = false;
+        _isLoading = false;
-      _isLoaded = true;
+        _isLoaded = true;
-      _hasData = true;
+        _hasData = true;
-    });
+      });
+    } catch (e) {
+      appLogger.error('Error handling neighbors response: $e');
+    }
   }
 
   Contact _resolveRepeater(MeshCoreConnector connector) {
@@ -159,7 +171,7 @@ class _NeighboursScreenState extends State<NeighboursScreen> {
     );
   }
 
-  Future<void> _loadNeighbours() async {
+  Future<void> _loadNeighbors() async {
     if (_commandService == null) return;
 
     setState(() {
@@ -172,17 +184,17 @@ class _NeighboursScreenState extends State<NeighboursScreen> {
       final selection = await connector.preparePathForContactSend(repeater);
       _pendingStatusSelection = selection;
 
-      //[version][number of requested neighbours][offset_16bit][order by][len of public key]
+      //[version][number of requested neighbors][offset_16bit][order by][len of public key]
       final frame = buildSendBinaryReq(
         repeater.publicKey,
         payload: Uint8List.fromList([
-          reqTypeGetNeighbours,
+          reqTypeGetNeighbors,
           0x00,
           0x0F,
           0x00,
           0x00,
           0x00,
-          _reqNeighboursKeyLen,
+          _reqNeighborsKeyLen,
         ]),
       );
       await connector.sendFrame(frame);
@@ -258,7 +270,7 @@ class _NeighboursScreenState extends State<NeighboursScreen> {
           mainAxisSize: MainAxisSize.min,
           children: [
             Text(
-              l10n.neighbors_repeatersNeighbours,
+              l10n.neighbors_repeatersNeighbors,
               style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
             ),
             Text(
@@ -345,7 +357,7 @@ class _NeighboursScreenState extends State<NeighboursScreen> {
                     child: CircularProgressIndicator(strokeWidth: 2),
                   )
                 : const Icon(Icons.refresh),
-            onPressed: _isLoading ? null : _loadNeighbours,
+            onPressed: _isLoading ? null : _loadNeighbors,
             tooltip: l10n.repeater_refresh,
           ),
         ],
@@ -353,13 +365,13 @@ class _NeighboursScreenState extends State<NeighboursScreen> {
       body: SafeArea(
         top: false,
         child: RefreshIndicator(
-          onRefresh: _loadNeighbours,
+          onRefresh: _loadNeighbors,
           child: ListView(
             padding: const EdgeInsets.all(16),
             children: [
               if (!_isLoaded &&
                   !_hasData &&
-                  (_parsedNeighbours == null || _parsedNeighbours!.isEmpty))
+                  (_parsedNeighbors == null || _parsedNeighbors!.isEmpty))
                 Center(
                   child: Text(
                     l10n.neighbors_noData,
@@ -368,10 +380,9 @@ class _NeighboursScreenState extends State<NeighboursScreen> {
                 ),
               if (_isLoaded ||
                   _hasData &&
-                      !(_parsedNeighbours == null ||
+                      !(_parsedNeighbors == null || _parsedNeighbors!.isEmpty))
-                          _parsedNeighbours!.isEmpty))
+                _buildNeighborsInfoCard(
-                _buildNeighboursInfoCard(
+                  "${l10n.repeater_neighbors} - $_neighborCount",
-                  "${l10n.repeater_neighbours} - $_neighbourCount",
                 ),
             ],
           ),
@@ -380,7 +391,7 @@ class _NeighboursScreenState extends State<NeighboursScreen> {
     );
   }
 
-  Widget _buildNeighboursInfoCard(String title) {
+  Widget _buildNeighborsInfoCard(String title) {
     final connector = Provider.of<MeshCoreConnector>(context, listen: false);
     return Card(
       child: Padding(
@@ -405,7 +416,7 @@ class _NeighboursScreenState extends State<NeighboursScreen> {
               ],
             ),
             const Divider(),
-            for (final entry in _parsedNeighbours!.asMap().entries)
+            for (final entry in _parsedNeighbors!.asMap().entries)
               _buildInfoRow(
                 entry.value['contact'] != null
                     ? entry.value['contact'].name
@@ -430,6 +441,7 @@ class _NeighboursScreenState extends State<NeighboursScreen> {
     double snr,
     int spreadingFactor,
   ) {
+    final snrUi = snrUiFromSNR(snr, spreadingFactor);
     return Padding(
       padding: const EdgeInsets.symmetric(vertical: 3),
       child: Row(
@@ -443,9 +455,15 @@ class _NeighboursScreenState extends State<NeighboursScreen> {
                 style: const TextStyle(fontWeight: FontWeight.w500),
               ),
               subtitle: Text(value),
-              trailing: SNRIcon(
+              trailing: Column(
-                snr: snr,
+                mainAxisAlignment: MainAxisAlignment.center,
-                snrLevels: getSNRfromSF(spreadingFactor),
+                children: [
+                  Icon(snrUi.icon, color: snrUi.color, size: 18.0),
+                  Text(
+                    snrUi.text,
+                    style: TextStyle(fontSize: 10, color: snrUi.color),
+                  ),
+                ],
               ),
             ),
           ),

lib/screens/path_trace_map.dart

@@ -8,8 +8,11 @@ import 'package:latlong2/latlong.dart';
 import 'package:meshcore_open/connector/meshcore_connector.dart';
 import 'package:meshcore_open/connector/meshcore_protocol.dart';
 import 'package:meshcore_open/l10n/l10n.dart';
+import 'package:meshcore_open/models/app_settings.dart';
 import 'package:meshcore_open/models/contact.dart';
+import 'package:meshcore_open/services/app_settings_service.dart';
 import 'package:meshcore_open/services/map_tile_cache_service.dart';
+import 'package:meshcore_open/utils/app_logger.dart';
 import 'package:meshcore_open/widgets/snr_indicator.dart';
 import 'package:provider/provider.dart';
 
@@ -26,13 +29,16 @@ double getPathDistanceMeters(List<LatLng> points) {
   return distanceMeters;
 }
 
-String formatDistance(double distanceMeters) {
+String formatDistance(double distanceMeters, {required bool isImperial}) {
-  return '(${(distanceMeters / 1609.34).toStringAsFixed(2)} Miles / ${(distanceMeters / 1000).toStringAsFixed(2)} Km)';
+  if (isImperial) {
+    return '(${(distanceMeters / 1609.34).toStringAsFixed(2)} mi)';
+  }
+  return '(${(distanceMeters / 1000).toStringAsFixed(2)} km)';
 }
 
 class PathTraceData {
   final Uint8List pathData;
-  final Uint8List snrData;
+  final List<double> snrData;
   final Map<int, Contact> pathContacts;
 
   PathTraceData({
@@ -45,15 +51,19 @@ class PathTraceData {
 class PathTraceMapScreen extends StatefulWidget {
   final String title;
   final Uint8List path;
+  final int? repeaterId;
   final bool flipPathRound;
   final bool reversePathRound;
+  final Contact? targetContact;
 
   const PathTraceMapScreen({
     super.key,
     required this.title,
     required this.path,
+    this.repeaterId,
     this.flipPathRound = false,
     this.reversePathRound = false,
+    this.targetContact,
   });
 
   @override
@@ -61,6 +71,8 @@ class PathTraceMapScreen extends StatefulWidget {
 }
 
 class _PathTraceMapScreenState extends State<PathTraceMapScreen> {
+  static const double _labelZoomThreshold = 8.5;
+
   StreamSubscription<Uint8List>? _frameSubscription;
   Timer? _timeoutTimer;
 
@@ -68,6 +80,11 @@ class _PathTraceMapScreenState extends State<PathTraceMapScreen> {
   bool _failed2Loaded = false;
   bool _hasData = false;
   PathTraceData? _traceData;
+  // Inferred positions for hops that have no GPS location, keyed by hop byte.
+  Map<int, LatLng> _inferredHopPositions = {};
+  // Endpoint position for the target contact (GPS or guessed).
+  LatLng? _targetContactPosition;
+  bool _targetContactIsGuessed = false;
   List<LatLng> _points = <LatLng>[];
   List<Polyline> _polylines = [];
   LatLng? _initialCenter = LatLng(0, 0);
@@ -75,6 +92,7 @@ class _PathTraceMapScreenState extends State<PathTraceMapScreen> {
   LatLngBounds? _bounds;
   ValueKey<String> _mapKey = const ValueKey('initial');
   double _pathDistanceMeters = 0.0;
+  bool _showNodeLabels = true;
 
   String _formatPathPrefixes(Uint8List pathBytes) {
     return pathBytes
@@ -96,7 +114,7 @@ class _PathTraceMapScreenState extends State<PathTraceMapScreen> {
     super.dispose();
   }
 
-  Uint8List addReturnpath(Uint8List pathBytes) {
+  Uint8List addReturnPath(Uint8List pathBytes) {
     Uint8List? traceBytes;
     final len = (pathBytes.length + pathBytes.length - 1);
     traceBytes = Uint8List(len);
@@ -124,7 +142,7 @@ class _PathTraceMapScreenState extends State<PathTraceMapScreen> {
         : widget.path;
 
     if (widget.flipPathRound) {
-      path = addReturnpath(pathTmp);
+      path = addReturnPath(pathTmp);
     } else {
       path = pathTmp;
     }
@@ -146,42 +164,57 @@ class _PathTraceMapScreenState extends State<PathTraceMapScreen> {
     _frameSubscription = connector.receivedFrames.listen((frame) {
       if (frame.isEmpty) return;
       final frameBuffer = BufferReader(frame);
-      final code = frameBuffer.readUInt8();
+      try {
+        final code = frameBuffer.readUInt8();
 
-      if (code == respCodeSent) {
+        if (code == respCodeSent) {
-        frameBuffer.skipBytes(1); //reserved
+          frameBuffer.skipBytes(1); //reserved
-        tagData = frameBuffer.readBytes(4);
+          tagData = frameBuffer.readBytes(4);
-        final timeoutSeconds = frameBuffer.readUInt32LE();
+          final timeoutMilliseconds = frameBuffer.readUInt32LE();
 
-        // Start timeout timer for trace response
+          // Start timeout timer for trace response
-        _timeoutTimer?.cancel();
+          _timeoutTimer?.cancel();
-        _timeoutTimer = Timer(Duration(milliseconds: timeoutSeconds), () {
+          _timeoutTimer = Timer(
+            Duration(milliseconds: timeoutMilliseconds),
+            () {
+              if (!mounted) return;
+              setState(() {
+                _isLoading = false;
+                _failed2Loaded = true;
+              });
+            },
+          );
+        }
+
+        if (code == respCodeErr) {
+          _timeoutTimer?.cancel();
           if (!mounted) return;
           setState(() {
             _isLoading = false;
             _failed2Loaded = true;
           });
-        });
+        }
-      }
 
-      if (code == respCodeErr) {
+        // Check if it's a binary response
+        if (frame.length > 8 &&
+            code == pushCodeTraceData &&
+            listEquals(frame.sublist(4, 8), tagData)) {
+          _timeoutTimer?.cancel();
+          if (!mounted) return;
+          frameBuffer.skipBytes(3); //reserved + path length + flag
+          if (listEquals(frameBuffer.readBytes(4), tagData)) {
+            _handleTraceResponse(frame);
+          }
+        }
+      } catch (e) {
         _timeoutTimer?.cancel();
         if (!mounted) return;
         setState(() {
           _isLoading = false;
           _failed2Loaded = true;
         });
-      }
+        // Handle any parsing errors gracefully
-      // Check if it's a binary response
+        appLogger.error('Error parsing frame: $e', tag: 'PathTraceMapScreen');
-      if (frame.length > 8 &&
-          code == pushCodeTraceData &&
-          listEquals(frame.sublist(4, 8), tagData)) {
-        _timeoutTimer?.cancel();
-        if (!mounted) return;
-        frameBuffer.skipBytes(3); //reserved + path length + flag
-        if (listEquals(frameBuffer.readBytes(4), tagData)) {
-          _handleTraceResponse(frame);
-        }
       }
     });
   }
@@ -190,69 +223,157 @@ class _PathTraceMapScreenState extends State<PathTraceMapScreen> {
     final connector = Provider.of<MeshCoreConnector>(context, listen: false);
 
     final buffer = BufferReader(frame);
-    buffer.skipBytes(2); // Skip push code and reserved byte
+    try {
-    int pathLength = buffer.readUInt8();
+      buffer.skipBytes(2); // Skip push code and reserved byte
-    buffer.skipBytes(5); // Skip Flag byte and tag data
+      int pathLength = buffer.readUInt8();
-    buffer.skipBytes(4); // Skip auth code
+      buffer.skipBytes(5); // Skip Flag byte and tag data
-    Uint8List pathData = buffer.readBytes(pathLength);
+      buffer.skipBytes(4); // Skip auth code
-    Uint8List snrData = buffer.readRemainingBytes();
+      Uint8List pathData = buffer.readBytes(pathLength);
+      List<double> snrData = buffer
+          .readRemainingBytes()
+          .map((snr) => snr.toSigned(8).toDouble() / 4)
+          .toList();
 
-    Map<int, Contact> pathContacts = {};
+      Map<int, Contact> pathContacts = {};
 
-    connector.contacts.where((c) => c.type != advTypeChat).forEach((repeater) {
+      connector.contacts.where((c) => c.type != advTypeChat).forEach((
-      for (var repeaterData in pathData) {
+        repeater,
-        if (listEquals(
+      ) {
-          repeater.publicKey.sublist(0, 1),
+        for (var repeaterData in pathData) {
-          Uint8List.fromList([repeaterData]),
+          if (listEquals(
-        )) {
+            repeater.publicKey.sublist(0, 1),
-          pathContacts[repeaterData] = repeater;
+            Uint8List.fromList([repeaterData]),
+          )) {
+            pathContacts[repeaterData] = repeater;
+          }
+        }
+      });
+
+      // For hops with no GPS contact, infer position from other contacts
+      // with known GPS that share the same last-hop byte.
+      final Map<int, LatLng> inferredPositions = {};
+      for (final hop in pathData) {
+        final contact = pathContacts[hop];
+        if (contact != null && contact.hasLocation) continue;
+        final peers = connector.contacts
+            .where(
+              (c) => c.hasLocation && c.path.isNotEmpty && c.path.last == hop,
+            )
+            .toList();
+        if (peers.isNotEmpty) {
+          final lat =
+              peers.map((c) => c.latitude!).reduce((a, b) => a + b) /
+              peers.length;
+          final lon =
+              peers.map((c) => c.longitude!).reduce((a, b) => a + b) /
+              peers.length;
+          inferredPositions[hop] = LatLng(lat, lon);
         }
       }
-    });
 
-    setState(() {
+      setState(() {
-      _isLoading = false;
+        _isLoading = false;
-      _hasData = true;
+        _hasData = true;
-      _traceData = PathTraceData(
+        _inferredHopPositions = inferredPositions;
-        pathData: pathData,
+        _traceData = PathTraceData(
-        snrData: snrData,
+          pathData: pathData,
-        pathContacts: pathContacts,
+          snrData: snrData,
-      );
+          pathContacts: pathContacts,
-      _points = <LatLng>[];
+        );
-      _points.add(LatLng(connector.selfLatitude!, connector.selfLongitude!));
+        // Compute endpoint position for the target contact.
-      for (final hop in _traceData!.pathData) {
+        LatLng? targetPos;
-        final contact = _traceData!.pathContacts[hop];
+        bool targetGuessed = false;
-        if (contact != null &&
+        final target = widget.targetContact;
-            contact.hasLocation &&
+        if (target != null) {
-            contact.latitude != null &&
+          if (target.hasLocation) {
-            contact.longitude != null) {
+            targetPos = LatLng(target.latitude!, target.longitude!);
-          _points.add(LatLng(contact.latitude!, contact.longitude!));
+          } else if (pathData.isNotEmpty) {
+            // Infer from the last hop: average GPS contacts sharing that hop.
+            // For a round-trip path (flipPathRound), the target-side hop sits
+            // in the middle of the symmetric sequence; .last is the local side.
+            final lastHop = (widget.flipPathRound && pathData.length > 1)
+                ? pathData[(pathData.length - 1) ~/ 2]
+                : pathData.last;
+            final peers = connector.contacts
+                .where(
+                  (c) =>
+                      c.hasLocation &&
+                      c.path.isNotEmpty &&
+                      c.path.last == lastHop,
+                )
+                .toList();
+            if (peers.isNotEmpty) {
+              final lat =
+                  peers.map((c) => c.latitude!).reduce((a, b) => a + b) /
+                  peers.length;
+              final lon =
+                  peers.map((c) => c.longitude!).reduce((a, b) => a + b) /
+                  peers.length;
+              const offsetDeg = 0.003;
+              final angle = (target.publicKey[1] / 255.0) * 2 * pi;
+              targetPos = LatLng(
+                lat + offsetDeg * cos(angle),
+                lon + offsetDeg * sin(angle),
+              );
+              targetGuessed = true;
+            }
+          }
         }
-      }
+        _targetContactPosition = targetPos;
-      _polylines = _points.length > 1
+        _targetContactIsGuessed = targetGuessed;
-          ? [
-              Polyline(
-                points: _points,
-                strokeWidth: 4,
-                color: Colors.blueAccent,
-              ),
-            ]
-          : <Polyline>[];
 
-      _initialCenter = _points.isNotEmpty ? _points.first : const LatLng(0, 0);
+        _points = <LatLng>[];
-      _initialZoom = _points.isNotEmpty ? 13.0 : 2.0;
+        _points.add(LatLng(connector.selfLatitude!, connector.selfLongitude!));
-      _bounds = _points.length > 1 ? LatLngBounds.fromPoints(_points) : null;
+        for (final hop in _traceData!.pathData) {
-      _mapKey = ValueKey(
+          final contact = _traceData!.pathContacts[hop];
-        '${context.l10n.pathTrace_you},${_formatPathPrefixes(_traceData!.pathData)}',
+          if (contact != null && contact.hasLocation) {
+            _points.add(LatLng(contact.latitude!, contact.longitude!));
+          } else {
+            final inferred = inferredPositions[hop];
+            if (inferred != null) _points.add(inferred);
+          }
+        }
+        if (targetPos != null) _points.add(targetPos);
+        _polylines = _points.length > 1
+            ? [
+                Polyline(
+                  points: _points,
+                  strokeWidth: 4,
+                  color: Colors.blueAccent,
+                ),
+              ]
+            : <Polyline>[];
+
+        _initialCenter = _points.isNotEmpty
+            ? _points.first
+            : const LatLng(0, 0);
+        _initialZoom = _points.isNotEmpty ? 13.0 : 2.0;
+        _bounds = _points.length > 1 ? LatLngBounds.fromPoints(_points) : null;
+        _mapKey = ValueKey(
+          '${context.l10n.pathTrace_you},${_formatPathPrefixes(_traceData!.pathData)}',
+        );
+        _pathDistanceMeters = getPathDistanceMeters(_points);
+      });
+    } catch (e) {
+      appLogger.error(
+        'Error handling trace response: $e',
+        tag: 'PathTraceMapScreen',
       );
-      _pathDistanceMeters = getPathDistanceMeters(_points);
+      if (mounted) {
-    });
+        setState(() {
+          _isLoading = false;
+          _failed2Loaded = true;
+        });
+      }
+    }
   }
 
   @override
   Widget build(BuildContext context) {
     return Consumer<MeshCoreConnector>(
       builder: (context, connector, _) {
+        final settings = context.watch<AppSettingsService>().settings;
+        final isImperial = settings.unitSystem == UnitSystem.imperial;
         final tileCache = context.read<MapTileCacheService>();
 
         return Scaffold(
@@ -317,7 +438,8 @@ class _PathTraceMapScreenState extends State<PathTraceMapScreen> {
                       ),
                     ),
                   ),
-                if (_hasData) _buildLegendCard(context, _traceData!),
+                if (_hasData)
+                  _buildLegendCard(context, _traceData!, isImperial),
               ],
             ),
           ),
@@ -326,55 +448,70 @@ class _PathTraceMapScreenState extends State<PathTraceMapScreen> {
     );
   }
 
-  List<Marker> _buildHopMarkers(List<int> pathData) {
+  List<Marker> _buildHopMarkers(
-    return [
+    List<int> pathData, {
-      for (final hop in pathData)
+    required bool showLabels,
-        if (_traceData!.pathContacts[hop] != null &&
+  }) {
-            _traceData!.pathContacts[hop]!.hasLocation)
+    final markers = <Marker>[];
-          Marker(
+    for (final hop in pathData) {
-            point: LatLng(
+      final contact = _traceData!.pathContacts[hop];
-              _traceData!.pathContacts[hop]!.latitude!,
+      final inferred = _inferredHopPositions[hop];
-              _traceData!.pathContacts[hop]!.longitude!,
+      final hasGps = contact != null && contact.hasLocation;
-            ),
+      if (!hasGps && inferred == null) continue;
-            width: 35,
+      final point = hasGps
-            height: 35,
+          ? LatLng(contact.latitude!, contact.longitude!)
-            child: Container(
+          : inferred!;
-              padding: const EdgeInsets.all(4),
+      final label = hop.toRadixString(16).padLeft(2, '0').toUpperCase();
-              decoration: BoxDecoration(
+      markers.add(
-                color: Colors.green,
-                shape: BoxShape.circle,
-                border: Border.all(color: Colors.white, width: 2),
-                boxShadow: [
-                  BoxShadow(
-                    color: Colors.black.withValues(alpha: 0.3),
-                    blurRadius: 4,
-                    offset: const Offset(0, 2),
-                  ),
-                ],
-              ),
-              alignment: Alignment.center,
-              child: Text(
-                _traceData!.pathContacts[hop]!.publicKey
-                    .sublist(0, 1)
-                    .map(
-                      (b) => b.toRadixString(16).padLeft(2, '0').toUpperCase(),
-                    )
-                    .join(),
-                style: const TextStyle(
-                  color: Colors.white,
-                  fontWeight: FontWeight.bold,
-                  fontSize: 12,
-                ),
-              ),
-            ),
-          ),
-      if (context.read<MeshCoreConnector>().selfLatitude != null &&
-          context.read<MeshCoreConnector>().selfLongitude != null)
         Marker(
-          point: LatLng(
+          point: point,
-            context.read<MeshCoreConnector>().selfLatitude!,
+          width: 35,
-            context.read<MeshCoreConnector>().selfLongitude!,
+          height: 35,
+          child: Container(
+            padding: const EdgeInsets.all(4),
+            decoration: BoxDecoration(
+              color: hasGps
+                  ? Colors.green
+                  : Colors.orange.withValues(alpha: 0.75),
+              shape: BoxShape.circle,
+              border: Border.all(color: Colors.white, width: 2),
+              boxShadow: [
+                BoxShadow(
+                  color: Colors.black.withValues(alpha: 0.3),
+                  blurRadius: 4,
+                  offset: const Offset(0, 2),
+                ),
+              ],
+            ),
+            alignment: Alignment.center,
+            child: Text(
+              hasGps ? label : '~$label',
+              style: const TextStyle(
+                color: Colors.white,
+                fontWeight: FontWeight.bold,
+                fontSize: 12,
+              ),
+            ),
           ),
+        ),
+      );
+      if (showLabels) {
+        markers.add(
+          _buildNodeLabelMarker(
+            point: point,
+            label: contact?.name ?? '~$label',
+          ),
+        );
+      }
+    }
+
+    final selfLat = context.read<MeshCoreConnector>().selfLatitude;
+    final selfLon = context.read<MeshCoreConnector>().selfLongitude;
+    if (selfLat != null && selfLon != null) {
+      final selfPoint = LatLng(selfLat, selfLon);
+      markers.add(
+        Marker(
+          point: selfPoint,
           width: 35,
           height: 35,
           child: Container(
@@ -402,7 +539,94 @@ class _PathTraceMapScreenState extends State<PathTraceMapScreen> {
             ),
           ),
         ),
-    ];
+      );
+      if (showLabels) {
+        markers.add(
+          _buildNodeLabelMarker(
+            point: selfPoint,
+            label: context.l10n.pathTrace_you,
+          ),
+        );
+      }
+    }
+
+    // Add target contact endpoint marker.
+    final targetPos = _targetContactPosition;
+    if (targetPos != null) {
+      final isGuessed = _targetContactIsGuessed;
+      final targetName = widget.targetContact?.name ?? '?';
+      markers.add(
+        Marker(
+          point: targetPos,
+          width: 35,
+          height: 35,
+          child: Container(
+            padding: const EdgeInsets.all(4),
+            decoration: BoxDecoration(
+              color: isGuessed
+                  ? Colors.purple.withValues(alpha: 0.55)
+                  : Colors.red,
+              shape: BoxShape.circle,
+              border: Border.all(color: Colors.white, width: 2),
+              boxShadow: [
+                BoxShadow(
+                  color: Colors.black.withValues(alpha: 0.3),
+                  blurRadius: 4,
+                  offset: const Offset(0, 2),
+                ),
+              ],
+            ),
+            alignment: Alignment.center,
+            child: const Icon(Icons.person, color: Colors.white, size: 18),
+          ),
+        ),
+      );
+      if (showLabels) {
+        markers.add(
+          _buildNodeLabelMarker(
+            point: targetPos,
+            label: isGuessed ? '~$targetName' : targetName,
+          ),
+        );
+      }
+    }
+
+    return markers;
+  }
+
+  Marker _buildNodeLabelMarker({required LatLng point, required String label}) {
+    return Marker(
+      point: point,
+      width: 120,
+      height: 24,
+      alignment: Alignment.topCenter,
+      child: IgnorePointer(
+        child: Transform.translate(
+          offset: const Offset(0, -20),
+          child: FittedBox(
+            fit: BoxFit.contain,
+            child: Container(
+              padding: const EdgeInsets.symmetric(horizontal: 6, vertical: 2),
+              decoration: BoxDecoration(
+                color: Colors.black54,
+                borderRadius: BorderRadius.circular(8),
+              ),
+              alignment: Alignment.center,
+              child: Text(
+                label,
+                maxLines: 1,
+                overflow: TextOverflow.ellipsis,
+                style: const TextStyle(
+                  color: Colors.white,
+                  fontSize: 11,
+                  fontWeight: FontWeight.w500,
+                ),
+              ),
+            ),
+          ),
+        ),
+      ),
+    );
   }
 
   String formatDirectionText(PathTraceData pathTraceData, int index) {
@@ -482,6 +706,14 @@ class _PathTraceMapScreenState extends State<PathTraceMapScreen> {
               ),
         minZoom: 2.0,
         maxZoom: 18.0,
+        onPositionChanged: (camera, hasGesture) {
+          final shouldShow = camera.zoom >= _labelZoomThreshold;
+          if (shouldShow != _showNodeLabels && mounted) {
+            setState(() {
+              _showNodeLabels = shouldShow;
+            });
+          }
+        },
       ),
       children: [
         TileLayer(
@@ -492,12 +724,21 @@ class _PathTraceMapScreenState extends State<PathTraceMapScreen> {
         ),
         if (_polylines.isNotEmpty) PolylineLayer(polylines: _polylines),
         if (_traceData!.pathData.isNotEmpty)
-          MarkerLayer(markers: _buildHopMarkers(_traceData!.pathData)),
+          MarkerLayer(
+            markers: _buildHopMarkers(
+              _traceData!.pathData,
+              showLabels: _showNodeLabels,
+            ),
+          ),
       ],
     );
   }
 
-  Widget _buildLegendCard(BuildContext context, PathTraceData pathTraceData) {
+  Widget _buildLegendCard(
+    BuildContext context,
+    PathTraceData pathTraceData,
+    bool isImperial,
+  ) {
     final l10n = context.l10n;
     final maxHeight = MediaQuery.of(context).size.height * 0.35;
     final estimatedHeight = 72.0 + (pathTraceData.pathData.length * 56.0);
@@ -516,7 +757,7 @@ class _PathTraceMapScreenState extends State<PathTraceMapScreen> {
               Padding(
                 padding: const EdgeInsets.all(12),
                 child: Text(
-                  '${l10n.channelPath_repeaterHops} ${formatDistance(_pathDistanceMeters)}',
+                  '${l10n.channelPath_repeaterHops} ${formatDistance(_pathDistanceMeters, isImperial: isImperial)}',
                   style: const TextStyle(fontWeight: FontWeight.w600),
                 ),
               ),
@@ -532,6 +773,12 @@ class _PathTraceMapScreenState extends State<PathTraceMapScreen> {
                           itemCount: pathTraceData.pathData.length + 1,
                           separatorBuilder: (_, _) => const Divider(height: 1),
                           itemBuilder: (context, index) {
+                            final snrUi = snrUiFromSNR(
+                              index < pathTraceData.snrData.length
+                                  ? pathTraceData.snrData[index]
+                                  : null,
+                              context.read<MeshCoreConnector>().currentSf,
+                            );
                             return Column(
                               children: [
                                 ListTile(
@@ -550,12 +797,22 @@ class _PathTraceMapScreenState extends State<PathTraceMapScreen> {
                                     ),
                                     style: const TextStyle(fontSize: 14),
                                   ),
-                                  trailing: SNRIcon(
+                                  trailing: Column(
-                                    snr:
+                                    mainAxisAlignment: MainAxisAlignment.center,
-                                        pathTraceData.snrData[index].toSigned(
+                                    children: [
-                                          8,
+                                      Icon(
-                                        ) /
+                                        snrUi.icon,
-                                        4.0,
+                                        color: snrUi.color,
+                                        size: 18.0,
+                                      ),
+                                      Text(
+                                        snrUi.text,
+                                        style: TextStyle(
+                                          fontSize: 10,
+                                          color: snrUi.color,
+                                        ),
+                                      ),
+                                    ],
                                   ),
                                   onTap: () {
                                     // Handle item tap

lib/screens/repeater_cli_screen.dart

@@ -168,6 +168,7 @@ class _RepeaterCliScreenState extends State<RepeaterCliScreen> {
 
     _commandController.clear();
     _historyIndex = -1;
+    _commandFocusNode.requestFocus();
 
     // Auto-scroll to bottom
     Future.delayed(const Duration(milliseconds: 100), () {

lib/screens/repeater_hub_screen.dart

@@ -1,12 +1,14 @@
 import 'package:flutter/material.dart';
 import 'package:meshcore_open/connector/meshcore_protocol.dart';
+import 'package:provider/provider.dart';
 import '../l10n/l10n.dart';
 import '../models/contact.dart';
+import '../services/app_settings_service.dart';
 import 'repeater_status_screen.dart';
 import 'repeater_cli_screen.dart';
 import 'repeater_settings_screen.dart';
 import 'telemetry_screen.dart';
-import 'neighbours_screen.dart';
+import 'neighbors_screen.dart';
 
 class RepeaterHubScreen extends StatelessWidget {
   final Contact repeater;
@@ -21,6 +23,10 @@ class RepeaterHubScreen extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     final l10n = context.l10n;
+    final settingsService = context.watch<AppSettingsService>();
+    final chemistry = settingsService.batteryChemistryForRepeater(
+      repeater.publicKeyHex,
+    );
     return Scaffold(
       appBar: AppBar(
         title: Column(
@@ -107,6 +113,62 @@ class RepeaterHubScreen extends StatelessWidget {
               ),
             ),
             const SizedBox(height: 24),
+            Card(
+              child: Padding(
+                padding: const EdgeInsets.fromLTRB(16, 16, 16, 12),
+                child: Column(
+                  crossAxisAlignment: CrossAxisAlignment.start,
+                  children: [
+                    Row(
+                      children: [
+                        const Icon(Icons.battery_full),
+                        const SizedBox(width: 10),
+                        Expanded(
+                          child: Text(
+                            l10n.appSettings_batteryChemistry,
+                            style: const TextStyle(
+                              fontSize: 16,
+                              fontWeight: FontWeight.w600,
+                            ),
+                          ),
+                        ),
+                      ],
+                    ),
+                    const SizedBox(height: 12),
+                    DropdownButtonFormField<String>(
+                      initialValue: chemistry,
+                      isExpanded: true,
+                      decoration: const InputDecoration(
+                        border: UnderlineInputBorder(),
+                        isDense: true,
+                      ),
+                      onChanged: (value) {
+                        if (value == null) return;
+                        settingsService.setBatteryChemistryForRepeater(
+                          repeater.publicKeyHex,
+                          value,
+                        );
+                      },
+                      items: [
+                        DropdownMenuItem(
+                          value: 'nmc',
+                          child: Text(l10n.appSettings_batteryNmc),
+                        ),
+                        DropdownMenuItem(
+                          value: 'lifepo4',
+                          child: Text(l10n.appSettings_batteryLifepo4),
+                        ),
+                        DropdownMenuItem(
+                          value: 'lipo',
+                          child: Text(l10n.appSettings_batteryLipo),
+                        ),
+                      ],
+                    ),
+                  ],
+                ),
+              ),
+            ),
+            const SizedBox(height: 24),
             Text(
               l10n.repeater_managementTools,
               style: const TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
@@ -174,17 +236,15 @@ class RepeaterHubScreen extends StatelessWidget {
             _buildManagementCard(
               context,
               icon: Icons.group,
-              title: l10n.repeater_neighbours,
+              title: l10n.repeater_neighbors,
-              subtitle: l10n.repeater_neighboursSubtitle,
+              subtitle: l10n.repeater_neighborsSubtitle,
               color: Colors.orange,
               onTap: () {
                 Navigator.push(
                   context,
                   MaterialPageRoute(
-                    builder: (context) => NeighboursScreen(
+                    builder: (context) =>
-                      repeater: repeater,
+                        NeighborsScreen(repeater: repeater, password: password),
-                      password: password,
-                    ),
                   ),
                 );
               },

lib/screens/repeater_status_screen.dart

@@ -8,7 +8,9 @@ import '../models/contact.dart';
 import '../models/path_selection.dart';
 import '../connector/meshcore_connector.dart';
 import '../connector/meshcore_protocol.dart';
+import '../services/app_settings_service.dart';
 import '../services/repeater_command_service.dart';
+import '../utils/battery_utils.dart';
 import '../widgets/path_management_dialog.dart';
 
 class RepeaterStatusScreen extends StatefulWidget {
@@ -179,6 +181,12 @@ class _RepeaterStatusScreenState extends State<RepeaterStatusScreen> {
       _dupDirect = directDups;
       _dupFlood = floodDups;
     });
+    final connector = Provider.of<MeshCoreConnector>(context, listen: false);
+    connector.updateRepeaterBatterySnapshot(
+      widget.repeater.publicKeyHex,
+      batteryMv,
+      source: 'status_binary',
+    );
     _recordStatusResult(true);
   }
 
@@ -201,6 +209,18 @@ class _RepeaterStatusScreenState extends State<RepeaterStatusScreen> {
           _uptimeSecs = _asInt(data['uptime_secs']);
           _queueLen = _asInt(data['queue_len']);
           _debugFlags = _asInt(data['errors']);
+          final batteryMv = _batteryMv;
+          if (batteryMv != null) {
+            final connector = Provider.of<MeshCoreConnector>(
+              context,
+              listen: false,
+            );
+            connector.updateRepeaterBatterySnapshot(
+              widget.repeater.publicKeyHex,
+              batteryMv,
+              source: 'status_text',
+            );
+          }
         } else if (data.containsKey('noise_floor')) {
           _noiseFloor = _asInt(data['noise_floor']);
           _lastRssi = _asInt(data['last_rssi']);
@@ -590,18 +610,24 @@ class _RepeaterStatusScreenState extends State<RepeaterStatusScreen> {
   }
 
   String _batteryText() {
-    if (_batteryMv == null) return '—';
+    final connector = context.watch<MeshCoreConnector>();
-    final percent = _batteryPercentFromMv(_batteryMv!);
+    final batteryMv =
-    final volts = (_batteryMv! / 1000.0).toStringAsFixed(2);
+        connector.getRepeaterBatteryMillivolts(widget.repeater.publicKeyHex) ??
+        _batteryMv;
+    if (batteryMv == null) return '—';
+    final percent = estimateBatteryPercentFromMillivolts(
+      batteryMv,
+      _batteryChemistry(),
+    );
+    final volts = (batteryMv / 1000.0).toStringAsFixed(2);
     return '$percent% / ${volts}V';
   }
 
-  int _batteryPercentFromMv(int millivolts) {
+  String _batteryChemistry() {
-    const minMv = 3000;
+    final settingsService = context.read<AppSettingsService>();
-    const maxMv = 4200;
+    return settingsService.batteryChemistryForRepeater(
-    if (millivolts <= minMv) return 0;
+      widget.repeater.publicKeyHex,
-    if (millivolts >= maxMv) return 100;
+    );
-    return (((millivolts - minMv) * 100) / (maxMv - minMv)).round();
   }
 
   String _clockText() {

lib/screens/scanner_screen.dart

@@ -1,14 +1,16 @@
 import 'dart:async';
-import 'dart:io' show Platform;
-
 import 'package:flutter/material.dart';
+import '../utils/platform_info.dart';
 import 'package:flutter_blue_plus/flutter_blue_plus.dart';
 import 'package:provider/provider.dart';
 
 import '../connector/meshcore_connector.dart';
 import '../l10n/l10n.dart';
+import '../utils/app_logger.dart';
+import '../widgets/adaptive_app_bar_title.dart';
 import '../widgets/device_tile.dart';
 import 'contacts_screen.dart';
+import 'usb_screen.dart';
 
 /// Screen for scanning and connecting to MeshCore devices
 class ScannerScreen extends StatefulWidget {
@@ -20,6 +22,7 @@ class ScannerScreen extends StatefulWidget {
 
 class _ScannerScreenState extends State<ScannerScreen> {
   bool _changedNavigation = false;
+  late final MeshCoreConnector _connector;
   late final VoidCallback _connectionListener;
   BluetoothAdapterState _bluetoothState = BluetoothAdapterState.unknown;
   late StreamSubscription<BluetoothAdapterState> _bluetoothStateSubscription;
@@ -27,12 +30,15 @@ class _ScannerScreenState extends State<ScannerScreen> {
   @override
   void initState() {
     super.initState();
-    final connector = Provider.of<MeshCoreConnector>(context, listen: false);
+    _connector = Provider.of<MeshCoreConnector>(context, listen: false);
 
     _connectionListener = () {
-      if (connector.state == MeshCoreConnectionState.disconnected) {
+      final isCurrentRoute = ModalRoute.of(context)?.isCurrent ?? true;
+      if (_connector.state == MeshCoreConnectionState.disconnected) {
         _changedNavigation = false;
-      } else if (connector.state == MeshCoreConnectionState.connected &&
+      } else if (_connector.state == MeshCoreConnectionState.connected &&
+          _connector.activeTransport == MeshCoreTransportType.bluetooth &&
+          isCurrentRoute &&
           !_changedNavigation) {
         _changedNavigation = true;
         if (mounted) {
@@ -43,34 +49,53 @@ class _ScannerScreenState extends State<ScannerScreen> {
       }
     };
 
-    connector.addListener(_connectionListener);
+    _connector.addListener(_connectionListener);
 
-    _bluetoothStateSubscription = FlutterBluePlus.adapterState.listen((state) {
+    _bluetoothStateSubscription = FlutterBluePlus.adapterState.listen(
-      if (mounted) {
+      (state) {
-        setState(() {
+        if (mounted) {
-          _bluetoothState = state;
+          setState(() {
-        });
+            _bluetoothState = state;
-        // Cancel scan if Bluetooth turns off while scanning
+          });
-        if (state != BluetoothAdapterState.on) {
+          // Cancel scan if Bluetooth turns off while scanning
-          unawaited(connector.stopScan());
+          if (state != BluetoothAdapterState.on) {
+            unawaited(_connector.stopScan());
+          }
         }
-      }
+      },
-    });
+      onError: (Object e) {
+        appLogger.warn('Adapter state stream error: $e', tag: 'ScannerScreen');
+      },
+    );
   }
 
   @override
   void dispose() {
-    final connector = Provider.of<MeshCoreConnector>(context, listen: false);
+    _connector.removeListener(_connectionListener);
-    connector.removeListener(_connectionListener);
     unawaited(_bluetoothStateSubscription.cancel());
+    if (!_changedNavigation) {
+      WidgetsBinding.instance.addPostFrameCallback((_) {
+        unawaited(_connector.disconnect(manual: true));
+      });
+    }
     super.dispose();
   }
 
   @override
   Widget build(BuildContext context) {
+    final canPop = Navigator.of(context).canPop();
     return Scaffold(
       appBar: AppBar(
-        title: Text(context.l10n.scanner_title),
+        leading: canPop
+            ? IconButton(
+                icon: const Icon(Icons.arrow_back),
+                onPressed: () {
+                  appLogger.info('Back button pressed', tag: 'ScannerScreen');
+                  Navigator.of(context).maybePop();
+                },
+              )
+            : null,
+        title: AdaptiveAppBarTitle(context.l10n.scanner_title),
         centerTitle: true,
         automaticallyImplyLeading: false,
       ),
@@ -94,36 +119,67 @@ class _ScannerScreenState extends State<ScannerScreen> {
           },
         ),
       ),
-      floatingActionButton: Consumer<MeshCoreConnector>(
+      bottomNavigationBar: Consumer<MeshCoreConnector>(
         builder: (context, connector, child) {
           final isScanning =
               connector.state == MeshCoreConnectionState.scanning;
           final isBluetoothOff = _bluetoothState == BluetoothAdapterState.off;
+          final usbSupported = PlatformInfo.supportsUsbSerial;
 
-          return FloatingActionButton.extended(
+          return SafeArea(
-            onPressed: isBluetoothOff
+            top: false,
-                ? null
+            minimum: const EdgeInsets.fromLTRB(16, 8, 16, 16),
-                : () {
+            child: Row(
-                    if (isScanning) {
+              mainAxisAlignment: MainAxisAlignment.end,
-                      connector.stopScan();
+              children: [
-                    } else {
+                if (usbSupported)
-                      connector.startScan();
+                  FloatingActionButton.extended(
-                    }
+                    onPressed: () {
-                  },
+                      appLogger.info(
-            icon: isScanning
+                        'USB selected, opening UsbScreen',
-                ? const SizedBox(
+                        tag: 'ScannerScreen',
-                    width: 20,
+                      );
-                    height: 20,
+                      Navigator.of(context).push(
-                    child: CircularProgressIndicator(
+                        MaterialPageRoute(builder: (_) => const UsbScreen()),
-                      strokeWidth: 2,
+                      );
-                      color: Colors.white,
+                    },
-                    ),
+                    heroTag: 'scanner_usb_action',
-                  )
+                    icon: const Icon(Icons.usb),
-                : const Icon(Icons.bluetooth_searching),
+                    label: Text(context.l10n.connectionChoiceUsbLabel),
-            label: Text(
+                  ),
-              isScanning
+                if (usbSupported) const SizedBox(width: 12),
-                  ? context.l10n.scanner_stop
+                FloatingActionButton.extended(
-                  : context.l10n.scanner_scan,
+                  heroTag: 'scanner_ble_action',
+                  onPressed: isBluetoothOff
+                      ? null
+                      : () {
+                          if (isScanning) {
+                            connector.stopScan();
+                          } else {
+                            unawaited(
+                              connector.startScan().catchError((e) {
+                                appLogger.warn(
+                                  'startScan error: $e',
+                                  tag: 'ScannerScreen',
+                                );
+                              }),
+                            );
+                          }
+                        },
+                  icon: isScanning
+                      ? const SizedBox(
+                          width: 20,
+                          height: 20,
+                          child: CircularProgressIndicator(strokeWidth: 2),
+                        )
+                      : const Icon(Icons.bluetooth_searching),
+                  label: Text(
+                    isScanning
+                        ? context.l10n.scanner_stop
+                        : context.l10n.scanner_scan,
+                  ),
+                ),
+              ],
             ),
           );
         },
@@ -264,7 +320,7 @@ class _ScannerScreenState extends State<ScannerScreen> {
               ],
             ),
           ),
-          if (Platform.isAndroid)
+          if (PlatformInfo.isAndroid)
             TextButton(
               onPressed: () => FlutterBluePlus.turnOn(),
               child: Text(context.l10n.scanner_enableBluetooth),

lib/screens/settings_screen.dart

@@ -8,6 +8,7 @@ import '../connector/meshcore_connector.dart';
 import '../connector/meshcore_protocol.dart';
 import '../l10n/l10n.dart';
 import '../models/radio_settings.dart';
+import '../widgets/app_bar.dart';
 import 'app_settings_screen.dart';
 import 'app_debug_log_screen.dart';
 import 'ble_debug_log_screen.dart';
@@ -41,7 +42,13 @@ class _SettingsScreenState extends State<SettingsScreen> {
   Widget build(BuildContext context) {
     final l10n = context.l10n;
     return Scaffold(
-      appBar: AppBar(title: Text(l10n.settings_title), centerTitle: true),
+      appBar: AppBar(
+        title: AppBarTitle(
+          l10n.settings_title,
+          indicators: false,
+          subtitle: false,
+        ),
+      ),
       body: SafeArea(
         top: false,
         child: Consumer<MeshCoreConnector>(
@@ -270,6 +277,14 @@ class _SettingsScreenState extends State<SettingsScreen> {
             onTap: () => _editLocation(context, connector),
           ),
           const Divider(height: 1),
+          ListTile(
+            leading: const Icon(Icons.group_add_outlined),
+            title: Text(l10n.settings_contactSettings),
+            subtitle: Text(l10n.settings_contactSettingsSubtitle),
+            trailing: const Icon(Icons.chevron_right),
+            onTap: () => _editAutoAddConfig(context, connector),
+          ),
+          const Divider(height: 1),
           ListTile(
             leading: const Icon(Icons.visibility_off_outlined),
             title: Text(l10n.settings_privacyMode),
@@ -845,6 +860,121 @@ class _SettingsScreenState extends State<SettingsScreen> {
       ),
     );
   }
+
+  void _editAutoAddConfig(BuildContext context, MeshCoreConnector connector) {
+    final l10n = context.l10n;
+    bool autoAddChat = false;
+    bool autoAddRepeater = false;
+    bool autoAddRoomServer = false;
+    bool autoAddSensor = false;
+    bool overwriteOldest = false;
+
+    final connector = context.read<MeshCoreConnector>();
+    autoAddChat = connector.autoAddUsers ?? false;
+    autoAddRepeater = connector.autoAddRepeaters ?? false;
+    autoAddRoomServer = connector.autoAddRoomServers ?? false;
+    autoAddSensor = connector.autoAddSensors ?? false;
+    overwriteOldest = connector.autoAddOverwriteOldest ?? false;
+
+    showDialog(
+      context: context,
+      builder: (dialogContext) => StatefulBuilder(
+        builder: (context, setDialogState) => AlertDialog(
+          title: Text(l10n.contactsSettings_autoAddTitle),
+          content: SingleChildScrollView(
+            child: Column(
+              mainAxisSize: MainAxisSize.min,
+              children: [
+                FeatureToggleRow(
+                  title: l10n.contactsSettings_autoAddUsersTitle,
+                  subtitle: l10n.contactsSettings_autoAddUsersSubtitle,
+                  value: autoAddChat,
+                  onChanged: (value) {
+                    setDialogState(() => autoAddChat = value);
+                  },
+                ),
+                SizedBox(height: 8),
+                FeatureToggleRow(
+                  title: l10n.contactsSettings_autoAddRepeatersTitle,
+                  subtitle: l10n.contactsSettings_autoAddRepeatersSubtitle,
+                  value: autoAddRepeater,
+                  onChanged: (value) {
+                    setDialogState(() => autoAddRepeater = value);
+                  },
+                ),
+                SizedBox(height: 8),
+                FeatureToggleRow(
+                  title: l10n.contactsSettings_autoAddRoomServersTitle,
+                  subtitle: l10n.contactsSettings_autoAddRoomServersSubtitle,
+                  value: autoAddRoomServer,
+                  onChanged: (value) {
+                    setDialogState(() => autoAddRoomServer = value);
+                  },
+                ),
+                SizedBox(height: 8),
+                FeatureToggleRow(
+                  title: l10n.contactsSettings_autoAddSensorsTitle,
+                  subtitle: l10n.contactsSettings_autoAddSensorsSubtitle,
+                  value: autoAddSensor,
+                  onChanged: (value) {
+                    setDialogState(() => autoAddSensor = value);
+                  },
+                ),
+                Divider(height: 4),
+                FeatureToggleRow(
+                  title: l10n.contactsSettings_overwriteOldestTitle,
+                  subtitle: l10n.contactsSettings_overwriteOldestSubtitle,
+                  value: overwriteOldest,
+                  onChanged: (value) {
+                    setDialogState(() => overwriteOldest = value);
+                  },
+                ),
+              ],
+            ),
+          ),
+          actions: [
+            TextButton(
+              onPressed: () => Navigator.pop(context),
+              child: Text(l10n.common_cancel),
+            ),
+            TextButton(
+              onPressed: () {
+                _sendSettings(
+                  connector,
+                  autoAddChat,
+                  autoAddRepeater,
+                  autoAddRoomServer,
+                  autoAddSensor,
+                  overwriteOldest,
+                );
+                Navigator.pop(context);
+              },
+              child: Text(l10n.common_save),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  void _sendSettings(
+    MeshCoreConnector connector,
+    bool autoAddChat,
+    bool autoAddRepeater,
+    bool autoAddRoomServer,
+    bool autoAddSensor,
+    bool overwriteOldest,
+  ) async {
+    final frame = buildSetAutoAddConfigFrame(
+      autoAddChat: autoAddChat,
+      autoAddRepeater: autoAddRepeater,
+      autoAddRoomServer: autoAddRoomServer,
+      autoAddSensor: autoAddSensor,
+      overwriteOldest: overwriteOldest,
+    );
+    await connector.sendFrame(frame);
+    await connector.sendFrame(buildGetAutoAddFlagsFrame());
+  }
 }
 
 class _RadioSettingsDialog extends StatefulWidget {

lib/screens/telemetry_screen.dart

@@ -5,11 +5,14 @@ import 'package:provider/provider.dart';
 import '../l10n/l10n.dart';
 import '../models/contact.dart';
 import '../models/path_selection.dart';
+import '../models/app_settings.dart';
 import '../connector/meshcore_connector.dart';
 import '../connector/meshcore_protocol.dart';
+import '../services/app_settings_service.dart';
 import '../services/repeater_command_service.dart';
 import '../widgets/path_management_dialog.dart';
 import '../helpers/cayenne_lpp.dart';
+import '../utils/battery_utils.dart';
 
 class TelemetryScreen extends StatefulWidget {
   final Contact repeater;
@@ -72,9 +75,19 @@ class _TelemetryScreenState extends State<TelemetryScreen> {
   }
 
   void _handleStatusResponse(Uint8List frame) {
+    final parsedTelemetry = CayenneLpp.parseByChannel(frame);
+    final batteryMv = _extractTelemetryBatteryMillivolts(parsedTelemetry);
+    if (batteryMv != null) {
+      final connector = Provider.of<MeshCoreConnector>(context, listen: false);
+      connector.updateRepeaterBatterySnapshot(
+        widget.repeater.publicKeyHex,
+        batteryMv,
+        source: 'telemetry',
+      );
+    }
     if (!mounted) return;
     setState(() {
-      _parsedTelemetry = CayenneLpp.parseByChannel(frame);
+      _parsedTelemetry = parsedTelemetry;
     });
 
     ScaffoldMessenger.of(context).showSnackBar(
@@ -181,6 +194,8 @@ class _TelemetryScreenState extends State<TelemetryScreen> {
   Widget build(BuildContext context) {
     final l10n = context.l10n;
     final connector = context.watch<MeshCoreConnector>();
+    final settings = context.watch<AppSettingsService>().settings;
+    final isImperialUnits = settings.unitSystem == UnitSystem.imperial;
     final repeater = _resolveRepeater(connector);
     final isFloodMode = repeater.pathOverride == -1;
 
@@ -307,6 +322,7 @@ class _TelemetryScreenState extends State<TelemetryScreen> {
                     entry['values'],
                     l10n.telemetry_channelTitle(entry['channel']),
                     entry['channel'],
+                    isImperialUnits,
                   ),
             ],
           ),
@@ -319,6 +335,7 @@ class _TelemetryScreenState extends State<TelemetryScreen> {
     Map<String, dynamic> channelData,
     String title,
     int channel,
+    bool isImperialUnits,
   ) {
     final l10n = context.l10n;
     return Card(
@@ -358,12 +375,12 @@ class _TelemetryScreenState extends State<TelemetryScreen> {
               else if (entry.key == 'temperature' && channel == 1)
                 _buildInfoRow(
                   l10n.telemetry_mcuTemperatureLabel,
-                  _temperatureText(entry.value),
+                  _temperatureText(entry.value, isImperialUnits),
                 )
               else if (entry.key == 'temperature')
                 _buildInfoRow(
                   l10n.telemetry_temperatureLabel,
-                  _temperatureText(entry.value),
+                  _temperatureText(entry.value, isImperialUnits),
                 )
               else if (entry.key == 'current' && channel == 1)
                 _buildInfoRow(
@@ -405,29 +422,44 @@ class _TelemetryScreenState extends State<TelemetryScreen> {
     );
   }
 
-  String _batteryText(double? batteryMv) {
+  int? _extractTelemetryBatteryMillivolts(List<Map<String, dynamic>> entries) {
+    for (final entry in entries) {
+      if (entry['channel'] != 1) continue;
+      final values = entry['values'];
+      if (values is! Map<String, dynamic>) continue;
+      final voltage = values['voltage'];
+      if (voltage is num) return (voltage.toDouble() * 1000).round();
+    }
+    return null;
+  }
+
+  String _batteryText(double? telemetryVolts) {
     final l10n = context.l10n;
+    final connector = context.watch<MeshCoreConnector>();
+    final batteryMv =
+        connector.getRepeaterBatteryMillivolts(widget.repeater.publicKeyHex) ??
+        (telemetryVolts == null ? null : (telemetryVolts * 1000).round());
     if (batteryMv == null) return l10n.common_notAvailable;
-    final percent = _batteryPercentFromMv(batteryMv);
+    final chemistry = _batteryChemistry();
-    final volts = batteryMv.toStringAsFixed(2);
+    final percent = estimateBatteryPercentFromMillivolts(batteryMv, chemistry);
+    final volts = (batteryMv / 1000).toStringAsFixed(2);
     return l10n.telemetry_batteryValue(percent, volts);
   }
 
-  int _batteryPercentFromMv(double millivolts) {
+  String _batteryChemistry() {
-    const minMv = 2.800;
+    final settingsService = context.read<AppSettingsService>();
-    const maxMv = 4.200;
+    return settingsService.batteryChemistryForRepeater(
-    if (millivolts <= minMv) return 0;
+      widget.repeater.publicKeyHex,
-    if (millivolts >= maxMv) return 100;
+    );
-    return (((millivolts - minMv) * 100) / (maxMv - minMv)).round();
   }
 
-  String _temperatureText(double? tempC) {
+  String _temperatureText(double? tempC, bool isImperialUnits) {
     final l10n = context.l10n;
     if (tempC == null) return l10n.common_notAvailable;
     final tempF = (tempC * 9 / 5) + 32;
-    return l10n.telemetry_temperatureValue(
+    if (isImperialUnits) {
-      tempC.toStringAsFixed(1),
+      return '${tempF.toStringAsFixed(1)}°F';
-      tempF.toStringAsFixed(1),
+    }
-    );
+    return '${tempC.toStringAsFixed(1)}°C';
   }
 }

lib/screens/usb_screen.dart

@@ -0,0 +1,405 @@
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:provider/provider.dart';
+
+import '../connector/meshcore_connector.dart';
+import '../l10n/l10n.dart';
+import '../utils/app_logger.dart';
+import '../utils/platform_info.dart';
+import '../utils/usb_port_labels.dart';
+import '../widgets/adaptive_app_bar_title.dart';
+import 'contacts_screen.dart';
+import 'scanner_screen.dart';
+
+class UsbScreen extends StatefulWidget {
+  const UsbScreen({super.key});
+
+  @override
+  State<UsbScreen> createState() => _UsbScreenState();
+}
+
+class _UsbScreenState extends State<UsbScreen> {
+  final List<String> _ports = <String>[];
+  bool _isLoadingPorts = true;
+  bool _navigatedToContacts = false;
+  bool _didScheduleInitialLoad = false;
+  Timer? _hotPlugTimer;
+  late final MeshCoreConnector _connector;
+  late final VoidCallback _connectionListener;
+
+  bool get _supportsHotPlug =>
+      PlatformInfo.isWindows || PlatformInfo.isLinux || PlatformInfo.isMacOS;
+
+  @override
+  void initState() {
+    super.initState();
+    _connector = context.read<MeshCoreConnector>();
+    _connectionListener = () {
+      if (!mounted) return;
+      if (_connector.state == MeshCoreConnectionState.disconnected) {
+        _navigatedToContacts = false;
+      }
+      if (_connector.state == MeshCoreConnectionState.connected &&
+          _connector.isUsbTransportConnected &&
+          !_navigatedToContacts) {
+        _navigatedToContacts = true;
+        Navigator.of(context).pushReplacement(
+          MaterialPageRoute(builder: (_) => const ContactsScreen()),
+        );
+      }
+    };
+    _connector.addListener(_connectionListener);
+    _startHotPlugTimer();
+  }
+
+  @override
+  void didChangeDependencies() {
+    super.didChangeDependencies();
+    _connector.setUsbRequestPortLabel(context.l10n.usbScreenStatus);
+    _connector.setUsbFallbackDeviceName(context.l10n.usbFallbackDeviceName);
+    if (!_didScheduleInitialLoad) {
+      _didScheduleInitialLoad = true;
+      unawaited(_loadPorts());
+    }
+  }
+
+  @override
+  void dispose() {
+    _hotPlugTimer?.cancel();
+    _hotPlugTimer = null;
+    _connector.removeListener(_connectionListener);
+    if (!_navigatedToContacts &&
+        _connector.activeTransport == MeshCoreTransportType.usb &&
+        _connector.state != MeshCoreConnectionState.disconnected) {
+      WidgetsBinding.instance.addPostFrameCallback((_) {
+        unawaited(_connector.disconnect(manual: true));
+      });
+    }
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        leading: IconButton(
+          icon: const Icon(Icons.arrow_back),
+          onPressed: () => Navigator.of(context).maybePop(),
+        ),
+        title: AdaptiveAppBarTitle(context.l10n.usbScreenTitle),
+        centerTitle: true,
+      ),
+      body: SafeArea(
+        top: false,
+        child: Consumer<MeshCoreConnector>(
+          builder: (context, connector, child) {
+            return Column(
+              children: [
+                _buildStatusBar(context, connector),
+                Expanded(child: _buildPortList(context, connector)),
+              ],
+            );
+          },
+        ),
+      ),
+      bottomNavigationBar: Consumer<MeshCoreConnector>(
+        builder: (context, connector, child) {
+          final isLoading = _isLoadingPorts;
+          final showBle = PlatformInfo.isWeb ||
+              PlatformInfo.isAndroid ||
+              PlatformInfo.isIOS;
+
+          return SafeArea(
+            top: false,
+            minimum: const EdgeInsets.fromLTRB(16, 8, 16, 16),
+            child: Row(
+              mainAxisAlignment: MainAxisAlignment.end,
+              children: [
+                if (showBle)
+                  FloatingActionButton.extended(
+                    onPressed: () {
+                      Navigator.of(context).pushReplacement(
+                        MaterialPageRoute(
+                          builder: (_) => const ScannerScreen(),
+                        ),
+                      );
+                    },
+                    heroTag: 'usb_ble_action',
+                    icon: const Icon(Icons.bluetooth),
+                    label: Text(context.l10n.connectionChoiceBluetoothLabel),
+                  ),
+                if (showBle) const SizedBox(width: 12),
+                if (!_supportsHotPlug)
+                  FloatingActionButton.extended(
+                    onPressed: isLoading ? null : _loadPorts,
+                    heroTag: 'usb_refresh_action',
+                    icon: isLoading
+                        ? const SizedBox(
+                            width: 20,
+                            height: 20,
+                            child: CircularProgressIndicator(strokeWidth: 2),
+                          )
+                        : const Icon(Icons.refresh),
+                    label: Text(context.l10n.repeater_refresh),
+                  ),
+              ],
+            ),
+          );
+        },
+      ),
+    );
+  }
+
+  Widget _buildStatusBar(BuildContext context, MeshCoreConnector connector) {
+    final l10n = context.l10n;
+    String statusText;
+    Color statusColor;
+
+    if (_isLoadingPorts) {
+      statusText = l10n.usbStatus_searching;
+      statusColor = Colors.blue;
+    } else if (connector.isUsbTransportConnected) {
+      switch (connector.state) {
+        case MeshCoreConnectionState.connected:
+          statusText = l10n.scanner_connectedTo(
+            connector.activeUsbPortDisplayLabel ?? 'USB',
+          );
+          statusColor = Colors.green;
+        case MeshCoreConnectionState.disconnecting:
+          statusText = l10n.scanner_disconnecting;
+          statusColor = Colors.orange;
+        default:
+          statusText = l10n.usbStatus_notConnected;
+          statusColor = Colors.grey;
+      }
+    } else if (connector.state == MeshCoreConnectionState.connecting &&
+        connector.activeTransport == MeshCoreTransportType.usb) {
+      statusText = l10n.usbStatus_connecting;
+      statusColor = Colors.orange;
+    } else {
+      statusText = l10n.usbStatus_notConnected;
+      statusColor = Colors.grey;
+    }
+
+    return Container(
+      width: double.infinity,
+      padding: const EdgeInsets.symmetric(vertical: 8, horizontal: 16),
+      color: statusColor.withValues(alpha: 0.1),
+      child: Row(
+        children: [
+          Icon(Icons.circle, size: 12, color: statusColor),
+          const SizedBox(width: 8),
+          Text(
+            statusText,
+            style: TextStyle(color: statusColor, fontWeight: FontWeight.w500),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildPortList(BuildContext context, MeshCoreConnector connector) {
+    final l10n = context.l10n;
+
+    if (_isLoadingPorts) {
+      return Center(
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            Icon(Icons.usb, size: 64, color: Colors.grey[400]),
+            const SizedBox(height: 16),
+            Text(
+              l10n.usbStatus_searching,
+              style: TextStyle(fontSize: 16, color: Colors.grey[600]),
+            ),
+          ],
+        ),
+      );
+    }
+
+    if (_ports.isEmpty) {
+      return Center(
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            Icon(Icons.usb, size: 64, color: Colors.grey[400]),
+            const SizedBox(height: 16),
+            Text(
+              l10n.usbScreenEmptyState,
+              textAlign: TextAlign.center,
+              style: TextStyle(fontSize: 16, color: Colors.grey[600]),
+            ),
+          ],
+        ),
+      );
+    }
+
+    final isConnecting =
+        connector.state == MeshCoreConnectionState.connecting &&
+            connector.activeTransport == MeshCoreTransportType.usb;
+
+    return ListView.separated(
+      padding: const EdgeInsets.all(8),
+      itemCount: _ports.length,
+      separatorBuilder: (context, index) => const Divider(),
+      itemBuilder: (context, index) {
+        final port = _ports[index];
+        final displayName = friendlyUsbPortName(port);
+        final rawName = normalizeUsbPortName(port);
+        final showRawName =
+            rawName != displayName && !rawName.startsWith('web:');
+
+        return ListTile(
+          leading: const Icon(Icons.usb),
+          title: Text(
+            displayName,
+            style: const TextStyle(fontWeight: FontWeight.w500),
+          ),
+          subtitle: showRawName ? Text(rawName) : null,
+          trailing: ElevatedButton(
+            onPressed:
+                isConnecting ? null : () => _connectPort(port),
+            child: Text(l10n.common_connect),
+          ),
+          onTap: isConnecting ? null : () => _connectPort(port),
+        );
+      },
+    );
+  }
+
+  void _startHotPlugTimer() {
+    if (!_supportsHotPlug) return;
+    _hotPlugTimer?.cancel();
+    _hotPlugTimer = Timer.periodic(const Duration(seconds: 2), (_) {
+      _pollHotPlug();
+    });
+  }
+
+  Future<void> _pollHotPlug() async {
+    if (_isLoadingPorts) return;
+    if (!mounted) return;
+    // Don't poll while connecting or connected.
+    if (_connector.state != MeshCoreConnectionState.disconnected) return;
+    try {
+      final ports = await _connector.listUsbPorts();
+      if (!mounted) return;
+      final added = ports.where((p) => !_ports.contains(p)).toList();
+      final removed = _ports.where((p) => !ports.contains(p)).toList();
+      if (added.isEmpty && removed.isEmpty) return;
+      setState(() {
+        _ports
+          ..clear()
+          ..addAll(ports);
+      });
+    } catch (_) {
+      // Silent — hot-plug failures are non-critical.
+    }
+  }
+
+  Future<void> _loadPorts() async {
+    if (!mounted) return;
+    _connector.setUsbRequestPortLabel(context.l10n.usbScreenStatus);
+
+    setState(() {
+      _isLoadingPorts = true;
+    });
+
+    try {
+      final ports = await _connector.listUsbPorts();
+      if (!mounted) return;
+      setState(() {
+        _ports
+          ..clear()
+          ..addAll(ports);
+        _isLoadingPorts = false;
+      });
+    } catch (error) {
+      if (!mounted) return;
+      setState(() {
+        _ports.clear();
+        _isLoadingPorts = false;
+      });
+      _showError(error);
+    }
+  }
+
+  Future<void> _connectPort(String port) async {
+    if (_connector.state != MeshCoreConnectionState.disconnected) return;
+
+    final rawPortName = normalizeUsbPortName(port);
+    appLogger.info('Connect tapped for $port (raw: $rawPortName)',
+        tag: 'UsbScreen');
+
+    try {
+      await _connector.connectUsb(portName: rawPortName);
+    } catch (error, stackTrace) {
+      appLogger.error(
+        'Connect failed for $rawPortName: $error\n$stackTrace',
+        tag: 'UsbScreen',
+      );
+      if (!mounted) return;
+      _showError(error);
+      unawaited(_loadPorts());
+    }
+  }
+
+  void _showError(Object error) {
+    if (!mounted) return;
+    ScaffoldMessenger.of(context).showSnackBar(
+      SnackBar(
+        content: Text(_friendlyErrorMessage(error)),
+        backgroundColor: Colors.red,
+      ),
+    );
+  }
+
+  String _friendlyErrorMessage(Object error) {
+    final l10n = context.l10n;
+
+    if (error is PlatformException) {
+      switch (error.code) {
+        case 'usb_permission_denied':
+          return l10n.usbErrorPermissionDenied;
+        case 'usb_device_missing':
+        case 'usb_device_detached':
+          return l10n.usbErrorDeviceMissing;
+        case 'usb_invalid_port':
+          return l10n.usbErrorInvalidPort;
+        case 'usb_busy':
+          return l10n.usbErrorBusy;
+        case 'usb_not_connected':
+          return l10n.usbErrorNotConnected;
+        case 'usb_open_failed':
+        case 'usb_driver_missing':
+          return l10n.usbErrorOpenFailed;
+        case 'usb_connect_failed':
+          return l10n.usbErrorConnectFailed;
+      }
+    }
+
+    if (error is UnsupportedError) {
+      return l10n.usbErrorUnsupported;
+    }
+
+    if (error is StateError) {
+      final msg = error.message;
+      if (msg.contains('already active')) return l10n.usbErrorAlreadyActive;
+      if (msg.contains('No USB serial device selected')) {
+        return l10n.usbErrorNoDeviceSelected;
+      }
+      if (msg.contains('not open') || msg.contains('closed')) {
+        return l10n.usbErrorPortClosed;
+      }
+      if (msg.contains('Timed out')) return l10n.usbErrorConnectTimedOut;
+      if (msg.contains('Failed to open')) return l10n.usbErrorOpenFailed;
+    }
+
+    if (error is TimeoutException) {
+      return l10n.usbErrorConnectTimedOut;
+    }
+
+    return error.toString();
+  }
+}

lib/services/app_debug_log_service.dart

@@ -52,7 +52,12 @@ class AppDebugLogService extends ChangeNotifier {
     String tag = 'App',
     AppDebugLogLevel level = AppDebugLogLevel.info,
   }) {
-    if (!_enabled) return;
+    if (!_enabled && !kDebugMode) return;
+    if (!_enabled) {
+      // In debug mode, still print to console but don't store entries.
+      debugPrint('[$tag] $message');
+      return;
+    }
 
     _entries.add(
       AppDebugLogEntry(

lib/services/app_settings_service.dart

@@ -17,6 +17,12 @@ class AppSettingsService extends ChangeNotifier {
     return stored ?? 'nmc';
   }
 
+  String batteryChemistryForRepeater(String repeaterPubKeyHex) {
+    final stored = _settings.batteryChemistryByRepeaterId[repeaterPubKeyHex];
+    if (stored == 'liion') return 'nmc';
+    return stored ?? 'nmc';
+  }
+
   Future<void> loadSettings() async {
     final prefs = PrefsManager.instance;
     final jsonStr = prefs.getString(_settingsKey);
@@ -74,6 +80,14 @@ class AppSettingsService extends ChangeNotifier {
     await updateSettings(_settings.copyWith(mapShowMarkers: value));
   }
 
+  Future<void> setMapShowGuessedLocations(bool value) async {
+    await updateSettings(_settings.copyWith(mapShowGuessedLocations: value));
+  }
+
+  Future<void> setEnableMessageTracing(bool value) async {
+    await updateSettings(_settings.copyWith(enableMessageTracing: value));
+  }
+
   Future<void> setMapCacheBounds(Map<String, double>? value) async {
     await updateSettings(_settings.copyWith(mapCacheBounds: value));
   }
@@ -132,4 +146,36 @@ class AppSettingsService extends ChangeNotifier {
       _settings.copyWith(batteryChemistryByDeviceId: updated),
     );
   }
+
+  Future<void> setBatteryChemistryForRepeater(
+    String repeaterPubKeyHex,
+    String chemistry,
+  ) async {
+    final updated = Map<String, String>.from(
+      _settings.batteryChemistryByRepeaterId,
+    );
+    updated[repeaterPubKeyHex] = chemistry;
+    await updateSettings(
+      _settings.copyWith(batteryChemistryByRepeaterId: updated),
+    );
+  }
+
+  Future<void> setUnitSystem(UnitSystem value) async {
+    await updateSettings(_settings.copyWith(unitSystem: value));
+  }
+
+  bool isChannelMuted(String channelName) {
+    return _settings.mutedChannels.contains(channelName);
+  }
+
+  Future<void> muteChannel(String channelName) async {
+    final updated = Set<String>.from(_settings.mutedChannels)..add(channelName);
+    await updateSettings(_settings.copyWith(mutedChannels: updated));
+  }
+
+  Future<void> unmuteChannel(String channelName) async {
+    final updated = Set<String>.from(_settings.mutedChannels)
+      ..remove(channelName);
+    await updateSettings(_settings.copyWith(mutedChannels: updated));
+  }
 }

lib/services/background_service.dart

@@ -1,12 +1,11 @@
-import 'dart:io';
+import '../utils/platform_info.dart';
-
 import 'package:flutter_foreground_task/flutter_foreground_task.dart';
 
 class BackgroundService {
   bool _initialized = false;
 
   Future<void> initialize() async {
-    if (!Platform.isAndroid || _initialized) return;
+    if (!PlatformInfo.isAndroid || _initialized) return;
     FlutterForegroundTask.init(
       androidNotificationOptions: AndroidNotificationOptions(
         channelId: 'meshcore_background',
@@ -29,7 +28,7 @@ class BackgroundService {
   }
 
   Future<void> start() async {
-    if (!Platform.isAndroid) return;
+    if (!PlatformInfo.isAndroid) return;
     if (!_initialized) {
       await initialize();
     }
@@ -43,7 +42,7 @@ class BackgroundService {
   }
 
   Future<void> stop() async {
-    if (!Platform.isAndroid) return;
+    if (!PlatformInfo.isAndroid) return;
     final running = await FlutterForegroundTask.isRunningService;
     if (!running) return;
     await FlutterForegroundTask.stopService();

lib/services/ble_debug_log_service.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/foundation.dart';
+import 'package:flutter/scheduler.dart';
 import '../connector/meshcore_protocol.dart';
 
 class BleDebugLogEntry {
@@ -44,6 +45,7 @@ class BleDebugLogService extends ChangeNotifier {
   static const int maxEntries = 500;
   final List<BleDebugLogEntry> _entries = [];
   final List<BleRawLogRxEntry> _rawLogRxEntries = [];
+  bool _notifyScheduled = false;
 
   List<BleDebugLogEntry> get entries => List.unmodifiable(_entries);
   List<BleRawLogRxEntry> get rawLogRxEntries =>
@@ -78,13 +80,31 @@ class BleDebugLogService extends ChangeNotifier {
       }
     }
 
-    notifyListeners();
+    _notifyListenersSafely();
   }
 
   void clear() {
     _entries.clear();
     _rawLogRxEntries.clear();
-    notifyListeners();
+    _notifyListenersSafely();
+  }
+
+  void _notifyListenersSafely() {
+    final phase = SchedulerBinding.instance.schedulerPhase;
+    final canNotifyNow =
+        phase == SchedulerPhase.idle ||
+        phase == SchedulerPhase.postFrameCallbacks;
+    if (canNotifyNow) {
+      notifyListeners();
+      return;
+    }
+
+    if (_notifyScheduled) return;
+    _notifyScheduled = true;
+    SchedulerBinding.instance.addPostFrameCallback((_) {
+      _notifyScheduled = false;
+      notifyListeners();
+    });
   }
 
   String _describeFrame(
@@ -152,8 +172,6 @@ class BleDebugLogService extends ChangeNotifier {
         return 'CMD_GET_CHANNEL';
       case cmdSetChannel:
         return 'CMD_SET_CHANNEL';
-      case cmdGetRadioSettings:
-        return 'CMD_GET_RADIO_SETTINGS';
       case cmdSetCustomVar:
         return 'CMD_SET_CUSTOM_VAR';
       case cmdSendTracePath:
@@ -195,8 +213,8 @@ class BleDebugLogService extends ChangeNotifier {
         return 'RESP_CODE_CHANNEL_MSG_RECV_V3';
       case respCodeChannelInfo:
         return 'RESP_CODE_CHANNEL_INFO';
-      case respCodeRadioSettings:
+      case respCodeAutoAddConfig:
-        return 'RESP_CODE_RADIO_SETTINGS';
+        return 'RESP_CODE_AUTO_ADD_CONFIG';
       case pushCodeTraceData:
         return 'PUSH_CODE_TRACE_DATA';
       default:

lib/services/chat_text_scale_service.dart

@@ -0,0 +1,72 @@
+import 'dart:async';
+
+import 'package:flutter/foundation.dart';
+
+import '../storage/prefs_manager.dart';
+
+/// Client-side accessibility/UI service that exposes a persistent shared text scale
+/// factor. No MeshCoreConnector/RoomServer or protocol interaction occurs, and the
+/// value is saved locally via SharedPreferences so it can be reused in Markdown
+/// viewers, log panels, or other text-heavy widgets without redundant network
+/// dependencies.
+///
+/// Widgets should scope rebuilds using the snippet below so only the scaled text
+/// is rebuilt instead of the entire chat list:
+/// ```dart
+/// context.select<ChatTextScaleService, double>(
+///   (service) => service.scale,
+/// )
+/// ```
+class ChatTextScaleService extends ChangeNotifier {
+  static const _prefKey = 'chat_text_scale';
+  static const double _minScale = 0.8;
+  static const double _maxScale = 1.8;
+
+  double _scale = 1.0;
+  Timer? _saveTimer;
+
+  double get scale => _scale;
+
+  Future<void> initialize() async {
+    final stored = PrefsManager.instance.getDouble(_prefKey);
+    if (stored != null) {
+      _scale = _clamp(stored);
+    }
+  }
+
+  void setScale(double value, {bool persistImmediately = false}) {
+    final next = _clamp(value);
+    if (next == _scale) return;
+    _scale = next;
+    notifyListeners();
+    if (persistImmediately) {
+      _commitScale();
+    } else {
+      _scheduleSave();
+    }
+  }
+
+  void reset() {
+    setScale(1.0, persistImmediately: true);
+  }
+
+  void persist() => _commitScale();
+
+  @override
+  void dispose() {
+    _saveTimer?.cancel();
+    super.dispose();
+  }
+
+  void _scheduleSave() {
+    _saveTimer?.cancel();
+    _saveTimer = Timer(const Duration(milliseconds: 250), _commitScale);
+  }
+
+  void _commitScale() {
+    _saveTimer?.cancel();
+    PrefsManager.instance.setDouble(_prefKey, _scale);
+  }
+
+  double _clamp(double value) => value.clamp(_minScale, _maxScale).toDouble();
+}

lib/services/line_of_sight_service.dart

@@ -0,0 +1,446 @@
+import 'dart:convert';
+import 'dart:async';
+import 'dart:math';
+
+import 'package:http/http.dart' as http;
+import 'package:latlong2/latlong.dart';
+
+typedef ElevationDataSource =
+    Future<List<double?>> Function(List<LatLng> points);
+
+class LineOfSightSample {
+  final double distanceMeters;
+  final double terrainMeters;
+  final double lineHeightMeters;
+  final double refractedHeightMeters;
+  final double clearanceMeters;
+
+  const LineOfSightSample({
+    required this.distanceMeters,
+    required this.terrainMeters,
+    required this.lineHeightMeters,
+    required this.refractedHeightMeters,
+    required this.clearanceMeters,
+  });
+}
+
+class LineOfSightResult {
+  final bool hasData;
+  final bool isClear;
+  final double totalDistanceMeters;
+  final double maxObstructionMeters;
+  final double? firstObstructionDistanceMeters;
+  final List<LineOfSightSample> samples;
+  final String? errorMessage;
+  final double usedKFactor;
+  final double? frequencyMHz;
+
+  const LineOfSightResult({
+    required this.hasData,
+    required this.isClear,
+    required this.totalDistanceMeters,
+    required this.maxObstructionMeters,
+    required this.firstObstructionDistanceMeters,
+    required this.samples,
+    required this.usedKFactor,
+    this.frequencyMHz,
+    this.errorMessage,
+  });
+
+  const LineOfSightResult.error({
+    required this.totalDistanceMeters,
+    required this.errorMessage,
+    this.usedKFactor = 4.0 / 3.0,
+    this.frequencyMHz,
+  }) : hasData = false,
+       isClear = false,
+       maxObstructionMeters = 0,
+       firstObstructionDistanceMeters = null,
+       samples = const [];
+}
+
+class LineOfSightPathSegment {
+  final int index;
+  final LatLng start;
+  final LatLng end;
+  final LineOfSightResult result;
+
+  const LineOfSightPathSegment({
+    required this.index,
+    required this.start,
+    required this.end,
+    required this.result,
+  });
+}
+
+class LineOfSightPathResult {
+  final List<LineOfSightPathSegment> segments;
+  final int clearSegments;
+  final int blockedSegments;
+  final int unknownSegments;
+
+  const LineOfSightPathResult({
+    required this.segments,
+    required this.clearSegments,
+    required this.blockedSegments,
+    required this.unknownSegments,
+  });
+}
+
+class LineOfSightService {
+  static const String errorElevationUnavailable =
+      'los_error_elevation_unavailable';
+  static const String errorInvalidInput = 'los_error_invalid_input';
+
+  static const double _earthRadiusMeters = 6371000.0;
+  static const Distance _distance = Distance();
+  static const Duration _cacheTtl = Duration(hours: 24);
+  static const int _maxFetchAttempts = 4; // initial try + 3 retries
+  static const Duration _initialBackoff = Duration(milliseconds: 300);
+  static const double _baselineFrequencyMHz = 915.0;
+  static const double _baselineKFactor = 4.0 / 3.0;
+
+  static double get baselineFrequencyMHz => _baselineFrequencyMHz;
+  static double get baselineKFactor => _baselineKFactor;
+
+  final http.Client _httpClient;
+  final bool _ownsHttpClient;
+  final ElevationDataSource? _elevationDataSource;
+  final Map<String, _CachedElevation> _elevationCache = {};
+
+  LineOfSightService({
+    http.Client? httpClient,
+    ElevationDataSource? elevationDataSource,
+  }) : _httpClient = httpClient ?? http.Client(),
+       _ownsHttpClient = httpClient == null,
+       _elevationDataSource = elevationDataSource;
+
+  Future<LineOfSightPathResult> analyzePath(
+    List<LatLng> points, {
+    double startAntennaHeightMeters = 1.5,
+    double endAntennaHeightMeters = 1.5,
+    double? frequencyMHz,
+    double obstructionToleranceMeters = 0.0,
+  }) async {
+    if (points.length < 2) {
+      return const LineOfSightPathResult(
+        segments: [],
+        clearSegments: 0,
+        blockedSegments: 0,
+        unknownSegments: 0,
+      );
+    }
+
+    final segments = <LineOfSightPathSegment>[];
+    var clearSegments = 0;
+    var blockedSegments = 0;
+    var unknownSegments = 0;
+
+    final kFactor = _kFactorForFrequency(frequencyMHz);
+    for (int i = 0; i < points.length - 1; i++) {
+      final result = await analyzeLink(
+        points[i],
+        points[i + 1],
+        startAntennaHeightMeters: startAntennaHeightMeters,
+        endAntennaHeightMeters: endAntennaHeightMeters,
+        kFactor: kFactor,
+        frequencyMHz: frequencyMHz,
+        obstructionToleranceMeters: obstructionToleranceMeters,
+      );
+      segments.add(
+        LineOfSightPathSegment(
+          index: i,
+          start: points[i],
+          end: points[i + 1],
+          result: result,
+        ),
+      );
+
+      if (!result.hasData) {
+        unknownSegments++;
+      } else if (result.isClear) {
+        clearSegments++;
+      } else {
+        blockedSegments++;
+      }
+    }
+
+    return LineOfSightPathResult(
+      segments: segments,
+      clearSegments: clearSegments,
+      blockedSegments: blockedSegments,
+      unknownSegments: unknownSegments,
+    );
+  }
+
+  Future<LineOfSightResult> analyzeLink(
+    LatLng start,
+    LatLng end, {
+    double startAntennaHeightMeters = 1.5,
+    double endAntennaHeightMeters = 1.5,
+    required double kFactor,
+    double? frequencyMHz,
+    double obstructionToleranceMeters = 0.0,
+  }) async {
+    final totalDistanceMeters = _distance.as(LengthUnit.Meter, start, end);
+    if (totalDistanceMeters <= 1) {
+      return LineOfSightResult(
+        hasData: true,
+        isClear: true,
+        totalDistanceMeters: totalDistanceMeters,
+        maxObstructionMeters: 0,
+        firstObstructionDistanceMeters: null,
+        samples: const [],
+        usedKFactor: kFactor,
+        frequencyMHz: frequencyMHz,
+      );
+    }
+
+    final samplePoints = _buildSamplePoints(start, end, totalDistanceMeters);
+    final elevations = await _getElevations(samplePoints);
+
+    if (elevations.any((e) => e == null)) {
+      return LineOfSightResult.error(
+        totalDistanceMeters: totalDistanceMeters,
+        errorMessage: errorElevationUnavailable,
+        usedKFactor: kFactor,
+        frequencyMHz: frequencyMHz,
+      );
+    }
+
+    return computeFromElevations(
+      points: samplePoints,
+      elevations: elevations.cast<double>(),
+      startAntennaHeightMeters: startAntennaHeightMeters,
+      endAntennaHeightMeters: endAntennaHeightMeters,
+      kFactor: kFactor,
+      frequencyMHz: frequencyMHz,
+      obstructionToleranceMeters: obstructionToleranceMeters,
+    );
+  }
+
+  static LineOfSightResult computeFromElevations({
+    required List<LatLng> points,
+    required List<double> elevations,
+    double startAntennaHeightMeters = 1.5,
+    double endAntennaHeightMeters = 1.5,
+    required double kFactor,
+    double? frequencyMHz,
+    double obstructionToleranceMeters = 0.0,
+  }) {
+    if (points.length < 2 || elevations.length != points.length) {
+      return LineOfSightResult.error(
+        totalDistanceMeters: 0,
+        errorMessage: errorInvalidInput,
+        usedKFactor: kFactor,
+        frequencyMHz: frequencyMHz,
+      );
+    }
+
+    final totalDistanceMeters = _distance.as(
+      LengthUnit.Meter,
+      points.first,
+      points.last,
+    );
+    final effectiveEarthRadius = _earthRadiusMeters * kFactor;
+    final startLineHeight = elevations.first + startAntennaHeightMeters;
+    final endLineHeight = elevations.last + endAntennaHeightMeters;
+
+    var maxObstructionMeters = 0.0;
+    double? firstObstructionDistanceMeters;
+    final samples = <LineOfSightSample>[];
+    var isClear = true;
+
+    for (int i = 0; i < points.length; i++) {
+      final fraction = points.length == 1 ? 0.0 : i / (points.length - 1);
+      final distanceFromStart = totalDistanceMeters * fraction;
+      final lineHeight =
+          startLineHeight + (endLineHeight - startLineHeight) * fraction;
+
+      final earthBulge =
+          (distanceFromStart * (totalDistanceMeters - distanceFromStart)) /
+          (2 * effectiveEarthRadius);
+      final terrainHeight = elevations[i] + earthBulge;
+      final clearance = lineHeight - terrainHeight;
+      final unrefBulge =
+          (distanceFromStart * (totalDistanceMeters - distanceFromStart)) /
+          (2 * _earthRadiusMeters);
+      final refractedHeight = lineHeight + (unrefBulge - earthBulge);
+
+      if (clearance < -obstructionToleranceMeters) {
+        isClear = false;
+        final obstruction = -clearance;
+        if (obstruction > maxObstructionMeters) {
+          maxObstructionMeters = obstruction;
+        }
+        firstObstructionDistanceMeters ??= distanceFromStart;
+      }
+
+      samples.add(
+        LineOfSightSample(
+          distanceMeters: distanceFromStart,
+          terrainMeters: terrainHeight,
+          lineHeightMeters: lineHeight,
+          refractedHeightMeters: refractedHeight,
+          clearanceMeters: clearance,
+        ),
+      );
+    }
+
+    return LineOfSightResult(
+      hasData: true,
+      isClear: isClear,
+      totalDistanceMeters: totalDistanceMeters,
+      maxObstructionMeters: maxObstructionMeters,
+      firstObstructionDistanceMeters: firstObstructionDistanceMeters,
+      samples: samples,
+      usedKFactor: kFactor,
+      frequencyMHz: frequencyMHz,
+    );
+  }
+
+  static double _kFactorForFrequency(double? frequencyMHz) {
+    if (frequencyMHz == null) return _baselineKFactor;
+    final delta =
+        (frequencyMHz - _baselineFrequencyMHz) / _baselineFrequencyMHz;
+    final adjustment = delta * 0.15;
+    final scaled = _baselineKFactor * (1 + adjustment);
+    return scaled.clamp(1.1, 1.6).toDouble();
+  }
+
+  List<LatLng> _buildSamplePoints(
+    LatLng start,
+    LatLng end,
+    double distanceMeters,
+  ) {
+    final sampleCount = distanceMeters < 2000
+        ? 21
+        : distanceMeters < 10000
+        ? 41
+        : 81;
+
+    final points = <LatLng>[];
+    for (int i = 0; i < sampleCount; i++) {
+      final t = i / (sampleCount - 1);
+      points.add(
+        LatLng(
+          start.latitude + (end.latitude - start.latitude) * t,
+          start.longitude + (end.longitude - start.longitude) * t,
+        ),
+      );
+    }
+    return points;
+  }
+
+  Future<List<double?>> _getElevations(List<LatLng> points) async {
+    final dataSource = _elevationDataSource;
+    if (dataSource != null) {
+      return dataSource(points);
+    }
+
+    final uncached = <int, LatLng>{};
+    final values = List<double?>.filled(points.length, null);
+    for (int i = 0; i < points.length; i++) {
+      final key = _cacheKey(points[i]);
+      final cached = _readCachedValue(key);
+      if (cached != null) {
+        values[i] = cached;
+      } else {
+        uncached[i] = points[i];
+      }
+    }
+
+    if (uncached.isEmpty) return values;
+
+    final latCsv = uncached.values
+        .map((p) => p.latitude.toStringAsFixed(6))
+        .join(',');
+    final lonCsv = uncached.values
+        .map((p) => p.longitude.toStringAsFixed(6))
+        .join(',');
+
+    final uri = Uri.parse(
+      'https://api.open-meteo.com/v1/elevation?latitude=$latCsv&longitude=$lonCsv',
+    );
+
+    final response = await _getWithBackoff(uri);
+    if (response.statusCode != 200) {
+      return values;
+    }
+
+    final decoded = jsonDecode(response.body);
+    if (decoded is! Map<String, dynamic>) {
+      return values;
+    }
+    final elevations = decoded['elevation'];
+    if (elevations is! List) {
+      return values;
+    }
+
+    final indices = uncached.keys.toList();
+    for (int i = 0; i < min(indices.length, elevations.length); i++) {
+      final value = elevations[i];
+      if (value is! num) continue;
+      final index = indices[i];
+      final elevation = value.toDouble();
+      values[index] = elevation;
+      _elevationCache[_cacheKey(points[index])] = _CachedElevation(
+        value: elevation,
+        expiresAt: DateTime.now().add(_cacheTtl),
+      );
+    }
+    return values;
+  }
+
+  Future<http.Response> _getWithBackoff(Uri uri) async {
+    var attempt = 0;
+    Duration backoff = _initialBackoff;
+
+    while (true) {
+      attempt++;
+      try {
+        final response = await _httpClient.get(uri);
+        if (!_shouldRetryStatus(response.statusCode) ||
+            attempt >= _maxFetchAttempts) {
+          return response;
+        }
+      } catch (_) {
+        if (attempt >= _maxFetchAttempts) rethrow;
+      }
+
+      await Future.delayed(backoff);
+      backoff *= 2;
+    }
+  }
+
+  bool _shouldRetryStatus(int statusCode) {
+    return statusCode == 429 || statusCode >= 500;
+  }
+
+  double? _readCachedValue(String key) {
+    final cached = _elevationCache[key];
+    if (cached == null) return null;
+    if (DateTime.now().isAfter(cached.expiresAt)) {
+      _elevationCache.remove(key);
+      return null;
+    }
+    return cached.value;
+  }
+
+  String _cacheKey(LatLng point) {
+    return '${point.latitude.toStringAsFixed(5)},${point.longitude.toStringAsFixed(5)}';
+  }
+
+  void dispose() {
+    if (_ownsHttpClient) {
+      _httpClient.close();
+    }
+  }
+}
+
+class _CachedElevation {
+  final double value;
+  final DateTime expiresAt;
+
+  const _CachedElevation({required this.value, required this.expiresAt});
+}

lib/services/message_retry_service.dart

@@ -234,7 +234,11 @@ class MessageRetryService extends ChangeNotifier {
     }
   }
 
-  void updateMessageFromSent(Uint8List ackHash, int timeoutMs) {
+  bool updateMessageFromSent(
+    Uint8List ackHash,
+    int timeoutMs, {
+    bool allowQueueFallback = true,
+  }) {
     final ackHashHex = ackHash
         .map((b) => b.toRadixString(16).padLeft(2, '0'))
         .join();
@@ -277,7 +281,7 @@ class MessageRetryService extends ChangeNotifier {
     }
 
     // FALLBACK: Old queue-based matching (for messages sent before hash computation was added)
-    if (messageId == null) {
+    if (messageId == null && allowQueueFallback) {
       _debugLogService?.warn(
         'RESP_CODE_SENT: ACK hash $ackHashHex not found in hash table, falling back to queue',
         tag: 'AckHash',
@@ -320,7 +324,7 @@ class MessageRetryService extends ChangeNotifier {
 
     if (messageId == null || contact == null) {
       debugPrint('No pending message found for ACK hash: $ackHashHex');
-      return;
+      return false;
     }
 
     // Store the mapping for future lookups (e.g., when ACK arrives)
@@ -339,7 +343,7 @@ class MessageRetryService extends ChangeNotifier {
         'Message $messageId no longer pending for ACK hash: $ackHashHex',
       );
       _ackHashToMessageId.remove(ackHashHex);
-      return;
+      return false;
     }
 
     // Add this ACK hash to the list of expected ACKs for this message (for history)
@@ -389,8 +393,11 @@ class MessageRetryService extends ChangeNotifier {
 
     _startTimeoutTimer(messageId, actualTimeout);
     debugPrint('Updated message $messageId with ACK hash: $ackHashHex');
+    return true;
   }
 
+  bool get hasPendingMessages => _pendingMessages.isNotEmpty;
+
   void _startTimeoutTimer(String messageId, int timeoutMs) {
     _timeoutTimers[messageId]?.cancel();
     _timeoutTimers[messageId] = Timer(Duration(milliseconds: timeoutMs), () {

lib/services/notification_service.dart

@@ -1,9 +1,11 @@
+import 'dart:io' show Platform, File;
 import 'dart:ui';
 
 import 'package:flutter_local_notifications/flutter_local_notifications.dart';
 import 'package:flutter/foundation.dart';
 
 import '../l10n/app_localizations.dart';
+import '../utils/platform_info.dart';
 
 class NotificationService {
   static final NotificationService _instance = NotificationService._internal();
@@ -58,13 +60,32 @@ class NotificationService {
       requestBadgePermission: true,
       requestSoundPermission: true,
     );
+    const windowsSettings = WindowsInitializationSettings(
+      appName: 'MeshCore Open',
+      appUserModelId: 'org.meshcore.open.app',
+      guid: 'e7ea8f85-72f5-4f36-91f6-038f740ccf86',
+    );
+    const linuxSettings = LinuxInitializationSettings(
+      defaultActionName: 'Open notification',
+    );
 
     const initSettings = InitializationSettings(
       android: androidSettings,
       iOS: iosSettings,
       macOS: macSettings,
+      windows: windowsSettings,
+      linux: linuxSettings,
     );
 
+    // On Linux, the notifications plugin opens a D-Bus session bus
+    // connection whose async subscription can throw an unhandled
+    // SocketException when the bus socket is missing (e.g. running as
+    // root or inside a container without a session bus).
+    if (PlatformInfo.isLinux && !_isDbusSessionAvailable()) {
+      debugPrint('Skipping notification init: D-Bus session bus unavailable');
+      return;
+    }
+
     try {
       await _notifications.initialize(
         settings: initSettings,
@@ -76,6 +97,23 @@ class NotificationService {
     }
   }
 
+  static bool _isDbusSessionAvailable() {
+    final addr = Platform.environment['DBUS_SESSION_BUS_ADDRESS'];
+    if (addr != null && addr.isNotEmpty) return true;
+    // Fallback: check the default socket for the current user.
+    final uid = Platform.environment['UID'] ??
+        Platform.environment['EUID'];
+    final path = '/run/user/${uid ?? '1000'}/bus';
+    return File(path).existsSync();
+  }
+
+  Future<bool> _ensureInitialized() async {
+    if (!_isInitialized) {
+      await initialize();
+    }
+    return _isInitialized;
+  }
+
   Future<bool> requestPermissions() async {
     if (!_isInitialized) {
       await initialize();
@@ -114,9 +152,7 @@ class NotificationService {
     String? contactId,
     int? badgeCount,
   }) async {
-    if (!_isInitialized) {
+    if (!await _ensureInitialized()) return;
-      await initialize();
-    }
 
     final androidDetails = AndroidNotificationDetails(
       'messages',
@@ -148,13 +184,17 @@ class NotificationService {
       macOS: macDetails,
     );
 
-    await _notifications.show(
+    try {
-      id: contactId?.hashCode ?? 0,
+      await _notifications.show(
-      title: contactName,
+        id: contactId?.hashCode ?? 0,
-      body: message,
+        title: contactName,
-      notificationDetails: notificationDetails,
+        body: message,
-      payload: 'message:$contactId',
+        notificationDetails: notificationDetails,
-    );
+        payload: 'message:$contactId',
+      );
+    } catch (e) {
+      debugPrint('Failed to show message notification: $e');
+    }
   }
 
   Future<void> _showAdvertNotificationImpl({
@@ -162,9 +202,7 @@ class NotificationService {
     required String contactType,
     String? contactId,
   }) async {
-    if (!_isInitialized) {
+    if (!await _ensureInitialized()) return;
-      await initialize();
-    }
 
     const androidDetails = AndroidNotificationDetails(
       'adverts',
@@ -193,13 +231,17 @@ class NotificationService {
       macOS: macDetails,
     );
 
-    await _notifications.show(
+    try {
-      id: contactId?.hashCode ?? DateTime.now().millisecondsSinceEpoch,
+      await _notifications.show(
-      title: _l10n.notification_newTypeDiscovered(contactType),
+        id: contactId?.hashCode ?? DateTime.now().millisecondsSinceEpoch,
-      body: contactName,
+        title: _l10n.notification_newTypeDiscovered(contactType),
-      notificationDetails: notificationDetails,
+        body: contactName,
-      payload: 'advert:$contactId',
+        notificationDetails: notificationDetails,
-    );
+        payload: 'advert:$contactId',
+      );
+    } catch (e) {
+      debugPrint('Failed to show advert notification: $e');
+    }
   }
 
   Future<void> _showChannelMessageNotificationImpl({
@@ -208,9 +250,7 @@ class NotificationService {
     int? channelIndex,
     int? badgeCount,
   }) async {
-    if (!_isInitialized) {
+    if (!await _ensureInitialized()) return;
-      await initialize();
-    }
 
     final androidDetails = AndroidNotificationDetails(
       'channel_messages',
@@ -247,13 +287,17 @@ class NotificationService {
         ? _l10n.notification_receivedNewMessage
         : preview;
 
-    await _notifications.show(
+    try {
-      id: channelIndex?.hashCode ?? DateTime.now().millisecondsSinceEpoch,
+      await _notifications.show(
-      title: channelName,
+        id: channelIndex?.hashCode ?? DateTime.now().millisecondsSinceEpoch,
-      body: body,
+        title: channelName,
-      notificationDetails: notificationDetails,
+        body: body,
-      payload: 'channel:$channelIndex',
+        notificationDetails: notificationDetails,
-    );
+        payload: 'channel:$channelIndex',
+      );
+    } catch (e) {
+      debugPrint('Failed to show channel notification: $e');
+    }
   }
 
   /// Returns a privacy-safe identifier for debug logging.
@@ -396,35 +440,39 @@ class NotificationService {
   Future<void> _showNotificationImmediately(
     _PendingNotification notification,
   ) async {
-    switch (notification.type) {
+    try {
-      case _NotificationType.message:
+      switch (notification.type) {
-        await _showMessageNotificationImpl(
+        case _NotificationType.message:
-          contactName: notification.title,
+          await _showMessageNotificationImpl(
-          message: notification.body,
+            contactName: notification.title,
-          contactId: notification.id,
+            message: notification.body,
-          badgeCount: notification.badgeCount,
+            contactId: notification.id,
-        );
+            badgeCount: notification.badgeCount,
-        break;
+          );
-      case _NotificationType.advert:
+          break;
-        await _showAdvertNotificationImpl(
+        case _NotificationType.advert:
-          contactName: notification.body,
+          await _showAdvertNotificationImpl(
-          contactType: notification.title,
+            contactName: notification.body,
-          contactId: notification.id,
+            contactType: notification.title,
-        );
+            contactId: notification.id,
-        break;
+          );
-      case _NotificationType.channelMessage:
+          break;
-        await _showChannelMessageNotificationImpl(
+        case _NotificationType.channelMessage:
-          channelName: notification.title,
+          await _showChannelMessageNotificationImpl(
-          message: notification.body,
+            channelName: notification.title,
-          channelIndex: int.tryParse(notification.id ?? ''),
+            message: notification.body,
-          badgeCount: notification.badgeCount,
+            channelIndex: int.tryParse(notification.id ?? ''),
-        );
+            badgeCount: notification.badgeCount,
-        break;
+          );
+          break;
+      }
+    } catch (e) {
+      debugPrint('Failed to show immediate notification: $e');
     }
   }
 
   Future<void> _showBatchSummary(List<_PendingNotification> batch) async {
-    if (!_isInitialized) await initialize();
+    if (!await _ensureInitialized()) return;
 
     // Group by type
     final messages = batch
@@ -468,13 +516,17 @@ class NotificationService {
 
     const notificationDetails = NotificationDetails(android: androidDetails);
 
-    await _notifications.show(
+    try {
-      id: 'batch_summary'.hashCode,
+      await _notifications.show(
-      title: _l10n.notification_activityTitle,
+        id: 'batch_summary'.hashCode,
-      body: parts.join(', '),
+        title: _l10n.notification_activityTitle,
-      notificationDetails: notificationDetails,
+        body: parts.join(', '),
-      payload: 'batch',
+        notificationDetails: notificationDetails,
-    );
+        payload: 'batch',
+      );
+    } catch (e) {
+      debugPrint('Failed to show batch summary notification: $e');
+    }
   }
 }
 

lib/services/path_history_service.dart

@@ -15,6 +15,9 @@ class PathHistoryService extends ChangeNotifier {
   final List<String> _cacheAccessOrder = [];
 
   static const int _maxHistoryEntries = 100;
+
+  int _version = 0;
+  int get version => _version;
   static const int _autoRotationTopCount = 3;
 
   PathHistoryService(this._storage);
@@ -185,6 +188,7 @@ class PathHistoryService extends ChangeNotifier {
   ) {
     var history = _cache[contactPubKeyHex];
     if (history == null) return;
+    _version++;
 
     final existing = _findPathRecord(contactPubKeyHex, pathBytes);
     if (existing != null) {
@@ -241,6 +245,7 @@ class PathHistoryService extends ChangeNotifier {
         _cache[contactPubKeyHex] = loaded;
         _trackAccess(contactPubKeyHex);
         _evictIfNeeded();
+        _version++;
         notifyListeners();
       }
     });
@@ -276,6 +281,7 @@ class PathHistoryService extends ChangeNotifier {
     _autoRotationIndex.remove(contactPubKeyHex);
     _floodStats.remove(contactPubKeyHex);
     await _storage.clearPathHistory(contactPubKeyHex);
+    _version++;
     notifyListeners();
   }
 
@@ -295,6 +301,7 @@ class PathHistoryService extends ChangeNotifier {
     );
 
     await _storage.savePathHistory(contactPubKeyHex, _cache[contactPubKeyHex]!);
+    _version++;
     notifyListeners();
   }
 

lib/services/usb_serial_frame_codec.dart

@@ -0,0 +1,111 @@
+import 'dart:typed_data';
+
+const int usbSerialTxFrameStart = 0x3c;
+const int usbSerialRxFrameStart = 0x3e;
+const int usbSerialHeaderLength = 3;
+const int usbSerialMaxPayloadLength = 172;
+
+Uint8List wrapUsbSerialTxFrame(Uint8List payload) {
+  if (payload.length > usbSerialMaxPayloadLength) {
+    throw ArgumentError.value(
+      payload.length,
+      'payload.length',
+      'USB serial payload exceeds $usbSerialMaxPayloadLength bytes',
+    );
+  }
+  final packet = Uint8List(usbSerialHeaderLength + payload.length);
+  packet[0] = usbSerialTxFrameStart;
+  packet[1] = payload.length & 0xff;
+  packet[2] = (payload.length >> 8) & 0xff;
+  packet.setRange(usbSerialHeaderLength, packet.length, payload);
+  return packet;
+}
+
+class UsbSerialDecodedPacket {
+  const UsbSerialDecodedPacket({
+    required this.frameStart,
+    required this.payload,
+  });
+
+  final int frameStart;
+  final Uint8List payload;
+
+  bool get isRxFrame => frameStart == usbSerialRxFrameStart;
+}
+
+class UsbSerialFrameDecoder {
+  final List<int> _rxBuffer = <int>[];
+  int _startIndex = 0;
+
+  void reset() {
+    _rxBuffer.clear();
+    _startIndex = 0;
+  }
+
+  List<UsbSerialDecodedPacket> ingest(Uint8List bytes) {
+    if (bytes.isEmpty) {
+      return const <UsbSerialDecodedPacket>[];
+    }
+
+    _rxBuffer.addAll(bytes);
+    final packets = <UsbSerialDecodedPacket>[];
+
+    while (true) {
+      if (_startIndex >= _rxBuffer.length) {
+        _rxBuffer.clear();
+        _startIndex = 0;
+        return packets;
+      }
+
+      if (_rxBuffer[_startIndex] != usbSerialRxFrameStart &&
+          _rxBuffer[_startIndex] != usbSerialTxFrameStart) {
+        _startIndex++;
+        _compactBufferIfNeeded();
+        continue;
+      }
+
+      final availableLength = _rxBuffer.length - _startIndex;
+      if (availableLength < usbSerialHeaderLength) {
+        _compactBufferIfNeeded(force: true);
+        return packets;
+      }
+
+      final payloadLength =
+          _rxBuffer[_startIndex + 1] | (_rxBuffer[_startIndex + 2] << 8);
+      if (payloadLength > usbSerialMaxPayloadLength) {
+        _startIndex++;
+        _compactBufferIfNeeded();
+        continue;
+      }
+      final packetLength = usbSerialHeaderLength + payloadLength;
+      if (availableLength < packetLength) {
+        _compactBufferIfNeeded(force: true);
+        return packets;
+      }
+
+      final frameStart = _rxBuffer[_startIndex];
+      final payload = Uint8List.fromList(
+        _rxBuffer.sublist(
+          _startIndex + usbSerialHeaderLength,
+          _startIndex + packetLength,
+        ),
+      );
+      _startIndex += packetLength;
+      _compactBufferIfNeeded();
+      packets.add(
+        UsbSerialDecodedPacket(frameStart: frameStart, payload: payload),
+      );
+    }
+  }
+
+  void _compactBufferIfNeeded({bool force = false}) {
+    if (_startIndex == 0) {
+      return;
+    }
+    if (!force && _startIndex < 1024 && _startIndex < (_rxBuffer.length ~/ 2)) {
+      return;
+    }
+    _rxBuffer.removeRange(0, _startIndex);
+    _startIndex = 0;
+  }
+}

lib/services/usb_serial_service.dart

@@ -0,0 +1,2 @@
+export 'usb_serial_service_native.dart'
+    if (dart.library.js_interop) 'usb_serial_service_web.dart';

lib/services/usb_serial_service_native.dart

@@ -0,0 +1,463 @@
+import 'dart:async';
+import 'dart:io';
+
+import 'package:flserial/flserial.dart';
+import 'package:flserial/flserial_exception.dart';
+import 'package:flutter/foundation.dart';
+import 'package:flutter/services.dart';
+
+import 'app_debug_log_service.dart';
+import '../utils/macos_usb_device_names.dart';
+import '../utils/platform_info.dart';
+import '../utils/usb_port_labels.dart';
+import 'usb_serial_frame_codec.dart';
+
+/// Wraps the native flserial plugin to expose a stream of raw bytes for the
+/// MeshCore connector to consume.
+class UsbSerialService {
+  UsbSerialService();
+
+  static const MethodChannel _androidMethodChannel = MethodChannel(
+    'meshcore_open/android_usb_serial',
+  );
+  static const EventChannel _androidEventChannel = EventChannel(
+    'meshcore_open/android_usb_serial_events',
+  );
+  final StreamController<Uint8List> _frameController =
+      StreamController<Uint8List>.broadcast();
+  final UsbSerialFrameDecoder _frameDecoder = UsbSerialFrameDecoder();
+  StreamSubscription<dynamic>? _androidDataSubscription;
+  StreamSubscription<FlSerialEventArgs>? _dataSubscription;
+  UsbSerialStatus _status = UsbSerialStatus.disconnected;
+  String? _connectedPortKey;
+  String? _connectedPortLabel;
+  FlSerial? _serial;
+  AppDebugLogService? _debugLogService;
+
+  UsbSerialStatus get status => _status;
+  String? get activePortKey => _connectedPortKey;
+  String? get activePortDisplayLabel =>
+      _connectedPortLabel ?? _connectedPortKey;
+  Stream<Uint8List> get frameStream => _frameController.stream;
+  bool get _useAndroidUsbHost =>
+      !kIsWeb && defaultTargetPlatform == TargetPlatform.android;
+  bool get _useDesktopFlSerial =>
+      PlatformInfo.isWindows || PlatformInfo.isLinux || PlatformInfo.isMacOS;
+  bool get _isSupportedPlatform => _useAndroidUsbHost || _useDesktopFlSerial;
+  // Always-fresh: do NOT use ??= here – a cached FlSerial retains stale
+  // native handle state (flh) from a prior failed open, causing subsequent
+  // open attempts to fail with "port not exist" even when the device is present.
+  FlSerial _freshSerial() => FlSerial();
+
+  bool get isConnected {
+    if (!_isSupportedPlatform) {
+      return false;
+    }
+    // Trust _status as the authoritative connection state. Polling
+    // _serial?.isOpen() via the native FL_CTRL_IS_PORT_OPEN query is
+    // unreliable during the brief USB re-enumeration window that many
+    // microcontrollers (e.g. NRF52) trigger in response to DTR assertion.
+    // Actual port drops are handled by the onDone / onError callbacks on the
+    // serial data stream subscription, which update _status correctly.
+    return _status == UsbSerialStatus.connected;
+  }
+
+  Future<List<String>> listPorts() async {
+    if (!_isSupportedPlatform) {
+      return const <String>[];
+    }
+    if (_useAndroidUsbHost) {
+      final ports = await _androidMethodChannel.invokeListMethod<String>(
+        'listPorts',
+      );
+      return ports ?? <String>[];
+    }
+    final rawPorts = FlSerial.listPorts();
+    // On macOS, flserial's native device-name lookup is broken on macOS
+    // 10.15+ because the IOKit class name changed from IOUSBDevice to
+    // IOUSBHostDevice. We resolve names ourselves via ioreg and rewrite any
+    // "port - n/a" entries with the real product name.
+    if (Platform.isMacOS && rawPorts.isNotEmpty) {
+      return _annotateMacOsPorts(rawPorts);
+    }
+    return Future.value(rawPorts);
+  }
+
+  /// Rewrites the flserial port list on macOS by substituting real USB device
+  /// names (obtained via [ioreg]) for the "n/a" placeholders that flserial
+  /// returns when it can't find the deprecated IOUSBDevice parent.
+  Future<List<String>> _annotateMacOsPorts(List<String> rawPorts) async {
+    final deviceNames = await queryMacOsUsbDeviceNames();
+    if (deviceNames.isEmpty) return rawPorts;
+    return rawPorts.map((entry) {
+      // entry format from fl_ports: "port - description - hardware_id"
+      final port = normalizeUsbPortName(entry); // e.g. /dev/cu.usbmodem1101
+      final knownName = deviceNames[port]; // e.g. "Nordic NRF52 DK"
+      if (knownName == null) return entry; // non-USB port, keep as-is
+      // Replace description field only; preserve hardware_id for device
+      // identity (used by normalizeUsbPortName).
+      final segments = entry.split(' - ');
+      final hardwareId = segments.length >= 3 ? segments.last : 'n/a';
+      return '$port - $knownName - $hardwareId';
+    }).toList();
+  }
+
+  void setDebugLogService(AppDebugLogService? service) {
+    _debugLogService = service;
+  }
+
+  Future<void> connect({
+    required String portName,
+    int baudRate = 115200,
+  }) async {
+    if (_status == UsbSerialStatus.connected ||
+        _status == UsbSerialStatus.connecting) {
+      throw StateError('USB serial transport is already active');
+    }
+    if (!_isSupportedPlatform) {
+      throw UnsupportedError('USB serial is not supported on this platform.');
+    }
+
+    _status = UsbSerialStatus.connecting;
+    var normalizedPortName = normalizeUsbPortName(portName);
+    _frameDecoder.reset();
+
+    if (_useAndroidUsbHost) {
+      try {
+        await _androidMethodChannel.invokeMethod<void>('connect', {
+          'portName': normalizedPortName,
+          'baudRate': baudRate,
+        });
+        _debugLogService?.info(
+          'USB serial opened port=$normalizedPortName on Android via USB host bridge',
+          tag: 'USB Serial',
+        );
+      } on PlatformException catch (error) {
+        _status = UsbSerialStatus.disconnected;
+        final msg = error.message ?? error.code;
+        _debugLogService?.error(
+          'Android connect failed: $msg',
+          tag: 'USB Serial',
+        );
+        rethrow;
+      }
+    } else {
+      // ── Hot-restart guard ─────────────────────────────────────────────────
+      // On hot restart Dart tears down the isolate without calling dispose().
+      // The NativeCallable registered by flserial's setCallback() is
+      // isolate-local and gets freed when the isolate dies, but the native
+      // SerialThread is still alive and will call it → crash.
+      //
+      // flserial uses process-global native state. Calling fl_free() kills ALL
+      // SerialThreads for every open port across all Dart isolates (there is
+      // only one in a Flutter app). Then fl_init() re-initialises the slot
+      // table so subsequent fl_open() calls work normally.
+      //
+      // This must happen before we register any new NativeCallable, so it must
+      // be the very first thing we do in the desktop branch.
+      try {
+        bindings.fl_free();
+        bindings.fl_init(16);
+      } catch (_) {}
+
+      // On macOS, flserial lists both cu.* and tty.* device nodes.
+      // When a cu.* open fails with FL_ERROR_PORT_NOT_EXIST, try the tty.*
+      // variant as a fallback (and vice-versa) before giving up.
+      final candidates = _buildPortCandidates(normalizedPortName);
+      FlSerialException? lastError;
+      bool opened = false;
+
+      for (final candidate in candidates) {
+        // Always create a fresh FlSerial instance — a cached instance retains
+        // a stale flh handle from prior failed opens, which causes the native
+        // fl_open() to mis-route the request and report port-not-exist even
+        // when the device node is physically present.
+        final serial = _freshSerial();
+        serial.init();
+        try {
+          final openStatus = serial.openPort(candidate, baudRate);
+          if (openStatus != FlOpenStatus.open) {
+            final msg =
+                'Failed to open USB port $candidate (status: $openStatus)';
+            _debugLogService?.error(msg, tag: 'USB Serial');
+            // Not a FlSerialException — treat as terminal failure
+            _status = UsbSerialStatus.disconnected;
+            throw StateError(msg);
+          }
+          serial.setByteSize8();
+          serial.setBitParityNone();
+          serial.setStopBits1();
+          serial.setFlowControlNone();
+          serial.setRTS(false);
+          serial.setDTR(true);
+          _serial = serial;
+          // Update the normalized port name to whichever candidate succeeded.
+          normalizedPortName = candidate;
+          _debugLogService?.info(
+            'USB serial opened port=$candidate cts=${serial.getCTS()} dsr=${serial.getDSR()} dtr=true rts=false',
+            tag: 'USB Serial',
+          );
+          opened = true;
+          break;
+        } on FlSerialException catch (error) {
+          // The native fl_open() already called fl_close() on failure
+          // internally, so no extra cleanup is needed here for this candidate.
+          _debugLogService?.warn(
+            'Failed to open $candidate: ${error.msg} (code ${error.error})',
+            tag: 'USB Serial',
+          );
+          lastError = error;
+          // Try next candidate
+        } catch (error, stackTrace) {
+          _status = UsbSerialStatus.disconnected;
+          _debugLogService?.error(
+            'Unexpected error opening $candidate: $error\n$stackTrace',
+            tag: 'USB Serial',
+          );
+          rethrow;
+        }
+      }
+
+      if (!opened) {
+        _status = UsbSerialStatus.disconnected;
+        final primary = candidates.first;
+        final msg = lastError != null
+            ? 'Failed to open USB port $primary: ${lastError.msg} (code ${lastError.error})'
+            : 'Failed to open USB port $primary';
+        _debugLogService?.error(msg, tag: 'USB Serial');
+        throw StateError(msg);
+      }
+    }
+
+    _connectedPortKey = normalizedPortName;
+    _connectedPortLabel = normalizedPortName;
+    if (_useAndroidUsbHost) {
+      _androidDataSubscription = _androidEventChannel
+          .receiveBroadcastStream()
+          .listen(
+            _handleAndroidData,
+            onError: _handleSerialError,
+            onDone: _handleSerialDone,
+          );
+    } else {
+      _dataSubscription = _serial!.onSerialData.stream.listen(
+        _handleSerialData,
+        onError: _handleSerialError,
+        onDone: _handleSerialDone,
+      );
+    }
+    _status = UsbSerialStatus.connected;
+  }
+
+  Future<void> write(Uint8List data) async {
+    if (!isConnected) {
+      throw StateError('USB serial port is not open');
+    }
+    final packet = wrapUsbSerialTxFrame(data);
+    _logFrameSummary('USB TX frame', data);
+    if (_useAndroidUsbHost) {
+      try {
+        await _androidMethodChannel.invokeMethod<void>('write', {
+          'data': packet,
+        });
+      } on PlatformException catch (error) {
+        throw StateError(error.message ?? error.code);
+      }
+    } else {
+      _serial!.write(packet);
+    }
+  }
+
+  Future<void> disconnect() async {
+    if (_status == UsbSerialStatus.disconnected) return;
+
+    final portLabel = _connectedPortLabel ?? _connectedPortKey;
+    _debugLogService?.info(
+      'USB disconnect starting port=${portLabel ?? 'unknown'}',
+      tag: 'USB Serial',
+    );
+    _status = UsbSerialStatus.disconnecting;
+    _connectedPortKey = null;
+    _connectedPortLabel = null;
+    _frameDecoder.reset();
+
+    if (_useAndroidUsbHost) {
+      await _androidDataSubscription?.cancel();
+      _androidDataSubscription = null;
+      try {
+        await _androidMethodChannel.invokeMethod<void>('disconnect');
+      } catch (_) {
+        // Ignore errors while closing.
+      }
+    } else {
+      // IMPORTANT: Close and free the native port FIRST, before cancelling the
+      // Dart subscription. The native SerialThread is blocked on a read(); once
+      // closePort() is called it unblocks and the thread exits.  If we cancel
+      // the Dart subscription first (freeing the FFI callback pointer) and the
+      // thread fires one final callback before noticing the port is gone, Dart
+      // crashes with "Callback invoked after it has been deleted".
+      final serial = _serial;
+      _serial = null;
+      try {
+        if (serial?.isOpen() == FlOpenStatus.open) {
+          serial?.closePort();
+        }
+      } catch (_) {
+        // Ignore errors while closing.
+      }
+      // Note: we do NOT call free() here; that would globally reset native
+      // state for all ports. The global reset is done in connect() instead,
+      // before the next open, which is the safer place to do it.
+
+      // Now it is safe to cancel the Dart subscription — the native thread has
+      // already seen the port close and will not fire any more callbacks.
+      await _dataSubscription?.cancel();
+      _dataSubscription = null;
+    }
+    _status = UsbSerialStatus.disconnected;
+    _debugLogService?.info(
+      'USB disconnect complete port=${portLabel ?? 'unknown'}',
+      tag: 'USB Serial',
+    );
+  }
+
+  void setRequestPortLabel(String label) {
+    // Native implementations do not use a synthetic chooser row.
+  }
+
+  void setFallbackDeviceName(String label) {
+    // Native implementations use OS-provided device names.
+  }
+
+  void updateConnectedLabel(String label) {
+    final trimmed = label.trim();
+    if (trimmed.isEmpty) {
+      return;
+    }
+    _connectedPortLabel = buildUsbDisplayLabel(
+      basePortLabel: _connectedPortKey ?? trimmed,
+      deviceName: trimmed,
+    );
+  }
+
+  void dispose() {
+    // Synchronously close the native port so the SerialThread exits before
+    // the Dart isolate is torn down (e.g. on hot restart). The async
+    // disconnect() path via unawaited() offers no ordering guarantee — the
+    // isolate may die before the Future resolves, leaving the thread alive
+    // with a dangling NativeCallable pointer.
+    if (_useDesktopFlSerial) {
+      final serial = _serial;
+      try {
+        if (serial?.isOpen() == FlOpenStatus.open) {
+          serial?.closePort(); // synchronous C call — kills the SerialThread
+        }
+      } catch (_) {}
+    }
+    // Kick off the full async teardown for anything else (subscription cancel,
+    // stream controller close). These are best-effort at dispose time.
+    unawaited(disconnect().whenComplete(_closeFrameController));
+  }
+
+  void _handleSerialData(FlSerialEventArgs event) {
+    try {
+      final bytes = event.serial.readList();
+      if (bytes.isNotEmpty) {
+        _ingestRawBytes(Uint8List.fromList(bytes));
+      }
+    } catch (error, stack) {
+      _addFrameError(error, stack);
+    }
+  }
+
+  void _handleAndroidData(dynamic data) {
+    if (data is Uint8List) {
+      _ingestRawBytes(data);
+      return;
+    }
+    if (data is ByteData) {
+      _ingestRawBytes(data.buffer.asUint8List());
+      return;
+    }
+    _addFrameError(
+      StateError('Unexpected Android USB event payload: ${data.runtimeType}'),
+    );
+  }
+
+  void _handleSerialError(Object error, [StackTrace? stackTrace]) {
+    _addFrameError(error, stackTrace);
+  }
+
+  void _handleSerialDone() {
+    unawaited(disconnect());
+  }
+
+  void _ingestRawBytes(Uint8List bytes) {
+    for (final packet in _frameDecoder.ingest(bytes)) {
+      if (!packet.isRxFrame) {
+        _debugLogService?.info(
+          'USB ignored packet start=0x${packet.frameStart.toRadixString(16).padLeft(2, '0')} len=${packet.payload.length}',
+          tag: 'USB Serial',
+        );
+        continue;
+      }
+      _addFrame(packet.payload);
+    }
+  }
+
+  void _addFrame(Uint8List payload) {
+    if (_frameController.isClosed) {
+      return;
+    }
+    _frameController.add(payload);
+  }
+
+  void _addFrameError(Object error, [StackTrace? stackTrace]) {
+    if (_frameController.isClosed) {
+      return;
+    }
+    _frameController.addError(error, stackTrace);
+  }
+
+  Future<void> _closeFrameController() async {
+    if (_frameController.isClosed) {
+      return;
+    }
+    await _frameController.close();
+  }
+
+  void _logFrameSummary(String prefix, Uint8List bytes) {
+    if (bytes.isEmpty) {
+      _debugLogService?.info('$prefix len=0', tag: 'USB Serial');
+      return;
+    }
+    _debugLogService?.info(
+      '$prefix code=${bytes[0]} len=${bytes.length}',
+      tag: 'USB Serial',
+    );
+  }
+
+  /// Returns an ordered list of port paths to try for [portName].
+  ///
+  /// On macOS, USB serial devices appear as both `/dev/cu.*` (call-out, the
+  /// correct mode for outgoing serial connections) and `/dev/tty.*` (dial-in).
+  /// `flserial` may list one variant while only the other is actually openable
+  /// at a given moment. We prefer `cu.*` but automatically include the `tty.*`
+  /// sibling as a fallback, and vice-versa.
+  List<String> _buildPortCandidates(String normalizedPort) {
+    if (!Platform.isMacOS) return [normalizedPort];
+    const cuPrefix = '/dev/cu.';
+    const ttyPrefix = '/dev/tty.';
+    if (normalizedPort.startsWith(cuPrefix)) {
+      final suffix = normalizedPort.substring(cuPrefix.length);
+      return [normalizedPort, '$ttyPrefix$suffix'];
+    }
+    if (normalizedPort.startsWith(ttyPrefix)) {
+      final suffix = normalizedPort.substring(ttyPrefix.length);
+      return [normalizedPort, '$cuPrefix$suffix'];
+    }
+    return [normalizedPort];
+  }
+}
+
+enum UsbSerialStatus { disconnected, connecting, connected, disconnecting }

lib/services/usb_serial_service_web.dart

@@ -0,0 +1,557 @@
+import 'dart:async';
+import 'dart:js_interop';
+import 'dart:js_interop_unsafe';
+
+import 'package:flutter/foundation.dart';
+import 'package:web/web.dart' as web;
+
+import 'app_debug_log_service.dart';
+import '../utils/usb_port_labels.dart';
+import 'usb_serial_frame_codec.dart';
+
+class UsbSerialService {
+  UsbSerialService();
+
+  static const Map<String, String> _knownUsbNames = <String, String>{
+    '2886:1667': 'Seeed Wio Tracker L1',
+  };
+  static final Map<String, String> _deviceNamesByPortKey = <String, String>{};
+  static final Map<String, String> _baseLabelsByPortKey = <String, String>{};
+  static final Map<String, JSObject> _authorizedPortsByKey =
+      <String, JSObject>{};
+  static int _nextAuthorizedPortId = 1;
+
+  final StreamController<Uint8List> _frameController =
+      StreamController<Uint8List>.broadcast();
+  final UsbSerialFrameDecoder _frameDecoder = UsbSerialFrameDecoder();
+
+  UsbSerialStatus _status = UsbSerialStatus.disconnected;
+  JSObject? _port;
+  JSObject? _reader;
+  JSObject? _writer;
+  String? _connectedPortName;
+  String? _connectedPortKey;
+  String _requestPortLabel = 'Choose USB Device';
+  String _fallbackDeviceName = 'Web Serial Device';
+  AppDebugLogService? _debugLogService;
+
+  UsbSerialStatus get status => _status;
+  String? get activePortKey => _connectedPortKey;
+  String? get activePortDisplayLabel => _connectedPortName ?? _connectedPortKey;
+  Stream<Uint8List> get frameStream => _frameController.stream;
+  bool get isConnected => _status == UsbSerialStatus.connected;
+
+  JSObject get _navigator => JSObject.fromInteropObject(web.window.navigator);
+  bool get _isSupported => _navigator.has('serial');
+  JSObject? get _serial {
+    if (!_isSupported) {
+      return null;
+    }
+    final serial = _navigator['serial'];
+    return serial == null ? null : serial as JSObject;
+  }
+
+  Future<List<String>> listPorts() async {
+    if (!_isSupported) {
+      return const <String>[];
+    }
+
+    _resetPortCache();
+    final ports = await _getAuthorizedPorts();
+    return <String>[_requestPortListEntry, ...ports.map(_listEntryForPort)];
+  }
+
+  Future<void> connect({
+    required String portName,
+    int baudRate = 115200,
+  }) async {
+    if (_status == UsbSerialStatus.connected ||
+        _status == UsbSerialStatus.connecting) {
+      throw StateError('USB serial transport is already active');
+    }
+    if (!_isSupported) {
+      throw UnsupportedError('Web Serial is not supported by this browser.');
+    }
+
+    _status = UsbSerialStatus.connecting;
+    _frameDecoder.reset();
+
+    try {
+      final requestedPortName = normalizeUsbPortName(portName);
+      _debugLogService?.info(
+        'Web connect: requested=$requestedPortName baud=$baudRate',
+        tag: 'USB Serial',
+      );
+      final selectedPortKey = requestedPortName.startsWith('web:port:')
+          ? requestedPortName
+          : null;
+      _port = _authorizedPortsByKey[requestedPortName];
+      final authorizedPorts = await _getAuthorizedPorts();
+      _debugLogService?.info(
+        'Web connect: ${authorizedPorts.length} authorized port(s), cached=${_port != null}',
+        tag: 'USB Serial',
+      );
+      _port ??= _selectPort(authorizedPorts, requestedPortName);
+
+      _port ??= await _requestPort();
+      if (_port == null) {
+        throw StateError('No USB serial device selected');
+      }
+
+      _debugLogService?.info(
+        'Web connect: opening port at $baudRate baud…',
+        tag: 'USB Serial',
+      );
+      await _openPort(_port!, baudRate);
+      _connectedPortKey = _cachePort(_port!, preferredKey: selectedPortKey);
+      _connectedPortName = _displayLabelForPort(
+        _port!,
+        portKey: _connectedPortKey,
+      );
+      _writer = _getWriter(_port!);
+      _reader = _getReader(_port!);
+      _status = UsbSerialStatus.connected;
+      unawaited(_pumpReads());
+
+      _debugLogService?.info(
+        'USB serial opened port=$_connectedPortName via Web Serial',
+        tag: 'USB Serial',
+      );
+    } catch (error) {
+      _debugLogService?.error(
+        'Web connect failed: $error',
+        tag: 'USB Serial',
+      );
+      await _cleanupFailedConnect();
+      _status = UsbSerialStatus.disconnected;
+      _connectedPortName = null;
+      _connectedPortKey = null;
+      rethrow;
+    }
+  }
+
+  Future<void> write(Uint8List data) async {
+    if (!isConnected || _writer == null) {
+      throw StateError('USB serial port is not open');
+    }
+
+    final packet = wrapUsbSerialTxFrame(data);
+    _logFrameSummary('USB TX frame', data);
+
+    final promise = _writer!.callMethod<JSPromise<JSAny?>>(
+      'write'.toJS,
+      packet.toJS,
+    );
+    await promise.toDart;
+  }
+
+  Future<void> disconnect() async {
+    if (_status == UsbSerialStatus.disconnected) return;
+
+    final portLabel = _connectedPortName ?? _connectedPortKey;
+    _debugLogService?.info(
+      'USB disconnect starting port=${portLabel ?? 'unknown'}',
+      tag: 'USB Serial',
+    );
+    _status = UsbSerialStatus.disconnecting;
+    final reader = _reader;
+    final writer = _writer;
+    final port = _port;
+
+    _reader = null;
+    _writer = null;
+    _port = null;
+    _connectedPortName = null;
+    _connectedPortKey = null;
+    _frameDecoder.reset();
+
+    if (reader != null) {
+      try {
+        await reader.callMethod<JSPromise<JSAny?>>('cancel'.toJS).toDart;
+      } catch (_) {
+        // Ignore errors while closing.
+      }
+      _releaseLock(reader);
+    }
+
+    if (writer != null) {
+      _releaseLock(writer);
+    }
+
+    if (port != null) {
+      try {
+        await port.callMethod<JSPromise<JSAny?>>('close'.toJS).toDart;
+      } catch (_) {
+        // Ignore errors while closing.
+      }
+    }
+
+    _status = UsbSerialStatus.disconnected;
+    _debugLogService?.info(
+      'USB disconnect complete port=${portLabel ?? 'unknown'}',
+      tag: 'USB Serial',
+    );
+  }
+
+  void updateConnectedLabel(String label) {
+    final trimmed = label.trim();
+    final portKey = _connectedPortKey;
+    if (trimmed.isEmpty || portKey == null) {
+      return;
+    }
+    _deviceNamesByPortKey[portKey] = trimmed;
+    _connectedPortName = _buildDisplayLabel(portKey);
+  }
+
+  void setRequestPortLabel(String label) {
+    final trimmed = label.trim();
+    if (trimmed.isEmpty) {
+      return;
+    }
+    _requestPortLabel = trimmed;
+  }
+
+  void setFallbackDeviceName(String label) {
+    final trimmed = label.trim();
+    if (trimmed.isEmpty) {
+      return;
+    }
+    _fallbackDeviceName = trimmed;
+  }
+
+  void setDebugLogService(AppDebugLogService? service) {
+    _debugLogService = service;
+  }
+
+  void dispose() {
+    unawaited(disconnect().whenComplete(_closeFrameController));
+  }
+
+  Future<List<JSObject>> _getAuthorizedPorts() async {
+    final serial = _serial;
+    if (serial == null) {
+      return const <JSObject>[];
+    }
+    final result = await serial
+        .callMethod<JSPromise<JSAny?>>('getPorts'.toJS)
+        .toDart;
+    return _toObjectList(result);
+  }
+
+  Future<JSObject?> _requestPort() async {
+    final serial = _serial;
+    if (serial == null) {
+      return null;
+    }
+    final result = await serial
+        .callMethod<JSPromise<JSAny?>>('requestPort'.toJS)
+        .toDart;
+    return result == null ? null : result as JSObject;
+  }
+
+  JSObject? _selectPort(List<JSObject> ports, String requestedPortName) {
+    if (ports.isEmpty) {
+      return null;
+    }
+    if (requestedPortName.isEmpty || requestedPortName == _requestPortKey) {
+      return ports.first;
+    }
+    if (requestedPortName.startsWith('web:port:')) {
+      return null;
+    }
+    for (final port in ports) {
+      final description = _describePort(port);
+      if (description == requestedPortName) {
+        return port;
+      }
+    }
+    return null;
+  }
+
+  Future<void> _openPort(JSObject port, int baudRate) {
+    final options = JSObject()..['baudRate'] = baudRate.toJS;
+    return port.callMethod<JSPromise<JSAny?>>('open'.toJS, options).toDart;
+  }
+
+  Future<void> _cleanupFailedConnect() async {
+    final reader = _reader;
+    final writer = _writer;
+    final port = _port;
+
+    _reader = null;
+    _writer = null;
+    _port = null;
+
+    if (reader != null) {
+      try {
+        await reader.callMethod<JSPromise<JSAny?>>('cancel'.toJS).toDart;
+      } catch (_) {
+        // Ignore cleanup errors after a failed connect.
+      }
+      _releaseLock(reader);
+    }
+
+    if (writer != null) {
+      _releaseLock(writer);
+    }
+
+    if (port != null) {
+      try {
+        await port.callMethod<JSPromise<JSAny?>>('close'.toJS).toDart;
+      } catch (_) {
+        // Ignore cleanup errors after a failed connect.
+      }
+    }
+  }
+
+  JSObject? _getReader(JSObject port) {
+    final readable = port.getProperty<JSAny?>('readable'.toJS);
+    if (readable == null) {
+      throw StateError('Web Serial port is not readable');
+    }
+    final readableObject = readable as JSObject;
+    return readableObject.callMethod<JSAny?>('getReader'.toJS) as JSObject;
+  }
+
+  JSObject? _getWriter(JSObject port) {
+    final writable = port.getProperty<JSAny?>('writable'.toJS);
+    if (writable == null) {
+      throw StateError('Web Serial port is not writable');
+    }
+    final writableObject = writable as JSObject;
+    return writableObject.callMethod<JSAny?>('getWriter'.toJS) as JSObject;
+  }
+
+  Future<void> _pumpReads() async {
+    final reader = _reader;
+    if (reader == null) return;
+
+    try {
+      while (_status == UsbSerialStatus.connected &&
+          identical(reader, _reader)) {
+        final result = await reader
+            .callMethod<JSPromise<JSAny?>>('read'.toJS)
+            .toDart;
+        if (result == null) {
+          break;
+        }
+        final resultObject = result as JSObject;
+
+        final doneValue = resultObject.getProperty<JSAny?>('done'.toJS);
+        final done = doneValue != null && doneValue.dartify() == true;
+        if (done) {
+          break;
+        }
+
+        final value = resultObject.getProperty<JSAny?>('value'.toJS);
+        final bytes = _coerceBytes(value);
+        if (bytes != null && bytes.isNotEmpty) {
+          _ingestRawBytes(bytes);
+        }
+      }
+    } catch (error, stackTrace) {
+      if (_status == UsbSerialStatus.connected) {
+        _addFrameError(error, stackTrace);
+      }
+    } finally {
+      _releaseLock(reader);
+      if (_status == UsbSerialStatus.connected && identical(reader, _reader)) {
+        _addFrameError(StateError('USB serial connection closed'));
+      }
+    }
+  }
+
+  Uint8List? _coerceBytes(JSAny? value) {
+    if (value == null) return null;
+    try {
+      return (value as JSUint8Array).toDart;
+    } catch (_) {
+      // Fall back to array-like coercion below.
+    }
+
+    final object = value as JSObject;
+    if (object.has('length')) {
+      final lengthValue = object.getProperty<JSAny?>('length'.toJS)?.dartify();
+      if (lengthValue is num) {
+        final length = lengthValue.toInt();
+        final bytes = Uint8List(length);
+        for (var i = 0; i < length; i++) {
+          final item = object.getProperty<JSAny?>(i.toString().toJS)?.dartify();
+          if (item is num) {
+            bytes[i] = item.toInt();
+          }
+        }
+        return bytes;
+      }
+    }
+
+    return null;
+  }
+
+  List<JSObject> _toObjectList(JSAny? value) {
+    if (value == null) {
+      return const <JSObject>[];
+    }
+    final object = value as JSObject;
+    if (!object.has('length')) {
+      return const <JSObject>[];
+    }
+
+    final lengthValue = object.getProperty<JSAny?>('length'.toJS)?.dartify();
+    if (lengthValue is! num) {
+      return const <JSObject>[];
+    }
+
+    final length = lengthValue.toInt();
+    final items = <JSObject>[];
+    for (var i = 0; i < length; i++) {
+      final item = object.getProperty<JSAny?>(i.toString().toJS);
+      if (item != null) {
+        items.add(item as JSObject);
+      }
+    }
+    return items;
+  }
+
+  String _describePort(JSObject port) {
+    final info = _portInfo(port);
+    if (info == null) {
+      return _requestPortLabel;
+    }
+
+    final vendorId = info.usbVendorId;
+    final productId = info.usbProductId;
+    final hasVendor = vendorId != null;
+    final hasProduct = productId != null;
+
+    return describeWebUsbPort(
+      vendorId: hasVendor ? vendorId : null,
+      productId: hasProduct ? productId : null,
+      requestPortLabel: _requestPortLabel,
+      fallbackDeviceName: _fallbackDeviceName,
+      knownUsbNames: _knownUsbNames,
+    );
+  }
+
+  _WebPortInfo? _portInfo(JSObject port) {
+    try {
+      final info = port.callMethod<JSAny?>('getInfo'.toJS);
+      if (info == null) {
+        return null;
+      }
+      final infoObject = info as JSObject;
+
+      final vendorId = infoObject
+          .getProperty<JSAny?>('usbVendorId'.toJS)
+          ?.dartify();
+      final productId = infoObject
+          .getProperty<JSAny?>('usbProductId'.toJS)
+          ?.dartify();
+      return _WebPortInfo(
+        usbVendorId: vendorId is num ? vendorId.toInt() : null,
+        usbProductId: productId is num ? productId.toInt() : null,
+      );
+    } catch (_) {
+      return null;
+    }
+  }
+
+  String _portKeyFor(JSObject port) {
+    return _cachePort(port);
+  }
+
+  String _cachePort(JSObject port, {String? preferredKey}) {
+    final portKey = preferredKey ?? 'web:port:${_nextAuthorizedPortId++}';
+    _baseLabelsByPortKey[portKey] = _describePort(port);
+    _authorizedPortsByKey[portKey] = port;
+    return portKey;
+  }
+
+  String _displayLabelForPort(JSObject port, {String? portKey}) =>
+      _buildDisplayLabel(portKey ?? _portKeyFor(port));
+
+  String _buildDisplayLabel(String portKey) {
+    return buildUsbDisplayLabel(
+      basePortLabel: _baseLabelsByPortKey[portKey] ?? portKey,
+      deviceName: _deviceNamesByPortKey[portKey],
+    );
+  }
+
+  String _listEntryForPort(JSObject port) {
+    final portKey = _portKeyFor(port);
+    return '$portKey - ${_displayLabelForPort(port, portKey: portKey)}';
+  }
+
+  String get _requestPortKey => 'web:request';
+
+  String get _requestPortListEntry => '$_requestPortKey - $_requestPortLabel';
+
+  void _resetPortCache() {
+    _authorizedPortsByKey.clear();
+    _baseLabelsByPortKey.clear();
+    _deviceNamesByPortKey.clear();
+    _nextAuthorizedPortId = 1;
+  }
+
+  void _releaseLock(JSObject resource) {
+    try {
+      resource.callMethod<JSAny?>('releaseLock'.toJS);
+    } catch (_) {
+      // Ignore lock release failures.
+    }
+  }
+
+  void _ingestRawBytes(Uint8List bytes) {
+    for (final packet in _frameDecoder.ingest(bytes)) {
+      if (!packet.isRxFrame) {
+        _debugLogService?.info(
+          'USB ignored packet start=0x${packet.frameStart.toRadixString(16).padLeft(2, '0')} len=${packet.payload.length}',
+          tag: 'USB Serial',
+        );
+        continue;
+      }
+      _addFrame(packet.payload);
+    }
+  }
+
+  void _addFrame(Uint8List payload) {
+    if (_frameController.isClosed) {
+      return;
+    }
+    _frameController.add(payload);
+  }
+
+  void _addFrameError(Object error, [StackTrace? stackTrace]) {
+    if (_frameController.isClosed) {
+      return;
+    }
+    _frameController.addError(error, stackTrace);
+  }
+
+  Future<void> _closeFrameController() async {
+    if (_frameController.isClosed) {
+      return;
+    }
+    await _frameController.close();
+  }
+
+  void _logFrameSummary(String prefix, Uint8List bytes) {
+    if (bytes.isEmpty) {
+      _debugLogService?.info('$prefix len=0', tag: 'USB Serial');
+      return;
+    }
+    _debugLogService?.info(
+      '$prefix code=${bytes[0]} len=${bytes.length}',
+      tag: 'USB Serial',
+    );
+  }
+}
+
+enum UsbSerialStatus { disconnected, connecting, connected, disconnecting }
+
+final class _WebPortInfo {
+  const _WebPortInfo({required this.usbVendorId, required this.usbProductId});
+
+  final int? usbVendorId;
+  final int? usbProductId;
+}

lib/storage/contact_discovery_store.dart

@@ -0,0 +1,61 @@
+import 'dart:convert';
+import 'dart:typed_data';
+
+import '../models/discovery_contact.dart';
+import 'prefs_manager.dart';
+
+class ContactDiscoveryStore {
+  static const String _key = 'discovered_contacts';
+
+  Future<List<DiscoveryContact>> loadContacts() async {
+    final prefs = PrefsManager.instance;
+    final jsonStr = prefs.getString(_key);
+    if (jsonStr == null) return [];
+
+    try {
+      final jsonList = jsonDecode(jsonStr) as List<dynamic>;
+      return jsonList
+          .map((entry) => _fromJson(entry as Map<String, dynamic>))
+          .toList();
+    } catch (_) {
+      return [];
+    }
+  }
+
+  Future<void> saveContacts(List<DiscoveryContact> contacts) async {
+    final prefs = PrefsManager.instance;
+    final jsonList = contacts.map(_toJson).toList();
+    await prefs.setString(_key, jsonEncode(jsonList));
+  }
+
+  Map<String, dynamic> _toJson(DiscoveryContact contact) {
+    return {
+      'rawPacket': base64Encode(contact.rawPacket),
+      'publicKey': base64Encode(contact.publicKey),
+      'name': contact.name,
+      'type': contact.type,
+      'pathLength': contact.pathLength,
+      'path': base64Encode(contact.path),
+      'latitude': contact.latitude,
+      'longitude': contact.longitude,
+      'lastSeen': contact.lastSeen.millisecondsSinceEpoch,
+    };
+  }
+
+  DiscoveryContact _fromJson(Map<String, dynamic> json) {
+    final lastSeenMs = json['lastSeen'] as int? ?? 0;
+    return DiscoveryContact(
+      rawPacket: Uint8List.fromList(base64Decode(json['rawPacket'] as String)),
+      publicKey: Uint8List.fromList(base64Decode(json['publicKey'] as String)),
+      name: json['name'] as String? ?? 'Unknown',
+      type: json['type'] as int? ?? 0,
+      pathLength: json['pathLength'] as int? ?? -1,
+      path: json['path'] != null
+          ? Uint8List.fromList(base64Decode(json['path'] as String))
+          : Uint8List(0),
+      latitude: (json['latitude'] as num?)?.toDouble(),
+      longitude: (json['longitude'] as num?)?.toDouble(),
+      lastSeen: DateTime.fromMillisecondsSinceEpoch(lastSeenMs),
+    );
+  }
+}

lib/storage/contact_store.dart

@@ -33,6 +33,7 @@ class ContactStore {
       'publicKey': base64Encode(contact.publicKey),
       'name': contact.name,
       'type': contact.type,
+      'flags': contact.flags,
       'pathLength': contact.pathLength,
       'path': base64Encode(contact.path),
       'pathOverride': contact.pathOverride,
@@ -53,6 +54,7 @@ class ContactStore {
       publicKey: Uint8List.fromList(base64Decode(json['publicKey'] as String)),
       name: json['name'] as String? ?? 'Unknown',
       type: json['type'] as int? ?? 0,
+      flags: json['flags'] as int? ?? 0,
       pathLength: json['pathLength'] as int? ?? -1,
       path: json['path'] != null
           ? Uint8List.fromList(base64Decode(json['path'] as String))

lib/utils/battery_utils.dart

@@ -0,0 +1,26 @@
+typedef BatteryVoltageRange = ({int minMv, int maxMv});
+
+BatteryVoltageRange batteryVoltageRange(String chemistry) {
+  switch (chemistry) {
+    case 'lifepo4':
+      return (minMv: 2600, maxMv: 3650);
+    case 'lipo':
+      return (minMv: 3000, maxMv: 4200);
+    case 'nmc':
+    default:
+      return (minMv: 3000, maxMv: 4200);
+  }
+}
+
+int estimateBatteryPercentFromMillivolts(int millivolts, String chemistry) {
+  final range = batteryVoltageRange(chemistry);
+  if (millivolts <= range.minMv) return 0;
+  if (millivolts >= range.maxMv) return 100;
+  return (((millivolts - range.minMv) * 100) / (range.maxMv - range.minMv))
+      .round();
+}
+
+int estimateBatteryPercentFromVolts(double volts, String chemistry) {
+  final millivolts = (volts * 1000).round();
+  return estimateBatteryPercentFromMillivolts(millivolts, chemistry);
+}

lib/utils/browser_detection.dart

@@ -0,0 +1,2 @@
+export 'browser_detection_stub.dart'
+    if (dart.library.js_interop) 'browser_detection_web.dart';

lib/utils/browser_detection_stub.dart

@@ -0,0 +1,3 @@
+class BrowserDetection {
+  static bool get isChrome => false;
+}

lib/utils/browser_detection_web.dart

@@ -0,0 +1,9 @@
+import 'package:web/web.dart' as web;
+
+class BrowserDetection {
+  static bool get isChrome {
+    final userAgent = web.window.navigator.userAgent.toLowerCase();
+    final isChrome = userAgent.contains('chrome');
+    return isChrome;
+  }
+}

lib/utils/contact_search.dart

@@ -1,3 +1,5 @@
+import 'package:meshcore_open/models/discovery_contact.dart';
+
 import '../models/contact.dart';
 
 bool matchesContactQuery(Contact contact, String query) {
@@ -14,8 +16,25 @@ bool matchesContactQuery(Contact contact, String query) {
   return contact.publicKeyHex.toLowerCase().startsWith(hexPrefix);
 }
 
+bool matchesDiscoveryContactQuery(DiscoveryContact contact, String query) {
+  final normalizedQuery = query.trim().toLowerCase();
+  if (normalizedQuery.isEmpty) return true;
+
+  if (contact.name.toLowerCase().contains(normalizedQuery)) {
+    return true;
+  }
+
+  final hexPrefix = _extractHexPrefix(normalizedQuery);
+  if (hexPrefix == null) return false;
+
+  return contact.publicKeyHex.toLowerCase().startsWith(hexPrefix);
+}
+
 String? _extractHexPrefix(String query) {
   var cleaned = query;
+  if (cleaned.startsWith('<')) {
+    cleaned = cleaned.substring(1).replaceAll(">", "");
+  }
   if (cleaned.startsWith('0x')) {
     cleaned = cleaned.substring(2);
   }

lib/utils/dialog_utils.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import '../connector/meshcore_connector.dart';
 import '../l10n/l10n.dart';
+import 'app_logger.dart';
 
 /// Shows a confirmation dialog before disconnecting from the device.
 /// Returns true if user confirmed and disconnect completed, false otherwise.
@@ -28,6 +29,7 @@ Future<bool> showDisconnectDialog(
   );
 
   if (confirmed == true) {
+    appLogger.info('Disconnect confirmed from popup', tag: 'Connection');
     await connector.disconnect();
     return true;
   }

lib/utils/gpx_export.dart

@@ -4,6 +4,7 @@ import 'package:meshcore_open/connector/meshcore_connector.dart';
 import 'package:meshcore_open/connector/meshcore_protocol.dart';
 import 'package:path_provider/path_provider.dart';
 import 'dart:io';
+import '../utils/platform_info.dart';
 
 import 'package:share_plus/share_plus.dart';
 
@@ -109,6 +110,10 @@ class GpxExport {
     String shareText,
     String subject,
   ) async {
+    if (PlatformInfo.isWeb) {
+      debugPrint("GPX export is not supported on Web.");
+      return gpxExportNotAvailable;
+    }
     if (_contacts.isEmpty) {
       debugPrint("No repeaters to export – nothing to share.");
       return gpxExportNoContacts;

lib/utils/macos_usb_device_names.dart

@@ -0,0 +1,92 @@
+import 'dart:io';
+
+/// Queries the macOS IOKit registry via [ioreg] to build a map of serial port
+/// callout device paths to human-readable USB device names.
+///
+/// The [flserial] native library uses the deprecated [IOUSBDevice] IOKit class
+/// to resolve device names, but macOS 10.15+ renamed it to [IOUSBHostDevice].
+/// As a result flserial always returns "n/a" for USB product/vendor info on
+/// modern macOS. This utility bypasses that limitation by invoking ioreg
+/// directly and parsing its output.
+///
+/// Returns a Map of e.g. `"/dev/cu.usbmodem1101"` → `"Nordic NRF52 DK"`.
+/// Devices without a USB product name are not included in the map.
+Future<Map<String, String>> queryMacOsUsbDeviceNames() async {
+  assert(Platform.isMacOS);
+  try {
+    final result = await Process.run('ioreg', [
+      '-r',
+      '-c',
+      'IOUSBHostDevice',
+      '-l',
+    ], stdoutEncoding: const SystemEncoding());
+    if (result.exitCode != 0) return const <String, String>{};
+    return _parseIoregOutput(result.stdout as String);
+  } catch (_) {
+    return const <String, String>{};
+  }
+}
+
+Map<String, String> _parseIoregOutput(String output) {
+  final lines = output.split('\n');
+  final result = <String, String>{};
+
+  // We accumulate the current device block's properties.
+  // A new block starts at a line beginning with "+-o " which indicates a
+  // top-level IOUSBHostDevice entry in the ioreg tree.
+  String? currentVendor;
+  String? currentProduct;
+  final List<String> currentPorts = <String>[];
+
+  void flushBlock() {
+    if (currentPorts.isNotEmpty &&
+        (currentVendor != null || currentProduct != null)) {
+      final parts = <String>[
+        if (currentVendor != null && currentVendor!.isNotEmpty) currentVendor!,
+        if (currentProduct != null && currentProduct!.isNotEmpty)
+          currentProduct!,
+      ];
+      final name = parts.join(' ');
+      for (final port in currentPorts) {
+        result[port] = name;
+      }
+    }
+    currentVendor = null;
+    currentProduct = null;
+    currentPorts.clear();
+  }
+
+  for (final line in lines) {
+    // A new top-level device block begins here.
+    if (line.startsWith('+-o ')) {
+      flushBlock();
+      continue;
+    }
+    // USB Product Name (appears at multiple depths in the tree, first wins)
+    final productMatch = _kProductName.firstMatch(line);
+    if (productMatch != null && currentProduct == null) {
+      currentProduct = productMatch.group(1)?.trim();
+      continue;
+    }
+    // USB Vendor Name
+    final vendorMatch = _kVendorName.firstMatch(line);
+    if (vendorMatch != null && currentVendor == null) {
+      currentVendor = vendorMatch.group(1)?.trim();
+      continue;
+    }
+    // IOCalloutDevice — the /dev/cu.xxx path our app uses
+    final calloutMatch = _kCalloutDevice.firstMatch(line);
+    if (calloutMatch != null) {
+      final port = calloutMatch.group(1)?.trim();
+      if (port != null && port.isNotEmpty) {
+        currentPorts.add(port);
+      }
+    }
+  }
+  flushBlock();
+  return result;
+}
+
+final RegExp _kProductName = RegExp(r'"USB Product Name" = "([^"]*)"');
+final RegExp _kVendorName = RegExp(r'"USB Vendor Name" = "([^"]*)"');
+final RegExp _kCalloutDevice = RegExp(r'"IOCalloutDevice" = "([^"]*)"');

lib/utils/platform_info.dart

@@ -0,0 +1,47 @@
+import 'package:flutter/foundation.dart';
+import 'dart:io' show Platform;
+import 'browser_detection.dart';
+
+/// Utility class to safely check the current platform across web and native.
+///
+/// Using `Platform` from `dart:io` directly on Web causes a crash.
+/// This class handles the `kIsWeb` check first to avoid those crashes.
+class PlatformInfo {
+  /// Whether the app is running in a web browser.
+  static bool get isWeb => kIsWeb;
+
+  /// Whether the app is running in the Chrome browser (only relevant if [isWeb] is true).
+  static bool get isChrome => isWeb && BrowserDetection.isChrome;
+
+  /// Whether the app is running on Android.
+  static bool get isAndroid => !kIsWeb && Platform.isAndroid;
+
+  /// Whether the app is running on iOS.
+  static bool get isIOS => !kIsWeb && Platform.isIOS;
+
+  /// Whether the app is running on macOS.
+  static bool get isMacOS => !kIsWeb && Platform.isMacOS;
+
+  /// Whether the app is running on Windows.
+  static bool get isWindows => !kIsWeb && Platform.isWindows;
+
+  /// Whether the app is running on Linux.
+  static bool get isLinux => !kIsWeb && Platform.isLinux;
+
+  /// Whether the app is running on a mobile platform (Android or iOS).
+  static bool get isMobile => isAndroid || isIOS;
+
+  /// Whether the app is running on a desktop platform (macOS, Windows, or Linux).
+  static bool get isDesktop => isMacOS || isWindows || isLinux;
+
+  /// Whether the current platform supports a native USB serial backend.
+  static bool get supportsNativeUsbSerial =>
+      isAndroid || isWindows || isLinux || isMacOS;
+
+  /// Whether the current browser supports the Web Serial backend.
+  static bool get supportsWebSerial => isWeb && isChrome;
+
+  /// Whether USB serial is expected to be available on the current platform.
+  static bool get supportsUsbSerial =>
+      supportsNativeUsbSerial || supportsWebSerial;
+}

lib/utils/usb_port_labels.dart

@@ -0,0 +1,66 @@
+String normalizeUsbPortName(String portLabel) {
+  final separatorIndex = portLabel.indexOf(' - ');
+  final normalized = separatorIndex >= 0
+      ? portLabel.substring(0, separatorIndex)
+      : portLabel;
+  return normalized.trim();
+}
+
+/// Returns a human-readable name for a serial port label.
+///
+/// The native flserial library encodes port info as a ` - `-separated string:
+///   `"<port> - <description> - <hardware_id>"`
+///
+/// This function extracts the *description* field (index 1) and discards the
+/// raw hardware_id, which is not user-friendly. If the description is missing
+/// or unhelpful (e.g. "n/a"), it falls back to the raw port name.
+String friendlyUsbPortName(String portLabel) {
+  final parts = portLabel.split(' - ');
+  if (parts.length < 2) {
+    return portLabel.trim();
+  }
+  // parts[0] = port name, parts[1] = description, parts[2+] = hardware id
+  final description = parts[1].trim();
+  if (description.isEmpty || description.toLowerCase() == 'n/a') {
+    return parts[0].trim();
+  }
+  return description;
+}
+
+String describeWebUsbPort({
+  required int? vendorId,
+  required int? productId,
+  String requestPortLabel = 'Choose USB Device',
+  String fallbackDeviceName = 'Web Serial Device',
+  Map<String, String> knownUsbNames = const <String, String>{},
+}) {
+  if (vendorId == null && productId == null) {
+    return requestPortLabel;
+  }
+
+  final vendorHex = vendorId?.toRadixString(16).padLeft(4, '0').toUpperCase();
+  final productHex = productId?.toRadixString(16).padLeft(4, '0').toUpperCase();
+  final knownName = (vendorHex != null && productHex != null)
+      ? knownUsbNames['${vendorHex.toLowerCase()}:${productHex.toLowerCase()}']
+      : null;
+
+  final parts = <String>[knownName ?? fallbackDeviceName];
+  if (vendorHex != null) {
+    parts.add('VID:$vendorHex');
+  }
+  if (productHex != null) {
+    parts.add('PID:$productHex');
+  }
+  return '${parts.first} (${parts.skip(1).join(' ')})';
+}
+
+String buildUsbDisplayLabel({
+  required String basePortLabel,
+  String? deviceName,
+}) {
+  final trimmedName = deviceName?.trim() ?? '';
+  if (trimmedName.isEmpty) {
+    return basePortLabel;
+  }
+  return '$basePortLabel - $trimmedName';
+}

lib/widgets/adaptive_app_bar_title.dart

@@ -0,0 +1,17 @@
+import 'package:flutter/material.dart';
+
+class AdaptiveAppBarTitle extends StatelessWidget {
+  final String text;
+
+  const AdaptiveAppBarTitle(this.text, {super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return LayoutBuilder(
+      builder: (context, constraints) => SizedBox(
+        width: constraints.maxWidth,
+        child: FittedBox(fit: BoxFit.scaleDown, child: Text(text, maxLines: 1)),
+      ),
+    );
+  }
+}