Update documentation and dependencies for MeshCore Open

- Replaced sqflite with shared_preferences for local key-value storage in README.md
- Updated gradle.properties to include builtInKotlin and newDsl flags
- Enhanced translation feature documentation in additional-features.md
- Modified BLE protocol documentation to include new command and response codes in ble-protocol.md
- Clarified channel management details in channels.md
- Improved chat and messaging documentation, including message path viewing and translation options in chat-and-messaging.md
- Updated contacts management details in contacts.md
- Revised map and location documentation for inferred locations and user interface changes in map-and-location.md
- Adjusted navigation flow in navigation.md to reflect changes in screen transitions
- Updated notification system details in notifications.md
- Enhanced repeater management documentation in repeater-management.md
- Clarified scanner and connection process in scanner-and-connection.md
- Reorganized settings documentation for better clarity and added new node and location settings in settings.md

CLAUDE.md

@@ -41,7 +41,7 @@ lib/
 ├── models/          # Plain data classes (Contact, Channel, Message, Community, …)
 ├── services/        # ChangeNotifier services + IO services (retry, translation, ML, …)
 ├── storage/         # SharedPreferences-backed stores, scoped per device key
-├── helpers/         # Pure utilities (Smaz compression, GIF parsing, scroll helpers)
+├── helpers/         # Pure utilities (Smaz compression, GIF parsing, scroll helpers, path hop resolution)
 ├── utils/           # Platform / IO / UX utilities (logger, GPX export, dialogs)
 ├── theme/           # MeshPalette (defined, not yet wired in main.dart)
 ├── l10n/            # ARB localization for 18 locales
@@ -194,14 +194,14 @@ enum MeshCoreConnectionState {
 
 ## Dependencies
 
-App version: `8.0.0+11` — Dart SDK constraint: `^3.9.2`
+App version: `9.5.0+13` — Dart SDK constraint: `^3.9.2`
 
 **Connectivity**
 
 | Package | Version | Purpose |
 |---------|---------|---------|
 | flutter_blue_plus | ^2.1.0 | BLE scanning, connecting, and UART data transfer |
-| flutter_blue_plus_platform_interface | ^8.2.1 | Platform-interface layer required by flutter_blue_plus |
+| flutter_blue_plus_platform_interface | ^9.0.2 | Platform-interface layer required by flutter_blue_plus |
 | flserial | git (MeshEnvy fork) | USB serial transport for wired device connections (TODO: upstream pending) |
 
 **State / Storage**
@@ -232,7 +232,7 @@ App version: `8.0.0+11` — Dart SDK constraint: `^3.9.2`
 
 | Package | Version | Purpose |
 |---------|---------|---------|
-| material_symbols_icons | ^4.2906.0 | Extended Material Symbols icon set (line-of-sight, etc.) |
+| material_symbols_icons | ^4.2928.1 | Extended Material Symbols icon set (line-of-sight, etc.) |
 | flutter_svg | ^2.0.10+1 | Renders SVG assets (custom icons such as LoS indicator) |
 | cached_network_image | ^3.4.1 | Caches map tile images downloaded over the network |
 | flutter_cache_manager | ^3.4.1 | Underlying cache manager used by cached_network_image |
@@ -246,7 +246,7 @@ App version: `8.0.0+11` — Dart SDK constraint: `^3.9.2`
 
 | Package | Version | Purpose |
 |---------|---------|---------|
-| flutter_local_notifications | ^20.1.0 | Shows local push notifications for incoming messages |
+| flutter_local_notifications | ^22.0.0 | Shows local push notifications for incoming messages |
 | flutter_foreground_task | ^9.2.0 | Keeps the app alive in background to maintain BLE/USB connection |
 
 **ML / AI**
@@ -255,7 +255,8 @@ App version: `8.0.0+11` — Dart SDK constraint: `^3.9.2`
 |---------|---------|---------|
 | ml_algo | ^16.0.0 | OLS regression used in `timeout_prediction_service.dart` to predict message ACK timeouts |
 | ml_dataframe | ^1.0.0 | DataFrame input format required by ml_algo |
-| llamadart | >=0.6.8 <0.7.0 | On-device LLM inference used in `translation_service.dart` for message translation |
+| llamadart | ^0.8.0 | On-device LLM inference used in `translation_service.dart` for message translation |
+| flutter_langdetect | ^0.0.1 | Detects a message's source language in `translation_service.dart` before translating |
 
 **Misc**
 
@@ -263,8 +264,8 @@ App version: `8.0.0+11` — Dart SDK constraint: `^3.9.2`
 |---------|---------|---------|
 | http | ^1.2.0 | Fetches tile URLs and any remote API calls |
 | url_launcher | ^6.3.0 | Opens URLs in the system browser from linkified chat text |
-| share_plus | ^12.0.1 | Shares files (e.g. exported GPX tracks) via the system share sheet |
+| share_plus | ^13.1.0 | Shares files (e.g. exported GPX tracks) via the system share sheet |
-| package_info_plus | ^9.0.0 | Reads app version/build number displayed in settings |
+| package_info_plus | ^10.1.0 | Reads app version/build number displayed in settings |
 | web | ^1.1.1 | Web-platform APIs for USB serial and browser detection on Flutter Web |
 | intl | any | Internationalization and locale formatting (required by flutter_localizations) |
 | build_pipe | ^0.3.1 | CI/CD build pipeline configuration (web release builds with versioned assets) |
@@ -333,4 +334,4 @@ PWA scaffold present but boilerplate (`manifest.json` and `index.html` are unmod
 | `lib/services/translation_service.dart` | On-device LLM translation (llamadart) |
 | `lib/storage/prefs_manager.dart` | SharedPreferences singleton initialized in `main()` |
 | `lib/screens/scanner_screen.dart` | Home screen — BLE scan and connect |
-| `pubspec.yaml` | Dependencies and project metadata (current version `8.0.0+11`) |
+| `pubspec.yaml` | Dependencies and project metadata (current version `9.5.0+13`) |

README.md

@@ -94,12 +94,12 @@ MeshCore Open is a cross-platform mobile application for communicating with Mesh
 |---------|---------|
 | flutter_blue_plus | Bluetooth Low Energy communication |
 | provider | State management |
-| sqflite | Local database storage |
+| shared_preferences | Local key-value storage (scoped per device) |
 | flutter_map | Interactive map display |
 | latlong2 | Geographic coordinate handling |
 | flutter_local_notifications | Background notification support |
-| smaz | Message compression |
 | pointycastle | Cryptographic operations |
+| llamadart | On-device LLM message translation |
 | intl | Internationalization and date formatting |
 
 ## Getting Started

android/gradle.properties

@@ -1,3 +1,7 @@
 org.gradle.jvmargs=-Xmx8G -XX:MaxMetaspaceSize=4G -XX:ReservedCodeCacheSize=512m -XX:+HeapDumpOnOutOfMemoryError
 android.useAndroidX=true
 android.enableJetifier=true
+# This builtInKotlin flag was added automatically by Flutter migrator
+android.builtInKotlin=false
+# This newDsl flag was added automatically by Flutter migrator
+android.newDsl=false

documentation/additional-features.md

@@ -198,6 +198,7 @@ Tap the translate button on any received message. On first use, the GGUF model f
 
 ### How It Works
 - Model files are managed by `TranslationFileStore`; download progress is shown in-place
+- Before translating, the source language is automatically detected using the `flutter_langdetect` package. If the detected language already matches the target language, translation is skipped
 - Translation runs via `TranslationService` using the llamadart CPU backend (arm64 and x64 on Android)
 - Translated text is shown in `TranslatedMessageContent` as an inline overlay on the original message bubble
 - Each translation is cached; re-tapping shows the cached result without re-running inference

documentation/ble-protocol.md

@@ -56,6 +56,7 @@ enum MeshCoreConnectionState {
     - `Lilygo`
     - `HT-`
     - `LowMesh_MC_`
+    - `NRF52`
 2. **Connect** with 15-second timeout (6 seconds on Linux)
 3. **Request MTU** 185 bytes (non-web only)
 4. **Discover services** and locate NUS
@@ -115,13 +116,15 @@ On unexpected disconnection, auto-reconnect with exponential backoff:
 | 32 | CMD_SET_CHANNEL | Set channel name and PSK |
 | 36 | CMD_SEND_TRACE_PATH | Request path trace |
 | 38 | CMD_SET_OTHER_PARAMS | Set misc parameters |
-| 39 | CMD_GET_TELEMETRY_REQ | Request sensor telemetry |
+| 39 | CMD_SEND_TELEMETRY_REQ | Request sensor telemetry |
 | 40 | CMD_GET_CUSTOM_VAR | Get custom variables |
 | 41 | CMD_SET_CUSTOM_VAR | Set a custom variable |
 | 50 | CMD_SEND_BINARY_REQ | Send binary request |
+| 56 | CMD_GET_STATS | Request companion radio stats |
 | 57 | CMD_SEND_ANON_REQ | Send anonymous request |
 | 58 | CMD_SET_AUTO_ADD_CONFIG | Set auto-add configuration |
 | 59 | CMD_GET_AUTO_ADD_CONFIG | Get auto-add configuration |
+| 61 | CMD_SET_PATH_HASH_MODE | Set path hash width (bytes per hop) |
 
 ## Response / Push Codes (Device → App)
 
@@ -145,6 +148,7 @@ On unexpected disconnection, auto-reconnect with exponential backoff:
 | 17 | RESP_CODE_CHANNEL_MSG_RECV_V3 | Incoming channel message (v3) |
 | 18 | RESP_CODE_CHANNEL_INFO | Channel definition |
 | 21 | RESP_CODE_CUSTOM_VARS | Custom variables |
+| 24 | RESP_CODE_STATS | Companion radio stats |
 | 25 | RESP_CODE_AUTO_ADD_CONFIG | Auto-add flags |
 | 0x80 | PUSH_CODE_ADVERT | Known contact re-seen |
 | 0x81 | PUSH_CODE_PATH_UPDATED | Better path found; carries the 32-byte public key of the updated contact |

documentation/channels.md

@@ -4,7 +4,7 @@
 
 Channels are broadcast group-chat spaces secured by a 16-byte pre-shared key (PSK). Any device with the same channel index and PSK will receive and decrypt channel messages. Unlike direct messages, channel messages are broadcast to the entire mesh.
 
-Up to 8 channels (indices 0–7) can be active simultaneously on one device.
+The number of active channels is determined by the firmware (default 40); the device reports its actual limit at login.
 
 ## How to Access
 
@@ -17,7 +17,7 @@ QuickSwitchBar tab 1 (middle) from any main screen.
 | Public | Globe | Green | Fixed well-known PSK; any device can join |
 | Hashtag | Hash tag | Blue | PSK derived from the hashtag name via SHA-256; discoverable by convention |
 | Private | Lock | Blue | Random PSK; requires out-of-band sharing of the 32-hex key |
-| Community | Groups/Tag | Purple | PSK derived via HMAC-SHA256 from a community's shared secret |
+| Community | Groups/Tag | Magenta | PSK derived via HMAC-SHA256 from a community's shared secret |
 
 ## Channels List Screen
 
@@ -26,12 +26,12 @@ QuickSwitchBar tab 1 (middle) from any main screen.
 - **Search bar** with live text filtering (300ms debounce)
 - **Sort/filter button**
 - **Scrollable list of channel cards**, each showing:
-  - Type icon with color coding (purple badge overlay for community channels)
+  - Type icon with color coding (magenta badge overlay for community channels)
   - Channel name (or "Channel N" if unnamed)
   - Unread badge (if messages are unread)
   - Drag handle (when manual sort is active)
 - **"+" FAB** to add a new channel
-- **Overflow menu**: Disconnect, Manage Communities (only shown when at least one community exists), Settings
+- **Overflow menu**: Disconnect, Manage Communities, Settings
 
 If no channels exist, an empty state with an "Add Public Channel" shortcut is shown. If a search produces no results, a separate "no results" empty state with a search-off icon is shown.
 
@@ -59,7 +59,7 @@ Tap the "+" FAB to open a dialog with six options:
 
 | Action | Description |
 |---|---|
-| Edit | Change name, PSK (with a dice icon to generate a random PSK), or SMAZ compression toggle (compresses outgoing messages to allow longer text within the byte limit) |
+| Edit | Change name, PSK (with a dice icon to generate a random PSK), SMAZ compression toggle (compresses outgoing messages to allow longer text within the byte limit), or Cyr2Lat encoding toggle (transliterates Cyrillic to Latin for compatibility) |
 | Mute / Unmute | Toggle push notification suppression for this channel |
 | Delete | Remove the channel from the device (confirmation required) |
 
@@ -100,8 +100,7 @@ Tap a channel card to open the channel chat screen.
 
 ### Message Path Viewing
 
-- **Mobile**: Tap a message bubble to view its routing path
+- **All platforms**: Long-press (or right-click on desktop) a message bubble → "Path"
-- **Desktop**: Long-press/right-click → "Path" (tapping the bubble does nothing on desktop)
 - Opens the Channel Message Path Screen (see [Additional Features](additional-features.md))
 
 ### Context Actions (Long-Press / Right-Click)
@@ -109,7 +108,7 @@ Tap a channel card to open the channel chat screen.
 | Action | Availability | Description |
 |---|---|---|
 | Reply | All messages | Triggers reply mode |
-| Path | Desktop only | Opens message path view |
+| Path | All messages | Opens message path view |
 | Add Reaction | Incoming messages only | Opens emoji picker (cannot react to your own messages) |
 | Copy | All messages | Copies text to clipboard |
 | Mark as Unread | Incoming messages only | Marks this message and all subsequent incoming messages as unread |
@@ -142,7 +141,7 @@ From the channels screen overflow menu → "Manage Communities". Opens a draggab
 - **Tap a community** to directly show its QR code for sharing
 - **Popup menu** per community:
   - **Show QR** — displays the QR code for sharing with new members
-  - **Delete** — removes the community locally and deletes all associated device channels (confirmation dialog warns how many channels will be removed)
+  - **Leave Community** — removes the community locally and deletes all associated device channels (confirmation dialog warns how many channels will be removed)
 
 ## How Channels Differ from Direct Messages
 

documentation/chat-and-messaging.md

@@ -18,17 +18,15 @@ From the Contacts screen, tap any Chat-type contact to open the ChatScreen.
 
 - **Title**: Contact name
 - **Subtitle**: Current routing path label (e.g., "2 hops", "flood (auto)", "direct (forced)") and unread count. Tapping the subtitle shows the full path details.
-- **Action buttons**:
+- **Action button**:
-  - **Routing mode** (waves icon): Switch between Auto, Direct, and Flood routing
+  - **Overflow menu** (⋮ icon): Contains Routing, Info, Telemetry, Settings, and Clear Chat. Routing opens the routing sheet where you can switch between Auto, Direct, and Flood routing and manage recent paths (hop count, round-trip time, age, success count, color-coded by repeater). Info shows a dialog with contact type, path, GPS coordinates, and public key.
-  - **Path management** (timeline icon): View recent paths with hop count, round-trip time, age, and success count. Paths are color-coded by direct repeater (green/yellow/red/blue for ranked repeaters, grey for unknown). Tap a path to activate it (the device verifies and confirms via snackbar), long-press to view full path details, set custom paths, or force flood mode. A warning banner appears when history reaches 100 entries.
-  - **Info** (info icon): Contact info dialog showing type, path, GPS coordinates, public key, and SMAZ compression toggle
 
 ### Message List
 
 - Scrollable list with newest messages at the bottom
 - **Outgoing messages**: Right-aligned, primary color background. **Failed messages** change to a red-toned error container background
 - **Incoming messages**: Left-aligned, grey background with a colored avatar (initial letter or first emoji of sender name; color is deterministic from a hash of the sender name)
-- Bubble width capped at 65% of screen width
+- Bubble width capped at 72% of screen width
 - Hyperlinks rendered as tappable green underlined text
 - **Pinch-to-zoom**: Two-finger zoom (0.8x–1.8x) and double-tap to reset
 - **Jump to bottom**: Floating button appears when scrolled away from the bottom
@@ -87,7 +85,7 @@ When a direct message is sent:
 
 1. The app computes an expected ACK hash: `SHA256([timestamp][attempt][text][selfPubKey])[0:4]` — matching the firmware's hash calculation. If SMAZ compression is enabled, the compressed text (not the original) is hashed
 2. On device acknowledgment (`RESP_CODE_SENT`), the message transitions to "sent" and a timeout timer starts
-3. **Timeout duration**: Preferably from the ML timeout prediction service; otherwise calculated from LoRa airtime physics: `500 + (airtime × 6 + 250) × (pathLength + 1)` ms for direct paths, `500 + 16 × airtime` ms for flood (airtime is estimated from the radio's current spreading factor, bandwidth, and coding rate)
+3. **Timeout duration**: Preferably from the ML timeout prediction service; otherwise from the device's own `est_timeout` in `RESP_CODE_SENT` (clamped to the physics range); otherwise calculated from LoRa airtime physics: `500 + (airtime × 6 + 250) × (pathLength + 1)` ms for direct paths, `500 + 16 × airtime` ms for flood (airtime is estimated from the radio's current spreading factor, bandwidth, and coding rate). The result is capped at 45 seconds.
 4. On timeout, the message is retried with **exponential backoff**: `1000 × 2^retryCount` ms (1s, 2s, 4s, 8s, 16s...)
 5. **Max retries**: Configurable (default 5, range 2–10)
 6. After max retries, the message is marked "failed" — but a **30-second grace window** remains during which a late ACK can still resolve the message to "delivered"
@@ -114,8 +112,9 @@ Add emoji reactions to incoming messages (not your own):
 | Action | Availability | Description |
 |---|---|---|
 | Add reaction | Incoming messages only | Opens emoji picker |
-| View path | Mobile: tap bubble directly; Desktop: long-press/right-click menu | Shows message routing path |
+| View path | All platforms: long-press/right-click menu | Shows message routing path |
 | Copy | All messages | Copies text to clipboard |
+| Translate | Incoming messages only (when translation is enabled and not yet translated) | Translates the message on-demand using the on-device model |
 | Mark as Unread | Incoming messages only | Marks this message and all subsequent incoming messages as unread |
 | Delete | All messages | Removes locally (not from mesh) |
 | Retry | Failed outgoing messages | Re-sends the message |

documentation/contacts.md

@@ -6,18 +6,17 @@ The Contacts screen is the primary hub for managing mesh nodes your radio has a
 
 ## How to Access
 
-- Automatically shown after connecting to a device
+- QuickSwitchBar tab 0 (leftmost) from Channels or Map screens (Channels is shown first after connecting)
-- QuickSwitchBar tab 0 (leftmost) from Channels or Map screens
 - Back navigation from Chat or Settings screens
 
 ## Contact Types
 
 | Type | Avatar Color | Icon | Description |
 |---|---|---|---|
-| Chat | Blue | Chat bubble | Another user's mesh radio |
+| Chat | Blue | Initials / emoji | Another user's mesh radio |
-| Repeater | Orange | Cell tower | A mesh repeater/relay node |
+| Repeater | Amber | Cell tower | A mesh repeater/relay node |
-| Room | Purple | Group | A room server for group chat |
+| Room | Magenta | Meeting room | A room server for group chat |
-| Sensor | Green | Sensors | A sensor device |
+| Sensor | Teal | Sensors | A sensor device |
 
 ## Contact List
 
@@ -73,42 +72,42 @@ Groups are stored per radio identity (scoped by public key).
 
 | Action | Availability | Description |
 |---|---|---|
-| Ping | Repeaters (always) | Opens PathTraceMapScreen targeting the repeater |
+| Ping | Repeaters only | Opens PathTraceMapScreen targeting the repeater |
-| Path Trace | Rooms (always); Chat/Sensor if `pathLength > 0` | Opens PathTraceMapScreen. For rooms, label shows "Ping" when no path bytes are known, "Path Trace" when path bytes are available |
+| Path Trace | Rooms (always); Chat/Sensor only if `pathLength > 0` | Opens PathTraceMapScreen. For rooms, label shows "Ping" when no path bytes are known, "Path Trace" when path bytes are available |
 | Manage Repeater | Repeaters only | Login dialog → RepeaterHubScreen |
 | Room Login | Rooms only | Login dialog → ChatScreen |
 | Room Management | Rooms only | Login dialog → RepeaterHubScreen (management mode) |
-| Open Chat | Chat/Sensor | Same as single tap |
 | Add/Remove Favorite | All types | Toggles the favorite flag |
-| Share Contact | All types | Copies `meshcore://<hex>` URI to clipboard |
+| Share Contact | All types | Requests advert from device → copies `meshcore://<hex>` URI to clipboard |
 | Share Contact Zero-Hop | All types | Broadcasts the contact's advertisement one hop |
 | Delete Contact | All types | Confirmation dialog → removes from device and clears messages |
 
 ## App Bar Menus
 
-The Contacts screen has **two separate popup menus** in the app bar:
+The Contacts screen has a single **three-dot overflow menu** (`⋮`) in the app bar:
 
-**Antenna icon menu** (contact sharing):
+- Discovered Contacts — opens the DiscoveryScreen
+- Add Contact from Clipboard — reads a `meshcore://<hex>` URI from clipboard and imports it
+- *(divider)*
 - Zero-Hop Advert — broadcasts your advertisement to immediately adjacent nodes
 - Flood Advert — broadcasts across the full mesh network
 - Copy Advert to Clipboard — copies your `meshcore://<hex>` URI for sharing externally
-- Add Contact from Clipboard — reads a `meshcore://<hex>` URI from clipboard and imports it
+- *(divider)*
-
-**Three-dot overflow menu**:
 - Disconnect — disconnects from the device
-- Discovered Contacts — opens the DiscoveryScreen
 - Settings — opens the Settings screen
 
+A **floating action button** (person-add icon) provides a shortcut sheet to "Add Contact from Clipboard" or "Discovered Contacts".
+
 ## Adding Contacts
 
 ### Automatic (Passive)
 When the radio hears an advertisement, the contact appears automatically if auto-add is enabled for that type (configurable in Settings → Contact Settings).
 
 ### Import from Clipboard
-Antenna menu → "Add Contact from Clipboard". Reads a `meshcore://<hex>` URI from clipboard and imports it to the device.
+Overflow menu (or the FAB shortcut) → "Add Contact from Clipboard". Reads a `meshcore://<hex>` URI from clipboard and imports it to the device.
 
 ### Import from Discovered Contacts
-Overflow menu → "Discovered Contacts". Shows nodes heard passively that haven't been added yet. Tap to immediately import (no confirmation dialog), or long-press for more options (Add, Copy URI, Delete). The Discovery screen has its own search bar, type filters (Users, Repeaters, Rooms, Favorites), and sort options (Last Seen, A-Z). An overflow "Delete All" option clears all discovered contacts.
+Overflow menu → "Discovered Contacts". Shows nodes heard passively that haven't been added yet. Tap to immediately import (no confirmation dialog), or long-press for more options (Copy URI, Delete). The Discovery screen has its own search bar, type filters (Users, Repeaters, Rooms), and sort options (Last Seen, A-Z). An overflow "Delete All" option clears all discovered contacts.
 
 ## Contact Sharing Format
 

documentation/map-and-location.md

@@ -35,9 +35,9 @@ Location pins shared in chat messages are displayed as flags:
 
 Tap a pin to see its info. Options to "Hide" (session only) or "Remove" (persistent).
 
-### Predicted / Guessed Locations (Semi-Transparent)
+### Predicted / Guessed Locations
 
-Many contacts on the mesh don't have GPS hardware, so the map has no explicit coordinates for them. Instead of leaving these contacts invisible, the app **infers an approximate position** by analyzing the repeater path the contact's messages travel through. These inferred positions are displayed as semi-transparent markers with a `not_listed_location` icon, visually distinct from confirmed-location markers.
+Many contacts on the mesh don't have GPS hardware, so the map has no explicit coordinates for them. Instead of leaving these contacts invisible, the app **infers an approximate position** by analyzing the repeater path the contact's messages travel through. These inferred positions are displayed as markers with a `not_listed_location` icon and a muted grey or colored border, visually distinct from confirmed-location markers.
 
 #### Why guessed locations exist
 
@@ -55,19 +55,19 @@ In a mesh network, every message hops through one or more repeaters on its way t
 
 5. **Compute the estimated position**:
    - **Single anchor**: The contact is placed on a small circle (330m radius) around the repeater. The angle on the circle is deterministic — derived from an FNV-1a hash of the contact's public key — so the same contact always appears at the same offset, preventing markers from stacking on top of each other.
-   - **Two or more anchors**: The position is the average (centroid) of all anchor coordinates, with a smaller offset radius (80–120m) applied for visual separation.
+   - **Two or more anchors**: The position is a weighted average of all anchor coordinates (each subsequent anchor weighted at half the previous one, biasing toward the first), with a smaller offset radius (120m for 2 anchors, 80m for 3+) applied for visual separation.
 
 6. **Assign confidence level**:
-   - **High confidence** (2+ anchors): Displayed at 55% opacity.
+   - **High confidence** (2+ anchors): The marker border uses the node's type color (brighter border).
-   - **Low confidence** (1 anchor): Displayed at 30% opacity.
+   - **Low confidence** (1 anchor): The marker border is rendered in a muted grey.
 
 7. **Cache the result**: The computation is cached using a key derived from the contact's paths, anchor positions, path-history version, and radio parameters. The cache is only invalidated when any of these inputs change, avoiding recomputation on every UI rebuild.
 
 #### How to read guessed locations on the map
 
-- **Semi-transparent marker** with a `not_listed_location` icon: This is a guessed position, not a confirmed GPS fix.
+- **Marker with `not_listed_location` icon**: This is a guessed position, not a confirmed GPS fix.
-- **More opaque** (55%): Higher confidence — the contact was seen through 2 or more repeaters with known positions.
+- **Colored border** (type color): Higher confidence — the contact was seen through 2 or more repeaters with known positions.
-- **More transparent** (30%): Lower confidence — based on a single repeater anchor only.
+- **Grey border**: Lower confidence — based on a single repeater anchor only.
 - Coordinates shown in the marker info dialog are prefixed with `~` to indicate they are estimated.
 - Guessed locations can be toggled on/off in the map filter dialog (FAB → "Guessed locations" toggle).
 
@@ -110,9 +110,16 @@ A map with a polyline showing the route from your node through repeater hops to
 - **Green circles**: Hops with known GPS coordinates
 - **Orange circles** (`~HH`): Inferred positions (no GPS but deducible from contacts)
 - **Red endpoint**: Target contact with known GPS
-- **Purple semi-transparent endpoint**: Target with guessed position
+- **Magenta endpoint**: Target with guessed position
 
-A legend card at the bottom lists each hop pair with SNR quality icons and total path distance.
+A bottom panel shows each hop pair with SNR quality icons and total path distance. When multiple observed paths are available, a **Single / Combined** toggle appears at the top of the map. In Combined view, all paths are overlaid; shared segments are highlighted with a white halo and a path count badge appears on shared nodes.
+
+The bottom panel also provides **packet animation controls**:
+- **Animation toggle** (on/off)
+- **Step back / Play / Step forward / Replay** buttons
+- **Follow packet lock** — keeps the map camera centered on the moving packet dot
+- **Speed selector** (0.5×, 1×, 2×, 4×)
+- A live **"Hop x of y · from → to"** label that tracks the active segment
 
 ### How It Works
 Sends a trace request frame over the mesh. The repeater network traces the path hop-by-hop and returns per-hop SNR data. For hops without GPS, positions are inferred by averaging GPS coordinates of contacts sharing that last-hop byte.
@@ -125,17 +132,17 @@ Sends a trace request frame over the mesh. The repeater network traces the path
 From the main map, tap the terrain/antenna icon.
 
 ### What the User Sees
-A full-screen map with a collapsible control panel containing:
+A full-screen map with a draggable bottom sheet containing:
-- **Elevation profile chart**: Terrain fill (green), LOS beam line (white), radio horizon line (yellow)
+- **Elevation profile chart**: Terrain fill (green), LOS beam line (white), radio horizon line (yellow); obstruction points are marked as clickable dots on the chart
-- **Status**: Clear (green) or blocked (red) with distance and minimum clearance
+- **Status summary**: Clear (green), Marginal (amber, within 5 m of obstruction), or Blocked (red) with distance and clearance/obstruction amount
-- **Options panel**: Node toggles, endpoint dropdowns, antenna height sliders (0–400 ft), Run LOS button
+- **Options section** (collapsible): Node toggles, endpoint dropdowns, antenna height sliders (0–400 ft), Run LOS button
 
 ### Key Interactions
-- **Long-press the map** to add custom endpoints (orange pushpin markers, renameable/deleteable)
+- **Long-press the map** to add custom endpoints (pushpin markers, renameable/deleteable)
 - **Tap a marker** to select it as Point A or B; LOS runs automatically when both are set
 - **Antenna heights** are adjustable for both endpoints
-- **Map line** between endpoints is colored green (clear) or red (blocked)
+- **Map line** between endpoints is colored green (clear), amber (marginal), or red (blocked)
-- Terrain elevation is fetched from the Open-Meteo API (21–81 sample points, cached 24 hours)
+- Terrain elevation is fetched from the Open-Meteo API (21, 41, or 81 sample points depending on link distance, cached 24 hours)
 - K-factor is adjusted per radio frequency from a baseline of 4/3 at 915 MHz
 
 ---
@@ -149,7 +156,7 @@ Settings → App Settings → Map Display → Offline Map Cache
 - Map with a blue polygon overlay showing previously selected cache bounds
 - Bounding box coordinates card
 - **Cache Area** controls: "Use Current View" and Clear buttons
-- **Zoom Range** slider (3–18) with estimated tile count
+- **Zoom Range** range slider (3–18, dual-handle for min and max) with estimated tile count
 - **Download progress** bar (when downloading)
 - **Download Tiles** and **Clear Cache** buttons
 

documentation/navigation.md

@@ -5,7 +5,7 @@
 The app follows this general flow:
 
 ```
-Launch → Scanner Screen → [Connect via BLE/USB/TCP] → Contacts Screen
+Launch → Scanner Screen → [Connect via BLE/USB/TCP] → Channels Screen
 ```
 
 After connecting, the three main screens (Contacts, Channels, Map) are accessible via a persistent bottom navigation bar called the **QuickSwitchBar**.
@@ -24,7 +24,7 @@ Tapping a tab replaces the current screen with a subtle fade + slight horizontal
 
 ## Disconnection
 
-- The disconnect button (available in the Settings screen and other main screens) shows a confirmation dialog before disconnecting
+- The disconnect button (available in the overflow menu of each main screen) shows a confirmation dialog before disconnecting
 - If the device disconnects unexpectedly, the app automatically navigates back to the Scanner screen (fires after the current frame completes via a post-frame callback)
 - This auto-navigation behavior (`DisconnectNavigationMixin`) is shared across all main screens
 
@@ -38,11 +38,11 @@ Tapping a tab replaces the current screen with a subtle fade + slight horizontal
 
 ```
 ScannerScreen (root, always on stack)
-  ├─ [BLE connect] → push → ContactsScreen
+  ├─ [BLE connect] → push → ChannelsScreen
-  ├─ [TCP FAB] → push → TcpScreen
+  ├─ [TCP icon button] → push → TcpScreen
-  │     └─ [TCP connected] → pushReplacement → ContactsScreen
+  │     └─ [TCP connected] → pushReplacement → ChannelsScreen
-  └─ [USB FAB] → push → UsbScreen
+  └─ [USB icon button] → push → UsbScreen
-        └─ [USB connected] → pushReplacement → ContactsScreen
+        └─ [USB connected] → pushReplacement → ChannelsScreen
 
 ContactsScreen (selected=0)
   ├─ [quick-switch 1] → pushReplacement → ChannelsScreen
@@ -60,9 +60,9 @@ ChannelsScreen (selected=1)
 MapScreen (selected=2)
   ├─ [quick-switch 0] → pushReplacement → ContactsScreen
   ├─ [quick-switch 1] → pushReplacement → ChannelsScreen
-  ├─ [radar button] → push → PathTraceMapScreen
+  ├─ [radar menu item] → enters in-map path trace mode (push → PathTraceMapScreen after path is built)
-  ├─ [terrain button] → push → LineOfSightMapScreen
+  ├─ [terrain menu item] → push → LineOfSightMapScreen
-  └─ [long-press] → share marker / set location
+  └─ [long-press] → share marker sheet
 
 Settings (push from any main screen)
   └─ [App Settings] → push → AppSettingsScreen

documentation/notifications.md

@@ -22,7 +22,7 @@ MeshCore Open provides both **system notifications** (push-style OS alerts) and
 
 ### 3. Advertisement Notifications
 - **Triggered when**: A new node is discovered on the mesh for the first time
-- **Title**: "New [type] discovered" (e.g., "New chat node discovered")
+- **Title**: "New [type] discovered" (e.g., "New Chat discovered")
 - **Body**: Contact's name
 - **Priority**: Default
 - **Android channel**: `adverts`
@@ -43,7 +43,7 @@ Red numeric badges appear throughout the UI:
 - **Contacts list**: Each contact row shows a red pill badge (e.g., "3") for unread messages
 - **Channels list**: Each channel row shows an unread badge
 - **Chat screen subtitle**: Shows unread count inline
-- Badges cap at "99+" for display
+- Badges cap at "9999+" for display
 
 ### How Unread Counts Work
 

documentation/repeater-management.md

@@ -34,8 +34,8 @@ The central management screen showing:
 |---|---|---|
 | Status | Repeater Status Screen | All users |
 | Telemetry | Telemetry Screen | All users |
-| CLI | Repeater CLI Screen | Admin only |
 | Neighbors | Neighbors Screen | All users |
+| CLI | Repeater CLI Screen | Admin only |
 | Settings | Repeater Settings Screen | Admin only |
 
 The battery chemistry selector and CLI/Settings cards are hidden from guest users.
@@ -89,7 +89,7 @@ A terminal-style interface for sending commands directly to the repeater.
 - Type a command and press send (or Enter on desktop)
 - Up/down arrows navigate through command history
 - Quick-command buttons populate and send common commands
-- Bug report icon: Shows raw frame debug info for the next typed command (shows error snackbar if input field is empty)
+- Overflow menu (three-dot icon): "Debug next command" option shows raw frame debug info for the next typed command (shows error snackbar if input field is empty)
 - Help icon: Opens a scrollable reference of all known CLI commands. Tapping any command populates the input field immediately
 - Clear icon: Wipes the command/response history
 - Failed/timed-out commands are automatically retried once
@@ -112,7 +112,9 @@ The in-app help reference (help icon) documents all known commands. Categories:
 
 **Power Management**: `get pwrmgt.support`, `get pwrmgt.source`, `get pwrmgt.bootreason`, `get pwrmgt.bootmv`
 
-**Sensors**: `sensor get {key}`
+**Sensors**: `sensor get {key}`, `sensor set {key} {value}`, `sensor list [start]`
+
+**GPS Management**: `gps`, `gps {on|off}`, `gps sync`, `gps setloc`, `gps advert`, `gps advert {none|share|prefs}`
 
 **Region Management**: `region`, `region load`, `region get`, `region put`, `region remove`, `region allowf`, `region denyf`, `region home`, `region save`, `region default`, `region list allowed`, `region list denied`
 
@@ -207,7 +209,7 @@ Nine configuration cards, each with its own per-field refresh button(s):
 
 **Danger Zone** (red-styled card)
 - Reboot repeater (sends `reboot` with confirmation dialog)
-- Erase filesystem (serial-only; shows informational snackbar only — no command is sent over the air)
+- Erase filesystem (serial-only; shows a confirmation dialog, then an informational snackbar — no command is sent over the air)
 
 ### Key Interactions
 - **Settings are NOT auto-fetched on open**. Name is pre-filled from cached contact data. Each section has its own refresh button to fetch live values from the repeater

documentation/scanner-and-connection.md

@@ -28,9 +28,11 @@ The BLE Scanner is the app's home screen, displayed immediately on launch.
 
 **Device List**: When no devices are found, shows a large Bluetooth icon with a prompt. The prompt text is dynamic: "Searching for devices..." while actively scanning, or "Tap Scan to search" when idle. When devices are found, shows a scrollable list of `DeviceTile` widgets.
 
-**Bottom FAB Row**: Up to three floating action buttons:
+**App Bar Actions**: Icon buttons in the top-right corner of the app bar:
-- **USB** button - Opens USB connection screen (Android, Windows, Linux, macOS, Chrome web only)
+- **USB** icon button - Opens USB connection screen (Android, Windows, Linux, macOS, Chrome web only)
-- **TCP/IP** button - Opens TCP connection screen (all non-web platforms)
+- **TCP/IP** icon button - Opens TCP connection screen (all non-web platforms)
+
+**Bottom FAB**: A single floating action button:
 - **BLE Scan** button - Toggles BLE scanning on/off; shows a spinner when scanning. **Disabled** (greyed out, not tappable) when Bluetooth is off
 
 ### Device Tile
@@ -51,7 +53,7 @@ Note: The weak (-80 to -90 dBm) and poor (< -90 dBm) tiers share the same icon s
 
 ### How Scanning Works
 
-- Filters for devices with names starting with one of the known prefixes: `MeshCore-`, `Whisper-`, `WisCore-`, `Seeed`, `Lilygo`, `HT-`, `LowMesh_MC_`
+- Filters for devices advertising the Nordic UART Service UUID (so community forks with non-standard names are still found). Known name prefixes used by stock firmware builds for reference: `MeshCore-`, `Whisper-`, `WisCore-`, `Seeed`, `Lilygo`, `HT-`, `LowMesh_MC_`, `NRF52`
 - Uses low-latency scan mode on Android
 - Scans for 10 seconds then auto-stops
 - On iOS/macOS, waits for BLE adapter initialization before starting
@@ -65,7 +67,7 @@ Tap a device tile or its Connect button:
 3. Requests MTU 185 bytes for optimal throughput
 4. Discovers BLE services and locates the Nordic UART Service
 5. Subscribes to TX notifications for receiving data
-6. On success, automatically navigates to the Contacts screen
+6. On success, automatically navigates to the Channels screen
 7. On failure, shows a red error snackbar
 
 ---
@@ -74,7 +76,7 @@ Tap a device tile or its Connect button:
 
 ### How to Access
 
-From the Scanner screen, tap the **USB** FAB button.
+From the Scanner screen, tap the **USB** icon button in the app bar.
 
 ### What the User Sees
 
@@ -82,15 +84,15 @@ From the Scanner screen, tap the **USB** FAB button.
 - A list of detected USB serial ports, each showing:
   - Friendly display name
   - Raw port name (subtitle, only shown when it differs from the display name)
-  - "Connect" button
+  - Chevron trailing icon (the entire tile is tappable to connect)
-- FABs at the bottom to switch to BLE or TCP (these use `pushReplacement`, so back navigation returns to Scanner, not between USB/TCP)
+- Transport switcher buttons (outlined, not FABs) to switch to BLE or TCP (these use `pushReplacement`, so back navigation returns to Scanner, not between USB/TCP)
 
 ### Key Interactions
 
 - On desktop (Windows, Linux, macOS): ports are polled every 2 seconds for hot-plug detection (polling pauses while connecting/connected)
 - On mobile: tap the "Scan" FAB to manually refresh
-- Tap a port or its Connect button to connect
+- Tap a port tile to connect
-- On successful connection, navigates to Contacts screen
+- On successful connection, navigates to Channels screen
 - On connection failure, the port list automatically refreshes
 - Platform-specific error messages for common USB failures (permission denied, device missing, device detached, device busy, driver missing, port invalid, timeout, and more)
 
@@ -100,7 +102,7 @@ From the Scanner screen, tap the **USB** FAB button.
 
 ### How to Access
 
-From the Scanner screen, tap the **TCP/IP** FAB button.
+From the Scanner screen, tap the **TCP/IP** icon button in the app bar.
 
 ### What the User Sees
 
@@ -108,7 +110,7 @@ From the Scanner screen, tap the **TCP/IP** FAB button.
 - **Host address** text field
 - **Port number** text field
 - **Connect** button
-- FABs at the bottom to switch to USB or BLE
+- Transport switcher buttons (outlined, not FABs) to switch to USB or BLE
 
 ### Key Interactions
 
@@ -119,6 +121,6 @@ From the Scanner screen, tap the **TCP/IP** FAB button.
   - Validation errors are shown as red snackbars
 - The Connect button shows a spinner and "Connecting..." label while in progress
 - The status bar shows the specific host:port being connected to (e.g., "Connecting to 192.168.1.1:5000")
-- On success, navigates to Contacts screen and saves the host/port to settings
+- On success, navigates to Channels screen and saves the host/port to settings
 - On connection, the status bar shows the active TCP endpoint (e.g., "Connected to 192.168.1.1:5000")
 - Error messages for timeout, unsupported platform, and connection failures

documentation/settings.md

@@ -12,12 +12,13 @@ Settings are only accessible while a device is connected.
 The settings screen is a scrollable list of cards:
 
 1. [Device Info](#device-info)
-2. [App Settings](#app-settings) (link to sub-screen)
+2. [Node Settings](#node-settings)
-3. [Node Settings](#node-settings)
+3. [Location](#location)
-4. [Actions](#actions)
+4. [App Settings](#app-settings) (link to sub-screen)
-5. [Debug](#debug)
+5. [Actions](#actions)
 6. [Export](#export)
-7. [About](#about)
+7. [Debug](#debug)
+8. [About](#about)
 
 ---
 
@@ -40,56 +41,6 @@ Battery shows an alert icon and orange text when at 15% or below. The toggle onl
 
 ---
 
-## App Settings
-
-A dedicated sub-screen for app-level preferences (nothing here is sent to the device). All settings persist locally via SharedPreferences.
-
-### Appearance
-- **Theme**: System / Light / Dark
-- **Language**: System default or one of 18 languages (English, French, Spanish, German, Polish, Slovenian, Portuguese, Italian, Chinese, Swedish, Dutch, Slovak, Bulgarian, Russian, Ukrainian, Hungarian, Japanese, Korean)
-- **Enable Message Tracing**: Shows path trace overlays and extra metadata on messages
-
-### Notifications
-- **Master enable/disable**: Requests OS permission when enabling
-- **Message notifications**: New direct message alerts
-- **Channel message notifications**: New channel message alerts
-- **Advertisement notifications**: New node discovery alerts
-
-### Messaging
-- **Clear Path on Max Retry**: Erases the stored routing path after all retries fail
-- **Jump to Oldest Unread**: When opening a chat, scrolls to the oldest unread message instead of the newest
-- **Auto Route Rotation**: Enables weighted routing algorithm. When enabled, expands to show five slider sub-settings (hidden when off):
-  - Max Route Weight (1–10, default 5, integer steps)
-  - Initial Route Weight (0.5–5.0, default 3.0)
-  - Success Increment (0.1–2.0, default 0.5, 0.1 steps)
-  - Failure Decrement (0.1–2.0, default 0.2, 0.1 steps)
-  - Max Message Retries (2–10, default 5)
-
-### Battery
-- **Battery Chemistry**: NMC / LiFePO4 / LiPo (per device, used to calibrate percentage from voltage)
-
-### Translation
-Not shown on web. Controls on-device message translation powered by a locally-downloaded ML model:
-- **Enable Translation**: Translates incoming messages into the selected target language
-- **Translate Composer**: Translates outgoing messages from the target language back before sending
-- **Target Language**: Language to translate into (searchable list; defaults to the app language)
-- **Downloaded Model**: Dropdown to select among already-downloaded translation models
-- **Preset Model**: Download a curated preset model with one tap
-- **Custom Model URL**: Enter a URL to download a custom GGUF-format model; shows download progress and a cancel button
-
-### Map Display
-- **Show Repeaters**: Toggle repeater markers on map
-- **Show Chat Nodes**: Toggle chat node markers
-- **Show Other Nodes**: Toggle room/sensor markers
-- **Time Filter**: All time / Last 1h / Last 6h / Last 24h / Last week
-- **Units**: Metric / Imperial
-- **Offline Map Cache**: Navigate to tile download screen
-
-### Debug
-- **App Debug Logging**: Enable the in-app debug log
-
----
-
 ## Node Settings
 
 These settings are sent directly to the connected device firmware.
@@ -101,7 +52,7 @@ These settings are sent directly to the connected device firmware.
 
 ### Radio Settings
 Opens a dialog pre-populated with the device's current radio settings. Contains:
-- **Preset dropdown**: 19 regional presets — selecting a preset immediately fills all fields below. Full list: Australia, Australia (Narrow), Australia SA, WA, QLD, Czech Republic, EU 433MHz, EU/UK (Long Range), EU/UK (Medium Range), EU/UK (Narrow), New Zealand, New Zealand (Narrow), Portugal 433, Portugal 869, Switzerland, USA Arizona, USA/Canada, Vietnam, Off-Grid 433, Off-Grid 869, Off-Grid 918
+- **Preset dropdown**: Regional presets — selecting a preset immediately fills all fields below. Includes presets for Australia, Australia (Narrow), Australia SA WA QLD, Czech Republic, EU 433MHz, EU/UK (Long Range), EU/UK (Medium Range), EU/UK (Narrow), New Zealand, New Zealand (Narrow), Portugal 433, Portugal 869, numerous Russia city presets, Switzerland, USA Arizona, USA/Canada, and Vietnam
 - **Frequency** (MHz): Free text, validated 300–2500 MHz
 - **Bandwidth**: Dropdown (7.8 / 10.4 / 15.6 / 20.8 / 31.25 / 41.7 / 62.5 / 125 / 250 / 500 kHz)
 - **Spreading Factor**: SF5–SF12
@@ -109,6 +60,13 @@ Opens a dialog pre-populated with the device's current radio settings. Contains:
 - **TX Power** (dBm): Validated 0 to device max (typically 22 dBm)
 - **Client Repeat** toggle: Only shown on firmware v9+; requires frequency to be exactly 433.000, 869.000, or 918.000 MHz (the Off-Grid presets). Save is blocked with a warning if enabled on other frequencies
 
+### Companion Radio Stats
+Opens the RF statistics screen (RSSI, SNR, packet counts) for the paired radio. Only enabled when connected to a device that supports companion radio stats.
+
+---
+
+## Location
+
 ### Location
 Opens a dialog pre-populated with the device's current coordinates (if known):
 - Latitude and longitude fields (decimal, 6 decimal places). If only one field is provided, the other uses the device's current value
@@ -125,8 +83,68 @@ Five toggles controlling which node types are auto-added when heard:
 - Auto-add Sensors
 - Overwrite Oldest (when contact list is full)
 
-### Privacy Mode
+### Privacy
-Opens a confirmation dialog with three buttons: Cancel, Enable, and Disable. Both states can be set from the same dialog regardless of current state. A snackbar confirms which state was applied. When on, the node stops broadcasting its location in advertisements.
+Opens a dialog with controls for how the node shares telemetry and location data:
+- **Advert Location**: Toggle whether the node broadcasts its location in advertisements
+- **Multi-Ack**: Toggle multi-ack delivery confirmations
+- **Telemetry Base Mode**: Deny All / Allow by Contact / Allow All
+- **Telemetry Location Mode**: Deny All / Allow by Contact / Allow All
+- **Telemetry Environment Mode**: Deny All / Allow by Contact / Allow All
+
+Settings take effect when saved. A snackbar confirms the update.
+
+---
+
+## App Settings
+
+A dedicated sub-screen for app-level preferences (nothing here is sent to the device). All settings persist locally via SharedPreferences.
+
+### Appearance
+- **Theme**: System / Light / Dark
+- **Language**: System default or one of 18 languages (English, French, Spanish, German, Polish, Slovenian, Portuguese, Italian, Chinese, Swedish, Dutch, Slovak, Bulgarian, Russian, Ukrainian, Hungarian, Japanese, Korean)
+
+### Notifications
+- **Master enable/disable**: Requests OS permission when enabling
+- **Message notifications**: New direct message alerts
+- **Channel message notifications**: New channel message alerts
+- **Advertisement notifications**: New node discovery alerts
+
+### Messaging
+- **Clear Path on Max Retry**: Erases the stored routing path after all retries fail
+- **Jump to Oldest Unread**: When opening a chat, scrolls to the oldest unread message instead of the newest
+- **Auto Route Rotation**: Enables weighted routing algorithm. When enabled, expands to show five slider sub-settings (hidden when off):
+  - Max Route Weight (1–10, default 5, integer steps)
+  - Initial Route Weight (0.5–5.0, default 3.0)
+  - Success Increment (0.1–2.0, default 0.5, 0.1 steps)
+  - Failure Decrement (0.1–2.0, default 0.2, 0.1 steps)
+  - Max Message Retries (2–10, default 5)
+- **Enable Message Tracing**: Shows path trace overlays and extra metadata on messages
+
+### Battery
+- **Battery Chemistry**: NMC / LiFePO4 / LiPo (per device, used to calibrate percentage from voltage)
+
+### Map Display
+- **Show Repeaters**: Toggle repeater markers on map
+- **Show Chat Nodes**: Toggle chat node markers
+- **Show Other Nodes**: Toggle room/sensor markers
+- **Time Filter**: All time / Last 1h / Last 6h / Last 24h / Last week
+- **Units**: Metric / Imperial
+- **Offline Map Cache**: Navigate to tile download screen
+
+### Translation
+Not shown on web. Controls on-device message translation powered by a locally-downloaded ML model:
+- **Enable Translation**: Translates incoming messages into the selected target language
+- **Translate Composer**: Translates outgoing messages from the target language back before sending
+- **Target Language**: Language to translate into (searchable list; defaults to the app language)
+- **Downloaded Model**: Dropdown to select among already-downloaded translation models
+- **Preset Model**: Download a curated preset model with one tap
+- **Custom Model URL**: Enter a URL to download a custom GGUF-format model; shows download progress and a cancel button
+
+### Cyrillic-to-Latin (Cyr2Lat)
+Controls character substitution profiles used to render Cyrillic text in Latin characters. A dropdown selects the active profile; Add, Edit, and Delete buttons manage the profile list (the last remaining profile cannot be deleted). Each profile stores a JSON character map.
+
+### Debug
+- **App Debug Logging**: Enable the in-app debug log
 
 ---
 
@@ -136,10 +154,24 @@ One-tap device operations:
 
 | Action | Description |
 |---|---|
-| Send Advertisement | Floods the mesh with your node's advertisement |
 | Sync Time | Sends current Unix timestamp to the device |
 | Refresh Contacts | Re-requests the full contact list |
-| Reboot Device | Confirmation dialog → reboots the device (shown in orange) |
+| Reboot Device | Confirmation dialog → reboots the device (shown in warning color) |
+| Delete All Paths | Confirmation dialog → clears all stored routing paths (shown in alert color) |
+
+---
+
+## Export
+
+Three GPX export options (not available on web):
+
+| Option | Exports |
+|---|---|
+| Export Repeaters | Repeaters and Rooms with GPS coordinates |
+| Export Contacts | Chat contacts with GPS coordinates |
+| Export All | All contacts with GPS coordinates |
+
+Each creates a `.gpx` file and opens the OS share sheet. Feedback via snackbar for four outcomes: success, no contacts with coordinates, feature not available (web), or error.
 
 ---
 
@@ -160,20 +192,6 @@ Structured log entries (Info / Warning / Error), with tag, message, and timestam
 
 ---
 
-## Export
-
-Three GPX export options (not available on web):
-
-| Option | Exports |
-|---|---|
-| Export Repeaters | Repeaters and Rooms with GPS coordinates |
-| Export Contacts | Chat contacts with GPS coordinates |
-| Export All | All contacts with GPS coordinates |
-
-Each creates a `.gpx` file and opens the OS share sheet. Feedback via snackbar for four outcomes: success, no contacts with coordinates, feature not available (web), or error.
-
----
-
 ## About
 
 Shows the standard Flutter about dialog with app name, version, and legal notice.