Added Line Of Sight Feature for repeater placement, Added app wide Units Setting (#198)

* feat: add LOS workflow, global units, l10n cleanup, and mobile UI overflow fixes

Squashes prior PR commits into one changeset including: LOS map/service/tests, global metric/imperial unit system adoption, notification/BLE safety fixes, app-wide localization backfill/mojibake cleanup, and responsive UI title/overflow hardening.

* l10n: revert unrelated locale churn for LOS feature

* feat: keep LOS with app-wide unit settings

* fix: resolve post-merge app bar/import analyzer errors

* style: format screen files for CI

lib/services/notification_service.dart

@@ -58,11 +58,17 @@ class NotificationService {
       requestBadgePermission: true,
       requestSoundPermission: true,
     );
+    const windowsSettings = WindowsInitializationSettings(
+      appName: 'MeshCore Open',
+      appUserModelId: 'org.meshcore.open.app',
+      guid: 'e7ea8f85-72f5-4f36-91f6-038f740ccf86',
+    );
 
     const initSettings = InitializationSettings(
       android: androidSettings,
       iOS: iosSettings,
       macOS: macSettings,
+      windows: windowsSettings,
     );
 
     try {
@@ -76,6 +82,13 @@ class NotificationService {
     }
   }
 
+  Future<bool> _ensureInitialized() async {
+    if (!_isInitialized) {
+      await initialize();
+    }
+    return _isInitialized;
+  }
+
   Future<bool> requestPermissions() async {
     if (!_isInitialized) {
       await initialize();
@@ -114,9 +127,7 @@ class NotificationService {
     String? contactId,
     int? badgeCount,
   }) async {
-    if (!_isInitialized) {
-      await initialize();
-    }
+    if (!await _ensureInitialized()) return;
 
     final androidDetails = AndroidNotificationDetails(
       'messages',
@@ -148,13 +159,17 @@ class NotificationService {
       macOS: macDetails,
     );
 
-    await _notifications.show(
-      id: contactId?.hashCode ?? 0,
-      title: contactName,
-      body: message,
-      notificationDetails: notificationDetails,
-      payload: 'message:$contactId',
-    );
+    try {
+      await _notifications.show(
+        id: contactId?.hashCode ?? 0,
+        title: contactName,
+        body: message,
+        notificationDetails: notificationDetails,
+        payload: 'message:$contactId',
+      );
+    } catch (e) {
+      debugPrint('Failed to show message notification: $e');
+    }
   }
 
   Future<void> _showAdvertNotificationImpl({
@@ -162,9 +177,7 @@ class NotificationService {
     required String contactType,
     String? contactId,
   }) async {
-    if (!_isInitialized) {
-      await initialize();
-    }
+    if (!await _ensureInitialized()) return;
 
     const androidDetails = AndroidNotificationDetails(
       'adverts',
@@ -193,13 +206,17 @@ class NotificationService {
       macOS: macDetails,
     );
 
-    await _notifications.show(
-      id: contactId?.hashCode ?? DateTime.now().millisecondsSinceEpoch,
-      title: _l10n.notification_newTypeDiscovered(contactType),
-      body: contactName,
-      notificationDetails: notificationDetails,
-      payload: 'advert:$contactId',
-    );
+    try {
+      await _notifications.show(
+        id: contactId?.hashCode ?? DateTime.now().millisecondsSinceEpoch,
+        title: _l10n.notification_newTypeDiscovered(contactType),
+        body: contactName,
+        notificationDetails: notificationDetails,
+        payload: 'advert:$contactId',
+      );
+    } catch (e) {
+      debugPrint('Failed to show advert notification: $e');
+    }
   }
 
   Future<void> _showChannelMessageNotificationImpl({
@@ -208,9 +225,7 @@ class NotificationService {
     int? channelIndex,
     int? badgeCount,
   }) async {
-    if (!_isInitialized) {
-      await initialize();
-    }
+    if (!await _ensureInitialized()) return;
 
     final androidDetails = AndroidNotificationDetails(
       'channel_messages',
@@ -247,13 +262,17 @@ class NotificationService {
         ? _l10n.notification_receivedNewMessage
         : preview;
 
-    await _notifications.show(
-      id: channelIndex?.hashCode ?? DateTime.now().millisecondsSinceEpoch,
-      title: channelName,
-      body: body,
-      notificationDetails: notificationDetails,
-      payload: 'channel:$channelIndex',
-    );
+    try {
+      await _notifications.show(
+        id: channelIndex?.hashCode ?? DateTime.now().millisecondsSinceEpoch,
+        title: channelName,
+        body: body,
+        notificationDetails: notificationDetails,
+        payload: 'channel:$channelIndex',
+      );
+    } catch (e) {
+      debugPrint('Failed to show channel notification: $e');
+    }
   }
 
   /// Returns a privacy-safe identifier for debug logging.
@@ -396,35 +415,39 @@ class NotificationService {
   Future<void> _showNotificationImmediately(
     _PendingNotification notification,
   ) async {
-    switch (notification.type) {
-      case _NotificationType.message:
-        await _showMessageNotificationImpl(
-          contactName: notification.title,
-          message: notification.body,
-          contactId: notification.id,
-          badgeCount: notification.badgeCount,
-        );
-        break;
-      case _NotificationType.advert:
-        await _showAdvertNotificationImpl(
-          contactName: notification.body,
-          contactType: notification.title,
-          contactId: notification.id,
-        );
-        break;
-      case _NotificationType.channelMessage:
-        await _showChannelMessageNotificationImpl(
-          channelName: notification.title,
-          message: notification.body,
-          channelIndex: int.tryParse(notification.id ?? ''),
-          badgeCount: notification.badgeCount,
-        );
-        break;
+    try {
+      switch (notification.type) {
+        case _NotificationType.message:
+          await _showMessageNotificationImpl(
+            contactName: notification.title,
+            message: notification.body,
+            contactId: notification.id,
+            badgeCount: notification.badgeCount,
+          );
+          break;
+        case _NotificationType.advert:
+          await _showAdvertNotificationImpl(
+            contactName: notification.body,
+            contactType: notification.title,
+            contactId: notification.id,
+          );
+          break;
+        case _NotificationType.channelMessage:
+          await _showChannelMessageNotificationImpl(
+            channelName: notification.title,
+            message: notification.body,
+            channelIndex: int.tryParse(notification.id ?? ''),
+            badgeCount: notification.badgeCount,
+          );
+          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 +491,17 @@ class NotificationService {
 
     const notificationDetails = NotificationDetails(android: androidDetails);
 
-    await _notifications.show(
-      id: 'batch_summary'.hashCode,
-      title: _l10n.notification_activityTitle,
-      body: parts.join(', '),
-      notificationDetails: notificationDetails,
-      payload: 'batch',
-    );
+    try {
+      await _notifications.show(
+        id: 'batch_summary'.hashCode,
+        title: _l10n.notification_activityTitle,
+        body: parts.join(', '),
+        notificationDetails: notificationDetails,
+        payload: 'batch',
+      );
+    } catch (e) {
+      debugPrint('Failed to show batch summary notification: $e');
+    }
   }
 }