Further improve tag views, implement upload queue pause toggle

lib/state/settings_state.dart

@@ -28,8 +28,10 @@ class SettingsState extends ChangeNotifier {
   static const String _proximityAlertDistancePrefsKey = 'proximity_alert_distance';
   static const String _networkStatusIndicatorEnabledPrefsKey = 'network_status_indicator_enabled';
   static const String _suspectedLocationMinDistancePrefsKey = 'suspected_location_min_distance';
+  static const String _pauseQueueProcessingPrefsKey = 'pause_queue_processing';
 
   bool _offlineMode = false;
+  bool _pauseQueueProcessing = false;
   int _maxCameras = 250;
   UploadMode _uploadMode = kEnableDevelopmentModes ? UploadMode.simulate : UploadMode.production;
   FollowMeMode _followMeMode = FollowMeMode.follow;
@@ -42,6 +44,7 @@ class SettingsState extends ChangeNotifier {
 
   // Getters
   bool get offlineMode => _offlineMode;
+  bool get pauseQueueProcessing => _pauseQueueProcessing;
   int get maxCameras => _maxCameras;
   UploadMode get uploadMode => _uploadMode;
   FollowMeMode get followMeMode => _followMeMode;
@@ -92,6 +95,9 @@ class SettingsState extends ChangeNotifier {
     // Load offline mode
     _offlineMode = prefs.getBool(_offlineModePrefsKey) ?? false;
     
+    // Load queue processing setting
+    _pauseQueueProcessing = prefs.getBool(_pauseQueueProcessingPrefsKey) ?? false;
+    
     // Load max cameras
     if (prefs.containsKey(_maxCamerasPrefsKey)) {
       _maxCameras = prefs.getInt(_maxCamerasPrefsKey) ?? 250;
@@ -212,6 +218,13 @@ class SettingsState extends ChangeNotifier {
     notifyListeners();
   }
 
+  Future<void> setPauseQueueProcessing(bool enabled) async {
+    _pauseQueueProcessing = enabled;
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.setBool(_pauseQueueProcessingPrefsKey, enabled);
+    notifyListeners();
+  }
+
   set maxCameras(int n) {
     if (n < 10) n = 10; // minimum
     _maxCameras = n;

lib/state/upload_queue_state.dart

@@ -163,16 +163,17 @@ class UploadQueueState extends ChangeNotifier {
   // Start the upload processing loop
   void startUploader({
     required bool offlineMode, 
+    required bool pauseQueueProcessing,
     required UploadMode uploadMode,
     required Future<String?> Function() getAccessToken,
   }) {
     _uploadTimer?.cancel();
 
-    // No uploads without queue, or if offline mode is enabled.
-    if (_queue.isEmpty || offlineMode) return;
+    // No uploads if queue is empty, offline mode is enabled, or queue processing is paused
+    if (_queue.isEmpty || offlineMode || pauseQueueProcessing) return;
 
     _uploadTimer = Timer.periodic(const Duration(seconds: 10), (t) async {
-      if (_queue.isEmpty || offlineMode) {
+      if (_queue.isEmpty || offlineMode || pauseQueueProcessing) {
         _uploadTimer?.cancel();
         return;
       }