refactor: improvements

lib/shared/services/tasks/task_queue.dart

@@ -63,7 +63,19 @@ class TaskQueueNotifier extends Notifier<List<OutboundTask>> {
   Future<void> _save() async {
     try {
       final prefs = ref.read(sharedPreferencesProvider);
-      final raw = state.map((t) => t.toJson()).toList(growable: false);
+      final retained = [
+        for (final task in state)
+          if (task.status == TaskStatus.queued ||
+              task.status == TaskStatus.running)
+            task,
+      ];
+
+      if (retained.length != state.length) {
+        // Remove completed entries from state to keep the in-memory queue lean.
+        state = retained;
+      }
+
+      final raw = retained.map((t) => t.toJson()).toList(growable: false);
       await prefs.setString(_prefsKey, jsonEncode(raw));
     } catch (e) {
       debugPrint('DEBUG: Failed to persist task queue: $e');

lib/shared/widgets/improved_loading_states.dart

@@ -51,15 +51,14 @@ class _ImprovedLoadingStateState extends State<ImprovedLoadingState>
     );
     _animationController.forward();
 
-    // Announce loading state for screen readers
-    if (widget.message != null) {
-      WidgetsBinding.instance.addPostFrameCallback((_) {
-        SemanticsService.announce(
-          'Loading: ${widget.message}',
-          TextDirection.ltr,
-        );
-      });
-    }
+    // Announce loading state for screen readers using localized messaging.
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (!mounted) return;
+      final l10n = AppLocalizations.of(context);
+      final announcement = widget.message ?? l10n?.loadingContent ?? 'Loading';
+      final direction = Directionality.maybeOf(context) ?? TextDirection.ltr;
+      SemanticsService.announce(announcement, direction);
+    });
   }
 
   @override

lib/shared/widgets/offline_indicator.dart

@@ -68,7 +68,7 @@ class _WasOfflineNotifier extends Notifier<bool> {
           }
         },
         loading: () {},
-        error: (_, __) {},
+        error: (error, stackTrace) {},
       );
     });
     return false;