refactor: perf improvements

lib/core/services/connectivity_service.dart

@@ -34,8 +34,8 @@ class ConnectivityService {
       _checkConnectivity();
     });
 
-    // Check every 5 seconds
-    _connectivityTimer = Timer.periodic(const Duration(seconds: 5), (_) {
+    // Check periodically; balance responsiveness with battery/network usage
+    _connectivityTimer = Timer.periodic(const Duration(seconds: 10), (_) {
       _checkConnectivity();
     });
   }

lib/core/widgets/error_boundary.dart

@@ -106,8 +106,16 @@ class _ErrorBoundaryState extends ConsumerState<ErrorBoundary> {
       }
 
       // Default error UI
+      // Respect ambient text direction when available; fall back to LTR.
+      TextDirection direction;
+      try {
+        direction = Directionality.of(context);
+      } catch (_) {
+        direction = TextDirection.ltr;
+      }
+
       return Directionality(
-        textDirection: TextDirection.ltr,
+        textDirection: direction,
         child: Scaffold(
           backgroundColor: context.conduitTheme.surfaceBackground,
           body: SafeArea(