feat: integrate YOLO runtime, update screens, and sync docs

walkguide-mobile/walkguide_app/lib/app/router.dart

@@ -1,6 +1,8 @@
 import 'package:go_router/go_router.dart';
 
 import '../core/constants/app_constants.dart';
+import '../features/activity_log/activity_log_screen.dart' as activity;
+import '../features/notifications/notification_screen.dart' as notifications;
 import '../features/screens.dart';
 import '../shared/widgets/app_shells.dart';
 
@@ -38,10 +40,10 @@ final GoRouter appRouter = GoRouter(
         GoRoute(path: '/user/sos', builder: (_, __) => const SosScreen()),
         GoRoute(
             path: '/user/activity',
-            builder: (_, __) => const ActivityLogScreen()),
+            builder: (_, __) => const activity.ActivityLogScreen()),
         GoRoute(
             path: '/user/notifications',
-            builder: (_, __) => const NotificationScreen()),
+            builder: (_, __) => const notifications.NotificationScreen()),
         GoRoute(
             path: '/user/navigation',
             builder: (_, __) => const NavigationModeScreen()),