refactored lesson details, centralized logout logic, and added resume re-fetch

lib/app.dart

@@ -17,6 +17,7 @@ import 'state/app/modules/app_modules.dart';
 import 'state/app/modules/breaker/bloc/breaker_bloc.dart';
 import 'state/app/modules/chat_list/bloc/chat_list_bloc.dart';
 import 'state/app/modules/settings/bloc/settings_cubit.dart';
+import 'state/app/modules/timetable/bloc/timetable_bloc.dart';
 import 'utils/debouncer.dart';
 import 'view/pages/overhang.dart';
 import 'widget/breaker/breaker.dart';
@@ -54,6 +55,10 @@ class _AppState extends State<App> with WidgetsBindingObserver {
       if (!mounted) return;
       context.read<BreakerBloc>().refresh();
       context.read<ChatListBloc>().refresh();
+      // App is freshly mounted on every login (BlocConsumer in main.dart
+      // swaps it in for Login), so this also covers the post-logout case
+      // where the bloc was reset to an empty state and needs a fresh fetch.
+      context.read<TimetableBloc>().refresh();
     });
 
     _updateTimings = Timer.periodic(const Duration(seconds: 30), (_) {