feat: Enhance chapter list and TTS functionality

- Introduced ChapterListQuery and ChapterListPage classes for better chapter management.
- Updated chapterListProvider to handle pagination and canonical ID resolution.
- Improved ReaderScreen with enhanced TTS features, including auto-scroll to active paragraph and better handling of TTS state.
- Added TtsPlayerWidget with compact mode and improved UI for TTS controls.
- Enhanced TtsService to manage speech segments and background mode for TTS.
- Implemented battery optimization checks for TTS background mode on Android.
- Updated main.dart to ensure proper error handling in a zoned environment.

lib/app/app.dart

@@ -1,19 +1,64 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 
+import '../core/auth/session_expiry_notifier.dart';
 import '../core/theme/app_theme.dart';
+import '../features/auth/providers/auth_provider.dart';
+import 'router/route_names.dart';
 import 'router/app_router.dart';
 
-class ReaderApp extends ConsumerWidget {
+class ReaderApp extends ConsumerStatefulWidget {
   const ReaderApp({super.key});
 
   @override
-  Widget build(BuildContext context, WidgetRef ref) {
+  ConsumerState<ReaderApp> createState() => _ReaderAppState();
+}
+
+class _ReaderAppState extends ConsumerState<ReaderApp> {
+  final _scaffoldMessengerKey = GlobalKey<ScaffoldMessengerState>();
+  ProviderSubscription<int>? _sessionExpirySub;
+
+  @override
+  void initState() {
+    super.initState();
+    _sessionExpirySub = ref.listenManual<int>(
+      sessionExpiryProvider,
+      (previous, next) async {
+        if (previous == null || next == previous) return;
+
+        await ref.read(authProvider.notifier).handleSessionExpired();
+
+        if (!mounted) return;
+        final router = ref.read(appRouterProvider);
+        if (router.state.uri.path != RouteNames.login) {
+          router.go(RouteNames.login);
+        }
+
+        _scaffoldMessengerKey.currentState
+          ?..hideCurrentSnackBar()
+          ..showSnackBar(
+            const SnackBar(
+              content: Text('Phiên đăng nhập đã hết hạn. Vui lòng đăng nhập lại.'),
+            ),
+          );
+      },
+    );
+  }
+
+  @override
+  void dispose() {
+    _sessionExpirySub?.close();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
     final router = ref.watch(appRouterProvider);
 
     return MaterialApp.router(
       title: 'Reader App',
       debugShowCheckedModeBanner: false,
+      scaffoldMessengerKey: _scaffoldMessengerKey,
       theme: AppTheme.lightTheme,
       darkTheme: AppTheme.darkTheme,
       themeMode: ThemeMode.system,