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/core/auth/session_expiry_notifier.dart

@@ -0,0 +1,14 @@
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+class SessionExpiryNotifier extends StateNotifier<int> {
+  SessionExpiryNotifier() : super(0);
+
+  void notifyExpired() {
+    state = state + 1;
+  }
+}
+
+final sessionExpiryProvider =
+    StateNotifierProvider<SessionExpiryNotifier, int>((ref) {
+  return SessionExpiryNotifier();
+});