fix(ci): exclude bin/ from root analyzer and clean remaining warnings

The frontend CI job ran `flutter analyze` from the repo root, which also
analyzed the bin/ server package without its dependencies resolved
(shelf_router, sqlite3, bcrypt, test), producing hundreds of
uri_does_not_exist errors. bin/ is a standalone package covered by the
backend job, so it is now excluded from root analysis.

Also:
- Remove all unused fields/variables flagged as analyzer warnings
  (api_client, cache_service, player_screen, subtitle_service,
  live_tv_tab, mobile screens)
- Run `flutter analyze --no-fatal-infos` in CI: pre-existing deprecation
  infos (withOpacity, dart:html) stay non-fatal while errors and warnings
  still fail the build

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

lib/core/api/api_client.dart

@@ -8,7 +8,6 @@ class ApiClient {
   factory ApiClient() => _instance;
   
   late final Dio _dio;
-  String? _token;
 
   ApiClient._internal() {
     _dio = Dio(BaseOptions(
@@ -35,7 +34,7 @@ class ApiClient {
   void _restoreTokenFromStorage() {
     final storedToken = getStoredToken();
     if (storedToken != null) {
-      _token = storedToken;
+
       _dio.options.headers['Authorization'] = 'Bearer $storedToken';
     }
   }
@@ -48,7 +47,7 @@ class ApiClient {
 
   /// Set authentication token
   void setToken(String? token) {
-    _token = token;
+
     if (token != null) {
       _dio.options.headers['Authorization'] = 'Bearer $token';
       // Store in localStorage for persistence

lib/core/services/cache_service.dart

@@ -28,7 +28,6 @@ class CacheEntry<T> {
 /// Optimized cache service for memory management
 class CacheService {
   static const _maxMemoryCacheSizeMb = 200;
-  static const _maxImageCacheItems = 500;
 
   final Map<String, CacheEntry> _cache = {};
   int _totalSizeBytes = 0;
@@ -83,7 +82,6 @@ class CacheService {
 
   /// Clear expired entries
   void clearExpired() {
-    final now = DateTime.now();
     final toRemove = _cache.entries
         .where((e) => e.value.isExpired())
         .map((e) => e.key)

lib/features/iptv/screens/player_screen.dart

@@ -54,14 +54,10 @@ class _PlayerScreenState extends ConsumerState<PlayerScreen> {
   bool _isInitialized = false;
   bool _isLoading = true;
   StreamSubscription? _messageSubscription;
-  final String _aspectRatio = 'contain';
   bool _isSeeking = false;
   late final String _viewIdPrefix =
       DateTime.now().millisecondsSinceEpoch.toString();
   String _viewId = 'iptv-player';
-  String? _currentStreamUrl;
-  String _statusMessage = 'Loading...';
-  String? _errorMessage;
   bool _isMuted = false;
   bool _ignoreStatusUpdates = false;
 
@@ -104,7 +100,6 @@ class _PlayerScreenState extends ConsumerState<PlayerScreen> {
   }) async {
     setState(() {
       _isLoading = true;
-      _statusMessage = 'Loading...';
     });
 
     try {
@@ -164,8 +159,6 @@ class _PlayerScreenState extends ConsumerState<PlayerScreen> {
         service.isPlaybackLoading = false;
       });
 
-      _currentStreamUrl = streamUrl;
-
       final encodedUrl = Uri.encodeComponent(streamUrl);
       // Force player choice based on stream type:
       // - Live TV: Player Lite (simple TS playback with mpegts.js)
@@ -222,9 +215,9 @@ class _PlayerScreenState extends ConsumerState<PlayerScreen> {
         });
       }
     } catch (e) {
+      print('[PlayerScreen] Failed to load stream: $e');
       if (mounted) {
         setState(() {
-          _errorMessage = 'Failed to load stream: $e';
           _isLoading = false;
         });
       }

lib/features/iptv/services/subtitle_service.dart

@@ -42,9 +42,6 @@ class SubtitleEntry {
 
 /// Service for handling subtitles
 class SubtitleService {
-  static const _srtPattern =
-      r'(\d+)\n(\d{2}):(\d{2}):(\d{2}),(\d{3}) --> (\d{2}):(\d{2}):(\d{2}),(\d{3})\n([\s\S]*?)(?=\n\n|\Z)';
-
   /// Parse SRT subtitle content
   static List<SubtitleEntry> parseSrt(String content) {
     final entries = <SubtitleEntry>[];

lib/features/iptv/widgets/live_tv_tab.dart

@@ -26,7 +26,6 @@ class LiveTVTab extends ConsumerStatefulWidget {
 class _LiveTVTabState extends ConsumerState<LiveTVTab>
     with AutomaticKeepAliveClientMixin {
   String? _selectedCategory;
-  final bool _isGridView = true;
   final TextEditingController _searchController = TextEditingController();
   bool _showFavoritesOnly = false;
   String _searchQuery = '';

lib/mobile/features/iptv/screens/mobile_playlist_selection_screen.dart

@@ -19,7 +19,6 @@ class MobilePlaylistSelectionScreen extends ConsumerWidget {
 
   @override
   Widget build(BuildContext context, WidgetRef ref) {
-    final currentUser = ref.watch(authProvider).currentUser;
     final playlistsAsync = ref.watch(playlistsProvider);
 
     return Theme(

lib/mobile/features/iptv/widgets/mobile_settings_tab.dart

@@ -62,7 +62,6 @@ class _MobileSettingsTabState extends ConsumerState<MobileSettingsTab> {
   Widget build(BuildContext context) {
     final currentUser = ref.watch(authProvider).currentUser;
     final settings = ref.watch(iptvSettingsProvider);
-    final themeState = ref.watch(themeProvider);
     final themeNotifier = ref.read(themeProvider.notifier);
     final isDark = Theme.of(context).brightness == Brightness.dark;