feat: add new UI tabs for movies and series, including mobile-specific versions with search and pagination.

lib/features/iptv/widgets/channel_card.dart

@@ -50,7 +50,7 @@ class _ChannelCardState extends ConsumerState<ChannelCard>
     super.initState();
     _pulseController = AnimationController(
        vsync: this, 
-       duration: const Duration(milliseconds: 1000)
+       duration: const Duration(milliseconds: 1000),
     )..repeat(reverse: true);
     
     // Fetch EPG immediately when card is built

lib/features/iptv/widgets/epg_overlay.dart

@@ -20,7 +20,7 @@ class EpgOverlay extends ConsumerWidget {
   Widget build(BuildContext context, WidgetRef ref) {
     final epgAsync = ref.watch(epgByPlaylistProvider(
       EpgRequestKey(playlist: playlist, streamId: streamId),
-    ));
+    ),);
 
     return epgAsync.when(
       data: (epgEntries) {

lib/features/iptv/widgets/live_tv_tab.dart

@@ -165,7 +165,7 @@ class _LiveTVTabState extends ConsumerState<LiveTVTab>
                           if (_searchQuery.isNotEmpty)
                           GestureDetector(
                             onTap: () => _searchController.clear(),
-                            child: const Icon(Icons.close, size: 16, color: AppColors.textSecondary)
+                            child: const Icon(Icons.close, size: 16, color: AppColors.textSecondary),
                           ),
                         ],
                       ),

lib/features/iptv/widgets/movies_tab.dart

@@ -141,8 +141,8 @@ class _MoviesTabState extends ConsumerState<MoviesTab> {
   }
 
   /// Proxy HTTP images through backend to avoid CORS/mixed-content issues
-  String? _getProxiedImageUrl(String? originalUrl) {
-    if (originalUrl == null || originalUrl.isEmpty) return null;
+  String _getProxiedImageUrl(String? originalUrl) {
+    if (originalUrl == null || originalUrl.isEmpty) return '';
     if (originalUrl.startsWith('http://')) {
       return '/api/xtream/$originalUrl';
     }

lib/features/iptv/widgets/series_tab.dart

@@ -141,8 +141,8 @@ class _SeriesTabState extends ConsumerState<SeriesTab> {
   }
 
   /// Proxy HTTP images through backend to avoid CORS/mixed-content issues
-  String? _getProxiedImageUrl(String? originalUrl) {
-    if (originalUrl == null || originalUrl.isEmpty) return null;
+  String _getProxiedImageUrl(String? originalUrl) {
+    if (originalUrl == null || originalUrl.isEmpty) return '';
     if (originalUrl.startsWith('http://')) {
       return '/api/xtream/$originalUrl';
     }