Feature: Mark movies/episodes as watched at 80% progress

- Added _checkAndMarkWatched() method in NativePlayerScreen
- Moved watch tracking from immediate play to 80% completion
- Added seriesId/season/episodeNum params to NativePlayerScreen
- Removed premature markWatched calls from movies/series tabs

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

@@ -264,7 +264,7 @@ class _MobileSeriesDetailScreenState extends ConsumerState<MobileSeriesDetailScr
 
     return InkWell(
       onTap: () {
-        ref.read(mobileWatchHistoryProvider.notifier).markEpisodeWatched(episodeKey);
+        // Watch progress is tracked in player at 80% completion
         Navigator.push(
           context,
           MaterialPageRoute(
@@ -274,6 +274,9 @@ class _MobileSeriesDetailScreenState extends ConsumerState<MobileSeriesDetailScr
               playlist: widget.playlist,
               streamType: StreamType.series,
               containerExtension: episode.containerExtension ?? 'mkv',
+              seriesId: widget.series.seriesId,
+              season: _selectedSeason,
+              episodeNum: episode.episodeNum,
             ),
           ),
         );

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

@@ -28,6 +28,11 @@ class NativePlayerScreen extends ConsumerStatefulWidget {
   final List<Channel>? channels;
   final int initialIndex;
   
+  // For series episodes (to track watch history)
+  final dynamic seriesId;
+  final int? season;
+  final int? episodeNum;
+
   const NativePlayerScreen({
     super.key,
     required this.streamId,
@@ -37,6 +42,9 @@ class NativePlayerScreen extends ConsumerStatefulWidget {
     this.containerExtension,
     this.channels,
     this.initialIndex = 0,
+    this.seriesId,
+    this.season,
+    this.episodeNum,
   });
 
   @override
@@ -63,6 +71,7 @@ class _NativePlayerScreenState extends ConsumerState<NativePlayerScreen> {
   int _reconnectAttempts = 0;
   static const int _maxReconnectAttempts = 5;
   String _currentTime = '';
+  bool _hasMarkedAsWatched = false; // Flag to mark watched only once at 80%
 
   void _resetControlsTimer() {
     _controlsTimer?.cancel();
@@ -145,6 +154,9 @@ class _NativePlayerScreenState extends ConsumerState<NativePlayerScreen> {
     _player.stream.position.listen((position) {
       if (mounted && !_isSeeking) {
         setState(() => _position = position);
+        
+        // Check if 80% of content watched (for VOD/Series only)
+        _checkAndMarkWatched(position);
       }
     });
 
@@ -256,6 +268,37 @@ class _NativePlayerScreenState extends ConsumerState<NativePlayerScreen> {
     });
   }
   
+  /// Check if 80% of content watched and mark as watched
+  void _checkAndMarkWatched(Duration position) {
+    // Skip if already marked, live TV, or no duration
+    if (_hasMarkedAsWatched) return;
+    if (widget.streamType == StreamType.live) return;
+    if (_duration.inSeconds <= 0) return;
+    
+    final progress = position.inSeconds / _duration.inSeconds;
+    
+    if (progress >= 0.80) {
+      _hasMarkedAsWatched = true;
+      debugPrint('MediaKitPlayer: 80% reached, marking as watched');
+      
+      if (widget.streamType == StreamType.vod) {
+        // Mark movie as watched
+        ref.read(mobileWatchHistoryProvider.notifier).markMovieWatched(widget.streamId);
+      } else if (widget.streamType == StreamType.series && 
+                 widget.seriesId != null && 
+                 widget.season != null && 
+                 widget.episodeNum != null) {
+        // Mark episode as watched
+        final episodeKey = MobileWatchHistory.episodeKey(
+          widget.seriesId,
+          widget.season!,
+          widget.episodeNum!,
+        );
+        ref.read(mobileWatchHistoryProvider.notifier).markEpisodeWatched(episodeKey);
+      }
+    }
+  }
+  
   /// Start watchdog timer for live streams
   void _startLiveWatchdog() {
     _liveWatchdog?.cancel();

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

@@ -160,8 +160,7 @@ class _MobileMoviesTabState extends ConsumerState<MobileMoviesTab> with Automati
   }
 
   void _playMovie(Movie movie) {
-    ref.read(mobileWatchHistoryProvider.notifier).markMovieWatched(movie.streamId);
-    
+    // Watch progress is tracked in player at 80% completion
     Navigator.push(
       context,
       MaterialPageRoute(