Fix NativeVideoStore isBlockingAds for release builds.

build_runner had stripped a hand-patched override from the generated store; implement the VideoPlayerInterface getter on the hand-written base class so assembleRelease succeeds.

Co-authored-by: Cursor <cursoragent@cursor.com>

lib/screens/channel/video/native_video_store.dart

@@ -131,6 +131,12 @@ abstract class NativeVideoStoreBase
   @readonly
   var _blockingAds = false;
 
+  /// Exposes [_blockingAds] via [VideoPlayerInterface.isBlockingAds]
+  /// (must live in the hand-written store — build_runner will strip a
+  /// hand-patched override from the `.g.dart`).
+  @override
+  bool get isBlockingAds => _blockingAds;
+
   @readonly
   var _paused = true;