fix: 使用点击序号防止双击误暂停

lib/pages/player/player_view.dart

@@ -120,8 +120,7 @@ class _PlayerPageState extends State<PlayerPage>
   bool _scrubbing = false;
   double? _speedBeforeBoost;
   bool? _chromeBeforeBoost;
-  bool _doubleTapHandling = false;
-  Timer? _doubleTapGuardTimer;
+  DateTime? _lastDoubleTapAt;
 
   /// 收藏切换后的本地增量：基准是详情快照，切换成功按服务端状态 ±1。
   final Map<String, int> _favoriteDelta = {};
@@ -263,7 +262,6 @@ class _PlayerPageState extends State<PlayerPage>
     appRouteObserver.unsubscribe(this);
     _spriteAxisService.dispose();
     _thumbnailService.dispose();
-    _doubleTapGuardTimer?.cancel();
     logic.dispose();
     super.dispose();
   }
@@ -336,7 +334,7 @@ class _PlayerPageState extends State<PlayerPage>
   }
 
   void _handleFeedSurfaceTap() {
-    if (_scrubbing || _doubleTapHandling) return;
+    if (_scrubbing || _doubleTapGuardActive) return;
     if (!_chromeVisible) {
       _restoreFeedChrome();
       return;
@@ -345,20 +343,23 @@ class _PlayerPageState extends State<PlayerPage>
   }
 
   void _togglePlayback() {
-    if (_doubleTapHandling) return;
+    if (_doubleTapGuardActive) return;
     logic.session.setUserWantsPlay(!logic.session.userWantsPlay);
   }
 
+  bool get _doubleTapGuardActive {
+    final lastDoubleTapAt = _lastDoubleTapAt;
+    return lastDoubleTapAt != null &&
+        DateTime.now().difference(lastDoubleTapAt) <
+            const Duration(milliseconds: 350);
+  }
+
   void _handleDoubleTapLike(
     BuildContext context,
     InteractionController interactions,
     Episode episode,
   ) {
-    _doubleTapHandling = true;
-    _doubleTapGuardTimer?.cancel();
-    _doubleTapGuardTimer = Timer(const Duration(milliseconds: 300), () {
-      _doubleTapHandling = false;
-    });
+    _lastDoubleTapAt = DateTime.now();
     unawaited(_toggleLike(context, interactions, episode, likeOnly: true));
   }