feat(flutter): 播放页互动数量与评论面板收紧

lib/pages/player/player_view.dart

@@ -83,6 +83,9 @@ class _PlayerPageState extends State<PlayerPage> with WidgetsBindingObserver {
   bool _chromeVisible = true;
   double _playbackSpeed = 1.0;
 
+  /// 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 = {};
+
   @override
   void initState() {
     super.initState();
@@ -127,6 +130,14 @@ class _PlayerPageState extends State<PlayerPage> with WidgetsBindingObserver {
     setState(() => _chromeVisible = false);
   }
 
+  /// 收藏状态确认后同步右侧计数（总数没有独立计数接口，按 ±1 跟随）。
+  void _applyFavoriteDelta(String dramaId, {required bool nowSaved}) {
+    setState(() {
+      _favoriteDelta[dramaId] =
+          (_favoriteDelta[dramaId] ?? 0) + (nowSaved ? 1 : -1);
+    });
+  }
+
   @override
   Widget build(BuildContext context) {
     return ListenableBuilder(
@@ -377,9 +388,11 @@ class _PlayerPageState extends State<PlayerPage> with WidgetsBindingObserver {
               episode: episode,
               controller: ready ? videoPort!.controller : null,
               liked: interactions.isLiked(drama.id),
-              likeCount: interactions.likeCount(drama.id),
-              commentCount: null,
-              favoriteCount: null,
+              likeCount: interactions.likeCount(drama.id) ?? drama.likeCount,
+              commentCount: drama.commentCount,
+              favoriteCount: drama.favoriteCount == null
+                  ? null
+                  : drama.favoriteCount! + (_favoriteDelta[drama.id] ?? 0),
               saved: context.watch<FavoriteController>().isSaved(drama.id),
               playing: logic.session.userWantsPlay,
               playbackSpeed: _playbackSpeed,