feat: 统一首页与推荐搜索入口

lib/pages/discover/discover_logic.dart

@@ -118,20 +118,6 @@ class DiscoverLogic extends ChangeNotifier {
     searchResults = const [];
   }
 
-  /// 从播放器发起的搜索请求只在剧场页可见时抢焦点。
-  void syncSearch({
-    required bool active,
-    required int request,
-    required int previousRequest,
-    required bool Function() isActive,
-  }) {
-    if (!active || request == previousRequest) return;
-    WidgetsBinding.instance.addPostFrameCallback((_) {
-      if (isActive()) searchFocus.requestFocus();
-    });
-    WidgetsBinding.instance.scheduleFrame();
-  }
-
   void act(
     BuildContext context,
     DiscoverPageAction action, {