fix(player): 修正飘心Overlay生命周期

lib/pages/player/widgets/player_heart_overlay_scope.dart

@@ -0,0 +1,52 @@
+// Author: fruit.com.cn
+
+import 'package:flutter/foundation.dart';
+import 'package:flutter/widgets.dart';
+
+/// Tracks heart overlays for the lifetime of one player page.
+class PlayerHeartOverlayController {
+  final Map<int, OverlayEntry> _entries = {};
+
+  void track(int id, OverlayEntry entry) {
+    _entries[id] = entry;
+  }
+
+  void untrack(int id) {
+    _entries.remove(id);
+  }
+
+  void dispose() {
+    for (final entry in _entries.entries.toList()) {
+      if (entry.value.mounted) entry.value.remove();
+      entry.value.dispose();
+      if (kDebugMode) {
+        debugPrint(
+          '[player] phase=heart-burst-entry-removed '
+          'id=${entry.key} reason=page-dispose',
+        );
+      }
+    }
+    _entries.clear();
+  }
+}
+
+class PlayerHeartOverlayScope extends InheritedWidget {
+  const PlayerHeartOverlayScope({
+    super.key,
+    required this.controller,
+    required super.child,
+  });
+
+  final PlayerHeartOverlayController controller;
+
+  static PlayerHeartOverlayController? maybeOf(BuildContext context) {
+    return context
+        .dependOnInheritedWidgetOfExactType<PlayerHeartOverlayScope>()
+        ?.controller;
+  }
+
+  @override
+  bool updateShouldNotify(PlayerHeartOverlayScope oldWidget) {
+    return controller != oldWidget.controller;
+  }
+}