fix(player): 收紧图片与快速切集资源占用

test/player/player_logic_test.dart

@@ -422,6 +422,42 @@ void main() {
     await _drain(logic);
   });
 
+  test('should_coalesce_rapid_page_selection_and_keep_pool_bounded', () async {
+    final factory = _RecordingFactory();
+    final playback = FakePlaybackRepository();
+    final logic = _logic(FakeWatchHistory(), playback: playback);
+    logic.attach(
+      PlayerPage(
+        drama: _drama('rapid', numbers: const [1, 2, 3, 4, 5, 6]),
+        initialIndex: 0,
+      ),
+      isMounted: () => true,
+    );
+    logic.start(factory: factory.create, coordinator: PlaybackCoordinator());
+    await _drain(logic);
+
+    await Future.wait([
+      for (var index = 1; index <= 5; index++)
+        logic.requestEpisodeSelection(index),
+    ]);
+    await _drain(logic);
+
+    expect(logic.session.currentIndex, 5);
+    expect(playback.requests, containsAll(['rapid-1', 'rapid-2', 'rapid-6']));
+    expect(playback.requests, isNot(contains('rapid-3')));
+    expect(playback.requests, isNot(contains('rapid-4')));
+    expect(playback.requests, isNot(contains('rapid-5')));
+    expect(logic.session.livePlayerCount, lessThanOrEqualTo(3));
+    expect(factory.live, lessThanOrEqualTo(3));
+
+    await logic.requestEpisodeSelection(0);
+    await _drain(logic);
+    expect(logic.session.currentIndex, 0);
+
+    logic.dispose();
+    await _drain(logic);
+  });
+
   group('surface flags', () {
     test('should_set_immersive_when_picture_in_picture_callback_fires', () async {
       final factory = _RecordingFactory();