feat(player): 倍速改为底部弹窗选择

lib/pages/player/player_logic.dart

@@ -68,6 +68,7 @@ class PlayerLogic extends ChangeNotifier {
   List<Episode> sessionEpisodes = const [];
   int pageRequest = 0;
   bool muted = false;
+  double playbackSpeed = 1.0;
   bool stoppedAtFeedEnd = false;
   VideoPlayerPort? scrubbingPlayer;
   bool pip = false;
@@ -341,6 +342,7 @@ class PlayerLogic extends ChangeNotifier {
   Future<void> preparePlayer(Episode episode, PlayerPort player) async {
     if (player is! VideoPlayerPort) return;
     try {
+      await player.controller.setPlaybackSpeed(playbackSpeed);
       await pendingWrite;
       // 服务端每剧只记一条：只有"记录里的那一集"才定位，其它集从头播
       if (resumePoint == null) await loadResumePoint();
@@ -360,6 +362,7 @@ class PlayerLogic extends ChangeNotifier {
     final index = session.currentIndex;
     final drama = queue.entryAt(index).drama;
     await player.controller.setVolume(muted ? 0 : 1);
+    await player.controller.setPlaybackSpeed(playbackSpeed);
     if (session.active != player) return;
     trackedPlayer = player;
     trackedEpisode = episode;
@@ -787,6 +790,15 @@ class PlayerLogic extends ChangeNotifier {
     notify();
   }
 
+  Future<void> setPlaybackSpeed(double value) async {
+    playbackSpeed = value;
+    final active = session.active;
+    if (active is VideoPlayerPort && active.controller.value.isInitialized) {
+      await active.controller.setPlaybackSpeed(value);
+    }
+    notify();
+  }
+
   Future<void> showComments(BuildContext context, Drama drama) async {
     session.setOverlayOpen(true);
     await session.playbackSettled;