feat(app): 播放器增加清晰度档位入口

lib/pages/player/player_logic.dart

@@ -72,6 +72,7 @@ class PlayerLogic extends ChangeNotifier {
   PlayTicket? blockedTicket;
   String? blockedEpisodeId;
   List<Episode> sessionEpisodes = const [];
+  List<String> qualities = const [];
   int pageRequest = 0;
   bool muted = false;
   double playbackSpeed = 1.0;
@@ -217,6 +218,7 @@ class PlayerLogic extends ChangeNotifier {
       if (localPath != null) {
         blockedTicket = null;
         blockedEpisodeId = null;
+        qualities = const [];
         sessionEpisodes[index] = episode.withVideoUrl(_fileUrl(localPath));
         return true;
       }
@@ -227,6 +229,7 @@ class PlayerLogic extends ChangeNotifier {
       if (request != pageRequest) return false;
       blockedTicket = null;
       blockedEpisodeId = null;
+      qualities = ticket.qualities;
       if (ticket.accessible && ticket.playUrl.isNotEmpty) {
         // 签名地址原样写回，不做任何拼接/改写（AppConfig.mediaUrl 只补 host）
         sessionEpisodes[index] = episode.withVideoUrl(ticket.playUrl);