feat(flutter): 接入分类记录收藏与下载授权

lib/pages/player/player_view.dart

@@ -16,6 +16,7 @@ import '../../core/data/services/video_player_port.dart';
 import '../../core/formatting/error_text.dart';
 import '../../core/formatting/localized_content.dart';
 import '../../core/widgets/auth_gate.dart';
+import '../../core/widgets/download_action.dart';
 import '../../l10n/app_localizations.dart';
 import 'player_binding.dart';
 import 'player_logic.dart';
@@ -360,6 +361,7 @@ class _PlayerPageState extends State<PlayerPage> with WidgetsBindingObserver {
                 );
               }
             },
+            onDownload: () => requestEpisodeDownload(context, episode.id),
             onComments: () => logic.showComments(context, drama),
             onShare: () => logic.shareDrama(context, drama),
             onClear: () => logic.setScreenCleared(true),
@@ -523,6 +525,7 @@ class _PlaybackOverlay extends StatelessWidget {
     required this.onMy,
     required this.onLike,
     required this.onSave,
+    required this.onDownload,
     required this.onComments,
     required this.onShare,
     required this.onClear,
@@ -544,6 +547,7 @@ class _PlaybackOverlay extends StatelessWidget {
   final VoidCallback onMy;
   final VoidCallback onLike;
   final VoidCallback onSave;
+  final VoidCallback onDownload;
   final VoidCallback onComments;
   final VoidCallback onShare;
   final VoidCallback onClear;
@@ -665,6 +669,12 @@ class _PlaybackOverlay extends StatelessWidget {
         selected: saved,
         onTap: onSave,
       ),
+      _RailAction(
+        key: const Key('rail-download'),
+        icon: Icons.download_outlined,
+        label: l10n.downloads,
+        onTap: onDownload,
+      ),
       _RailAction(
         icon: Icons.grid_view_rounded,
         label: l10n.episodes,