1.完成查看录像模块功能

2.完成录像页面播放视频功能

lib/features/auth/view_model_auth/view_model_auth.dart

@@ -5,6 +5,7 @@ import 'package:jwt_decoder/jwt_decoder.dart';
 import 'package:recording_tool/core/cache/app_storage.dart';
 import 'package:recording_tool/core/cache/storage_keys.dart';
 import 'package:recording_tool/core/network/api_exception.dart';
+import 'package:recording_tool/features/auth/model/model_auth.dart';
 import 'package:recording_tool/features/auth/model/model_jwt.dart';
 import 'package:recording_tool/features/auth/server/server_auth.dart';
 import 'package:recording_tool/features/auth/state/state_auth.dart';
@@ -72,6 +73,13 @@ class AuthViewModel extends StateNotifier<AuthState> {
     return true;
   }
 
+  /// 获取指定目录的录像列表（不更新 state，用于目录下钻）
+  Future<List<RecordListItem>?> fetchRecordList(String path) async {
+    if (path.isEmpty) return null;
+    final data = await AuthServer.getRecordList(_ref, path);
+    return data?.items;
+  }
+
   /// 清空授权信息（本地 token + 内存状态）
   Future<void> clearAuth() async {
     await AppStorage.remove(StorageKeys.authToken);