老师端几乎ok

lib/request/dto/room/room_user_dto.dart

@@ -1,19 +1,20 @@
 class RoomUserDto {
   final int userId;
   final String rtcUid;
-  final int microphoneStatus;
-  final int cameraStatus;
-  final int speekerStatus;
+  int microphoneStatus;
+  int cameraStatus;
+  int speekerStatus;
   final String wsClientId;
   final String userName;
   final String avatar;
+  /// 1是学生，2是老师
   final int userType;
   final List<String> filesList;
   final String dataType;
-  final int handup;
-  final int online; //0离线，1在线
+   int handup;
+  int online; //0离线，1在线
 
-  const RoomUserDto({
+   RoomUserDto({
     required this.userId,
     required this.rtcUid,
     required this.microphoneStatus,