前端：

1、完善创建群聊逻辑
后端：
1、完善群聊相关接口

backend/IM_API/Interface/Services/IGroupService.cs

@@ -1,4 +1,5 @@
 using IM_API.Dtos.Group;
+using IM_API.Models;
 
 namespace IM_API.Interface.Services
 {
@@ -43,6 +44,12 @@ namespace IM_API.Interface.Services
         /// <param name="desc"></param>
         /// <returns></returns>
         Task<List<GroupInfoDto>> GetGroupListAsync(int userId, int page, int limit, bool desc);
+
         Task UpdateGroupConversationAsync(GroupUpdateConversationDto dto);
+
+        Task HandleGroupInviteAsync(int userid, HandleGroupInviteDto dto);
+        Task HandleGroupRequestAsync(int userid, HandleGroupRequestDto dto);
+        Task MakeGroupRequestAsync(int userId,int? adminUserId,int groupId);
+        Task MakeGroupMemberAsync(int userId, int groupId, GroupMemberRole? role);
     }
 }