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/Domain/Events/GroupRequestUpdateEvent.cs

@@ -0,0 +1,14 @@
+using IM_API.Models;
+
+namespace IM_API.Domain.Events
+{
+    public record GroupRequestUpdateEvent : DomainEvent
+    {
+        public override string EventType => "IM.GROUPS_REQUEST_UPDATE";
+        public int UserId { get; set; }
+        public int GroupId { get; set; }
+        public int AdminUserId { get; set; }
+        public int RequestId { get; set; }
+        public GroupRequestState Action { get; set; }
+    }
+}