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/Application/EventHandlers/GroupRequestHandler/GroupRequestSignalRHandler.cs

@@ -1,13 +1,17 @@
 using IM_API.Domain.Events;
+using IM_API.Hubs;
 using MassTransit;
+using Microsoft.AspNetCore.SignalR;
 
 namespace IM_API.Application.EventHandlers.GroupRequestHandler
 {
-    public class GroupRequestSignalRHandler : IConsumer<GroupRequestEvent>
+    public class GroupRequestSignalRHandler(IHubContext<ChatHub> hubContext) : IConsumer<GroupRequestEvent>
     {
-        Task IConsumer<GroupRequestEvent>.Consume(ConsumeContext<GroupRequestEvent> context)
+        private readonly IHubContext<ChatHub> _hub = hubContext;
+
+        public async Task Consume(ConsumeContext<GroupRequestEvent> context)
         {
-            throw new NotImplementedException();
+
         }
     }
 }