后端：

1、事件订阅增加rabbitmq中间件
移动端：
1、完善移动端目录结构和代码框架

backend/IM_API/appsettings.json

@@ -16,5 +16,11 @@
   "ConnectionStrings": {
     "DefaultConnection": "Server=frp-era.com;Port=26582;Database=IM;User=product;Password=12345678;",
     "Redis": "192.168.5.100:6379"
+  },
+  "RabbitMQOptions": {
+    "Host": "192.168.5.100",
+    "Port": 5672,
+    "Username": "test",
+    "Password": "123456"
   }
 }