允许用户调用修改TCP/TLS接口；新增server.tcp.port功能；增加检查端口是否使用接口

internal/db/models/user_features.go

@@ -25,6 +25,11 @@ var (
 			Code:        "server.tcp",
 			Description: "用户可以添加TCP/TLS负载均衡服务",
 		},
+		{
+			Name:        "自定义负载均衡端口",
+			Code:        "server.tcp.port",
+			Description: "用户可以自定义TCP端口",
+		},
 		{
 			Name:        "开启WAF",
 			Code:        "server.waf",