refactor(logic): 重构 GetServer 函数

- 引入 entity 包中的 Conn 类型，替换 gnet.Conn
- 移除未使用的 import 语句

logic/controller/getserver.go

@@ -1,14 +1,13 @@
 package controller
 
 import (
+	"blazing/common/data/entity"
 	"blazing/common/socket/errorcode"
 	"blazing/logic/service/commendsvr"
-
-	"github.com/panjf2000/gnet/v2"
 )
 
 // 处理命令: 105
-func (h Controller) GetServer(data *commendsvr.SidInfo, c gnet.Conn) (result *commendsvr.CommendSvrInfo, err errorcode.ErrorCode) { //这个时候player应该是空的
+func (h Controller) GetServer(data *commendsvr.SidInfo, c *entity.Conn) (result *commendsvr.CommendSvrInfo, err errorcode.ErrorCode) { //这个时候player应该是空的
 	result = commendsvr.NewInInfo()
 	result.ServerList = commendsvr.GetServerInfoList()
 	return