fix: 修改多个处理函数的返回类型为指针类型，以提高内存使用效率并避免不必要的拷贝

handler/exec/exec.go

@@ -18,7 +18,7 @@ func init() {
 	handler.RegisterHelpInform("reboot", "docker", "reboot 重启环境")
 }
 
-func runInDocker(msg model.Message) (reply model.Reply) {
+func runInDocker(msg model.Message) (reply *model.Reply) {
 	token := util.SplitN(msg.RawMsg, 2)
 	if len(token) < 2 {
 		reply.ReplyMsg = "Usage: exec <command>"
@@ -47,7 +47,7 @@ func runInDocker(msg model.Message) (reply model.Reply) {
 	}
 }
 
-func restartDocker(msg model.Message) (reply model.Reply) {
+func restartDocker(msg model.Message) (reply *model.Reply) {
 	if err := exec.DockerContainer.RestartAndCleanContainer(); err != nil {
 		reply.ReplyMsg = "Error: " + err.Error()
 		reply.ReferOriginMsg = true