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/drawback/drawback.go

@@ -13,17 +13,17 @@ func init() {
 	handler.RegisterHelpInform("撤回", "drawback", "发送 <引用消息>撤回 撤回消息")
 }
 
-func drawback(msg model.Message) model.Reply {
+func drawback(msg model.Message) *model.Reply {
 	msgIdToDrawback := message.ReplyMessage{}
 	if err := msgIdToDrawback.ParseMessage(msg.RawMsg); err != nil {
-		return model.Reply{
+		return &model.Reply{
 			ReplyMsg:       "",
 			ReferOriginMsg: false,
 			FromMsg:        msg,
 		}
 	}
 	action.ActionManager.DrawbackMsg(int32(msgIdToDrawback.Data.ID))
-	return model.Reply{
+	return &model.Reply{
 		ReplyMsg:       "",
 		ReferOriginMsg: false,
 		FromMsg:        msg,