[feat] 新增WeChat 绑定提示

errno.go

@@ -70,6 +70,8 @@ var (
 	ErrUserReadAuth         = &Errno{Code: 20304, Msg: "无查询权限"}
 	ErrUserWriteAuth        = &Errno{Code: 20305, Msg: "无写入权限"}
 	ErrUserIncomplete       = &Errno{Code: 20306, Msg: "用户信息不完善"}
+	ErrUserWechatBound      = &Errno{Code: 20307, Msg: "该用户已绑定微信号"}
+	ErrUserWechatPhoneBound = &Errno{Code: 20308, Msg: "该微信号已绑定手机"}
 
 	// 审批错误, 前缀是 204
 	// 审批节点不存在