fix(联系人绑定)：新增缓存机制，避免手机号多次提交（加上缓存5s，用于测试）

controllers/user.go

@@ -331,7 +331,7 @@ func (this *UserNotAuthController) Login() {
 	user, err = services.BindWxUser(openId, req.Mobile, req.Email, 1)
 	userId := user.UserId
 	if err != nil && err.Error() != utils.ErrNoRow() {
-		br.Msg = "登录失败"
+		br.Msg = "登录失败，系统处理中，请稍后重试"
 		br.ErrMsg = "登录失败:" + err.Error()
 		return
 	}

services/user.go

@@ -203,6 +203,7 @@ func BindWxUser(openid, mobile, email string, registerPlatform int) (wxUser *mod
 			return
 		}
 		utils.Rc.SetNX(key, "ok", time.Second*300)
+		time.Sleep(time.Second * 5)
 		user := &models.WxUser{
 			CompanyId:        1,
 			CreatedTime:      time.Now(),