feat: add h5 account auth flow

src/main/java/xuan/repository/UserInfoRepository.java

@@ -8,4 +8,5 @@ import xuan.entity.UserInfo;
 public interface UserInfoRepository extends JpaRepository<UserInfo, Long> {
     UserInfo findByOpenId(String openId);
     UserInfo findByUserId(String userId);
+    UserInfo findByLoginName(String loginName);
 }