feat: phone validation

backend_v1/app/services/users.go

@@ -60,7 +60,6 @@ func (m *users) PostList(
 	pagePosts, cnt, err := query.Select(tbl.PostID).
 		Where(tbl.UserID.Eq(userId)).
 		FindByPage(int(pagination.Offset()), int(pagination.Limit))
-
 	if err != nil {
 		return nil, err
 	}
@@ -211,3 +210,9 @@ func (m *users) Count(ctx context.Context, conds ...gen.Condition) (int64, error
 	}
 	return query.Count()
 }
+
+// FindByPhone
+func (m *users) FindByPhone(ctx context.Context, phone string) (*models.User, error) {
+	tbl, query := models.UserQuery.QueryContext(ctx)
+	return query.Where(tbl.Phone.Eq(phone)).First()
+}