코드체크 업데이트

backend/internal/handler/tenant_handler_test.go

@@ -112,6 +112,7 @@ func (m *MockUserRepoForHandler) Delete(ctx context.Context, id string) error {
 	m.deletedIDs = append(m.deletedIDs, id)
 	return nil
 }
+
 func (m *MockUserRepoForHandler) FindByEmail(ctx context.Context, email string) (*domain.User, error) {
 	return nil, nil
 }