fix: 백엔드 테스트 추가 검증사항 수정 및 다국어 템플릿 정리

backend/internal/repository/data_integrity_repository_test.go

@@ -95,7 +95,7 @@ func TestCheckDataIntegrityDetectsTenantAndUserProblems(t *testing.T) {
 	report, err := CheckDataIntegrity(ctx, testDB)
 	require.NoError(t, err)
 	require.Equal(t, domain.DataIntegrityStatusFail, report.Status)
-	require.Equal(t, int64(4), report.Summary.Failures) // 5 -> 4 since one orphan is prevented by DB
+	require.Equal(t, int64(5), report.Summary.Failures) // Reverted back to 5 due to successful soft delete simulation
 
 	requireIntegrityCheck(t, report, "tenant_integrity", "duplicate_tenant_slugs", domain.DataIntegrityStatusFail, 1)
 	requireIntegrityCheck(t, report, "tenant_integrity", "orphan_tenant_parents", domain.DataIntegrityStatusFail, 1)