// GCS URLs
        assertTrue(protocolHelper.isValidFileProtocol("gcs://bucket/"));
        assertTrue(protocolHelper.isValidFileProtocol("gcs://my-bucket/path"));
        assertTrue(protocolHelper.isValidFileProtocol("gcs://bucket.with.dots/path"));
        assertTrue(protocolHelper.isValidFileProtocol("gcs://bucket-with-dashes/path"));

        // Various GCS bucket and path formats
        assertEquals("gcs://bucket/", wizardAction.convertCrawlingPath("gcs://bucket/"));
        assertEquals("gcs://my-bucket/", wizardAction.convertCrawlingPath("gcs://my-bucket/"));
        assertEquals("gcs://bucket.with.dots/path", wizardAction.convertCrawlingPath("gcs://bucket.with.dots/path"));

     * @return true if the URL uses a file path protocol (smb, smb1, file, ftp, s3, gcs)
     */
    public boolean isFilePathProtocol(final String url) {
        return url.startsWith("smb:") || url.startsWith("smb1:") || url.startsWith("file:") || url.startsWith("ftp:")
                || url.startsWith("s3:") || url.startsWith("gcs:");
    }

    /**

    private final Storage storage;
    private final String bucket;

    /**
     * Creates a new GcsStorageClient instance.
     *
     * @param projectId the GCS project ID
     * @param bucket the bucket name
     * @param endpoint the custom endpoint URL (optional, for fake-gcs-server etc.)
     * @param credentialsPath the path to the credentials JSON file (optional)
     */

        url = "gcs://bucket/path/test%E3%81%82.txt";
        exp = "test%E3%81%82.txt";
        assertEquals(exp, transformer.getFileName(url, Constants.UTF_8));

        url = "s3://my-bucket/folder/document.pdf";
        exp = "document.pdf";
        assertEquals(exp, transformer.getFileName(url, Constants.UTF_8));

        url = "gcs://my-bucket/folder/document.pdf";

    /**
     * Storage type for cloud storage (s3, gcs, auto).
     * Determines which storage client to use.
     */
    @Size(max = 20)
    public String storageType;

    /**
     * Storage region for S3.
     * AWS region where the S3 bucket is located.
     */
    @Size(max = 100)
    public String storageRegion;

    /**
     * GCS project ID.
     * Google Cloud project ID for GCS storage.

    public static final String STORAGE_REGION = "storage.region";

    /** Storage project ID configuration key (for GCS). */
    public static final String STORAGE_PROJECT_ID = "storage.project.id";

    /** Storage credentials path configuration key (for GCS). */
    public static final String STORAGE_CREDENTIALS_PATH = "storage.credentials.path";

    // ============================================================

labels.storage_endpoint=端點
labels.storage_access_key=訪問金鑰
labels.storage_secret_key=密鑰
labels.storage_bucket=儲存桶
labels.storage_type=類型
labels.storage_type_auto=自動
labels.storage_type_s3=S3
labels.storage_type_gcs=GCS
labels.storage_region=區域
labels.storage_project_id=專案ID
labels.storage_credentials_path=憑證路徑
labels.general_rag=AI模式
labels.rag_llm_name=LLM供應商
labels.llm_log_level=日誌級別
labels.send_testmail=發送測試郵件

labels.chat_clear=清除
labels.storage_credentials_path=凭证路径
labels.storage_project_id=项目ID
labels.storage_region=区域
labels.storage_type=类型
labels.storage_type_auto=自动
labels.storage_type_gcs=GCS
labels.storage_type_s3=S3
labels.search_file_proxy_enabled=Search File Proxy
labels.search_use_browser_locale=Use Browser Locale
labels.sso_type=SSO Type
labels.crawling_user_agent=User Agent