*/
    public static StorageClient createClient() {
        return createClient(ComponentUtil.getFessConfig());
    }

    /**
     * Parses a storage type string to StorageType enum.
     *
     * @param typeStr the type string (s3, gcs, s3_compat, auto)
     * @return parsed StorageType
     */
    private static StorageType parseStorageType(final String typeStr) {