model_not_found: 'The AI model was not found. Please contact the administrator.',
                invalid_response: 'Received an invalid response from the AI service. Please try again.',
                connection_error: 'Unable to connect to the AI service. Please check the network connection.',
                unknown: 'An error occurred. Please try again.'
            }
        }
    };

    var state = {

errors.app.illegal.transition = Illegal transition. Please try again.
errors.app.db.already.deleted = It may have been deleted by another process. Please try again.
errors.app.db.already.updated = It may have been updated by another process. Please try again.
errors.app.db.already.exists = The data already exists. Please try again.
errors.app.double.submit.request = It may have been processed before this request. Please try again.

errors.app.illegal.transition = Illegal transition. Please try again.
errors.app.db.already.deleted = It may have been deleted by another process. Please try again.
errors.app.db.already.updated = It may have been updated by another process. Please try again.
errors.app.db.already.exists = The data already exists. Please try again.
errors.app.double.submit.request = It may have been processed before this request. Please try again.

                    cipherAlgorithm);
            inver = InvertibleCryptographer.createBlowfishCipher(fessConfig.getAppCipherKey());
        } else if ("des".equalsIgnoreCase(cipherAlgorithm)) {
            logger.warn("DES cipher is deprecated due to its 56-bit key size vulnerability. Please consider migrating to AES. algorithm={}",

labels.chat_error=An error occurred. Please try again.
labels.chat_error_rate_limit=It's currently busy. Please wait a moment and try again.
labels.chat_error_auth=AI service authentication failed. Please contact the administrator.
labels.chat_error_service_unavailable=The AI service is temporarily unavailable. Please try again later.
labels.chat_error_timeout=The request timed out. Please try again.

#### API Compatibility Mode

> **Note**: GSA-compatible search API support may vary by Fess version. The configuration import feature is fully supported, but for GSA-compatible search endpoints, please consult the official Fess documentation for your specific version.

For applications still sending queries to GSA endpoints, Fess provides a configuration option:

**Enable GSA API**

Add to `system.properties`:

        response.setHeader("Retry-After", String.valueOf(RETRY_AFTER_SECONDS));
        response.getWriter()
                .write("{\"response\":{\"status\":9,\"message\":\"Server is busy. Please retry after " + RETRY_AFTER_SECONDS
                        + " seconds.\",\"retry_after\":" + RETRY_AFTER_SECONDS + "}}");
    }

        response.setHeader("Retry-After", String.valueOf(retryAfterSeconds));
        response.getWriter()
                .write("{\"error\":\"rate_limit_exceeded\",\"message\":\"Too many requests. Please retry after " + retryAfterSeconds
                        + " seconds.\",\"retry_after\":" + retryAfterSeconds + "}");
    }

    public static final String ERRORS_APP_DB_ALREADY_UPDATED = "{errors.app.db.already.updated}";

    /** The key of the message: The data already exists. Please try again. */
    public static final String ERRORS_APP_DB_ALREADY_EXISTS = "{errors.app.db.already.exists}";

    /** The key of the message: It may have been processed before this request. Please try again. */

    /** The key of the message: An error occurred. Please try again. */
    public static final String LABELS_chat_error = "{labels.chat_error}";

    /** The key of the message: It's currently busy. Please wait a moment and try again. */
    public static final String LABELS_chat_error_rate_limit = "{labels.chat_error_rate_limit}";

    /** The key of the message: AI service authentication failed. Please contact the administrator. */