testData.clear();
        testData.add(createRelatedQuery("test", new String[] { "updated" }, ""));
        mockBhv.setTestData(testData);

        relatedQueryHelper.update();
        // Give a moment for async execution
        try {
            Thread.sleep(100);
        } catch (InterruptedException e) {
            // ignore
        }

        results = relatedQueryHelper.getRelatedQueries("test");

            } catch (InterruptedException e) {
                Thread.currentThread().interrupt();
            }
        });
        writerThread.start();

        // Give threads a moment to reach the latch
        Thread.sleep(50);

        // Release all threads to start simultaneously
        startLatch.countDown();

        // Wait for writer thread to complete

        testData.clear();
        testData.add(createRelatedContent("test", "Updated Content", ""));
        mockBhv.setTestData(testData);

        relatedContentHelper.update();
        // Give a moment for async execution
        try {
            Thread.sleep(100);
        } catch (InterruptedException e) {
            // ignore
        }

        results = relatedContentHelper.getRelatedContents("test");

labels.chat_new_chat=New Chat
labels.chat_input_placeholder=Ask a question...
labels.chat_thinking=Thinking...
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.

                fetch: 'Retrieving content...',
                answer: 'Generating answer...'
            },
            errors: {
                rate_limit: 'It\'s currently busy. Please wait a moment and try again.',
                auth_error: 'AI service authentication failed. Please contact the administrator.',
                service_unavailable: 'The AI service is temporarily unavailable. Please try again later.',

labels.chat_new_chat=New Chat
labels.chat_input_placeholder=Ask a question...
labels.chat_thinking=Thinking...
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_thinking=Réflexion en cours...
labels.chat_error=Une erreur s'est produite. Veuillez réessayer.
labels.chat_error_rate_limit=Le service est actuellement surchargé. Veuillez patienter un moment et réessayer.
labels.chat_error_auth=L'authentification au service IA a échoué. Veuillez contacter l'administrateur.
labels.chat_error_service_unavailable=Le service IA est temporairement indisponible. Veuillez réessayer plus tard.

    /** 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. */

labels.chat_thinking=Denkt nach...
labels.chat_error=Ein Fehler ist aufgetreten. Bitte versuchen Sie es erneut.
labels.chat_error_rate_limit=Es ist derzeit sehr ausgelastet. Bitte warten Sie einen Moment und versuchen Sie es erneut.
labels.chat_error_auth=Die Authentifizierung beim KI-Dienst ist fehlgeschlagen. Bitte kontaktieren Sie den Administrator.

     * The value is, e.g. Fess <br>
     * comment: The title of the domain for logging and display.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getDomainTitle();

    /**
     * Get the value for the key 'search_engine.type'. <br>
     * The value is, e.g. default <br>
     * comment: The type of search engine backend (e.g., default, opensearch).