logger.warn("[RAG] Failed to process chat request. message={}", e.getMessage(), e);
            writeJsonResponse(response, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, createErrorResponse("Internal server error"));
        }
    }

    /**
     * Processes a streaming chat request using Server-Sent Events (SSE).
     * Uses the enhanced multi-phase RAG flow with intent detection and result evaluation.

     * Path to the service account credentials JSON file.
     */
    @Size(max = 1000)
    public String storageCredentialsPath;

    /**
     * RAG LLM provider name.
     * Selects which LLM client to use for RAG operations.
     */
    @Size(max = 100)
    public String ragLlmName;

    /**
     * LLM log level.
     * Controls the logging level for LLM-related packages.
     */

#                                                  RAG Chat
#                                                     ------

# Whether RAG chat feature is enabled.
rag.chat.enabled=false


# Chat generation settings.
rag.chat.context.max.documents=5

# Session settings.
rag.chat.session.timeout.minutes=30
rag.chat.session.max.size=10000
rag.chat.history.max.messages=30

    /** The key of the configuration. e.g. 500 */
    String RAG_CHAT_HIGHLIGHT_FRAGMENT_SIZE = "rag.chat.highlight.fragment.size";

    /** The key of the configuration. e.g. 3 */
    String RAG_CHAT_HIGHLIGHT_NUMBER_OF_FRAGMENTS = "rag.chat.highlight.number.of.fragments";

    /** The key of the configuration. e.g. smart_summary */

    /** Storage type configuration key (s3, gcs, auto). */
    public static final String STORAGE_TYPE = "storage.type";

    /** RAG LLM name configuration key. */
    public static final String RAG_LLM_NAME = "rag.llm.name";

    /** Storage region configuration key (for S3). */
    public static final String STORAGE_REGION = "storage.region";

                                                 styleClass="form-control"/>
                                    </div>
                                </div>
                                    <%-- RAG --%>
                                <c:if test="${ragEnabled}">
                                <h4><la:message key="labels.general_rag"/></h4>
                                <div class="form-group row">