<la:option value="INFO">INFO</la:option>
                                            <la:option value="DEBUG">DEBUG</la:option>
                                            <la:option value="TRACE">TRACE</la:option>
                                            <la:option value="ALL">ALL</la:option>
                                        </la:select>
                                    </div>

     *
     * @return true if RAG chat is available
     */
    public boolean isAvailable() {
        final boolean available = llmClientManager.available();
        if (logger.isTraceEnabled()) {
            logger.trace("[RAG] ChatClient availability check. available={}", available);
        }
        return available;
    }

    /**
     * Performs a chat request with RAG.
     *