*/
    public ChatClient() {
        // Default constructor
    }

    /**
     * Checks if RAG chat is available.
     *
     * @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);
        }

        } else if (logger.isDebugEnabled()) {
            logger.debug("{} availability check completed. available={}", getName(), currentState);
        }
    }

    @Override
    public boolean isAvailable() {
        if (cachedAvailability != null) {
            return cachedAvailability;
        }
        return checkAvailabilityNow();
    }

    /**