@Test
    public void test_detectIntent_withHistory_usesStructuredMessages() {
        // Set up chat to return a valid JSON response
        client.setChatResponse("{\"intent\":\"search\",\"query\":\"Fess Docker\",\"reasoning\":\"Follow-up about Docker\"}");

        final List<LlmMessage> history = new ArrayList<>();
        history.add(LlmMessage.user("What is Fess?"));

            callback.onPhaseComplete(ChatPhaseCallback.PHASE_INTENT);

            if (logger.isDebugEnabled()) {
                logger.debug("[RAG] Phase {} completed. intent={}, query={}, reasoning={}, phaseElapsedTime={}ms",
                        ChatPhaseCallback.PHASE_INTENT, intentResult.getIntent(), intentResult.getQuery(), intentResult.getReasoning(),
                        System.currentTimeMillis() - phaseStartTime);