assertEquals("user", messages.get(3).getRole());
        assertTrue(messages.get(3).getContent().contains("More details please"));
    }

    @Test
    public void test_detectIntent_noneMode_userOnlyHistory() {
        // End-to-end test: mode=none produces user-only history
        client.setChatResponse("{\"intent\":\"search\",\"query\":\"Fess Docker details\",\"reasoning\":\"Follow-up\"}");