assertTrue(messages.get(2).getContent().contains("Follow-up"));
    }

    // ========== P5: buildContext HTML stripping tests ==========

    @Test
    public void test_buildContext_stripsHtmlTags() {
        final List<Map<String, Object>> documents = new ArrayList<>();
        final Map<String, Object> doc = new HashMap<>();
        doc.put("title", "Test Doc");