assertTrue(result.contains("...[omitted]..."));
        assertTrue(result.contains("[Referenced documents: Test Doc]"));
        // Head (300) + omitted marker + tail (200) + source titles
        assertTrue(result.length() < 1000);
    }

    @Test
    public void test_buildAssistantHistoryContent_smartSummary_shortContent() {

re{content:"\f59e"}.fa-male:before{content:"\f183"}.fa-mandalorian:before{content:"\f50f"}.fa-map:before{content:"\f279"}.fa-map-marked:before{content:"\f59f"}.fa-map-marked-alt:before{content:"\f5a0"}.fa-map-marker:before{content:"\f041"}.fa-map-marker-alt:before{content:"\f3c5"}.fa-map-pin:before{content:"\f276"}.fa-map-signs:before{content:"\f277"}.fa-markdown:before{content:"\f60f"}.fa-marker:before{content:"\f5a1"}.fa-mars:before{content:"\f222"}.fa-mars-double:before{content:"\f227"}.fa-ma...

                    .collect(Collectors.toList());
            return RelevanceEvaluationResult.fallbackAllRelevant(allDocIds);
        }
    }

    /**
     * Strips code fence markers from JSON response.
     *
     * @param response the response that may contain code fences
     * @return the response with code fences removed
     */
    protected String stripCodeFences(final String response) {

re{content:"\f59e"}.fa-male:before{content:"\f183"}.fa-mandalorian:before{content:"\f50f"}.fa-map:before{content:"\f279"}.fa-map-marked:before{content:"\f59f"}.fa-map-marked-alt:before{content:"\f5a0"}.fa-map-marker:before{content:"\f041"}.fa-map-marker-alt:before{content:"\f3c5"}.fa-map-pin:before{content:"\f276"}.fa-map-signs:before{content:"\f277"}.fa-markdown:before{content:"\f60f"}.fa-marker:before{content:"\f5a1"}.fa-mars:before{content:"\f222"}.fa-mars-double:before{content:"\f227"}.fa-ma...