fix: 修复报告摘要生成并稳定默认端口

tests/unit/test_ai_schema.py

@@ -5,10 +5,12 @@ from app.services.ai_service import (
     AIAnalysisResult,
     OpenAICompatibleAIClient,
     analyze_comments_with_retry,
+    build_report_summary_prompt,
     build_comment_prompt,
     calculate_analysis_status,
     parse_ai_comment_response,
 )
+from app.services.task_service import build_report_summary_provider
 
 
 def test_build_comment_prompt_contains_ids_and_truncates_content():
@@ -20,6 +22,35 @@ def test_build_comment_prompt_contains_ids_and_truncates_content():
     assert "你" * 151 not in prompt
 
 
+def test_build_report_summary_prompt_contains_stats_labels_and_truncated_typical_comments():
+    prompt = build_report_summary_prompt(
+        {
+            "sample_count": 2,
+            "sentiment": {
+                "positive": {"count": 1, "pct": 50.0},
+                "neutral": {"count": 0, "pct": 0.0},
+                "negative": {"count": 1, "pct": 50.0},
+                "unknown": {"count": 0, "pct": 0.0},
+            },
+            "top_labels": [{"name": "价格争议", "count": 2}],
+        },
+        {"positive": [{"content": "好" * 200}], "negative": [{"content": "太贵"}]},
+        word_limit=200,
+    )
+
+    assert "只返回一段中文总结" in prompt
+    assert "样本评论数量：2" in prompt
+    assert "positive: 1 (50.0%)" in prompt
+    assert "价格争议: 2" in prompt
+    assert "好" * 150 in prompt
+    assert "好" * 151 not in prompt
+    assert "JSON Array" not in prompt
+
+
+def test_report_summary_provider_is_disabled_without_real_ai_client():
+    assert build_report_summary_provider(client=None) is None
+
+
 def test_parse_ai_comment_response_validates_array_sentiment_labels_and_ids():
     result = parse_ai_comment_response(
         '[{"comment_id":"c1","sentiment":"positive","labels":["质量好"],"reason":"认可"}]',
@@ -94,6 +125,27 @@ def test_openai_compatible_client_posts_chat_completion_and_returns_message_cont
     assert captured["authorization"] == "Bearer test-ai-key"
     assert '"model":"test-model"' in captured["body"]
     assert "prompt text" in captured["body"]
+    assert "请严格遵循用户指令输出。" in captured["body"]
+
+
+def test_openai_compatible_client_accepts_custom_system_prompt():
+    captured = {}
+
+    def handler(request: httpx.Request) -> httpx.Response:
+        captured["body"] = request.read().decode("utf-8")
+        return httpx.Response(200, json={"choices": [{"message": {"content": "报告摘要"}}]})
+
+    http_client = httpx.Client(transport=httpx.MockTransport(handler))
+    client = OpenAICompatibleAIClient(
+        base_url="https://ai.example.com",
+        api_key="test-ai-key",
+        model="test-model",
+        http_client=http_client,
+    )
+
+    assert client.request("总结 prompt", system_prompt="只返回一段中文总结，不使用 Markdown。") == "报告摘要"
+    assert "只返回一段中文总结" in captured["body"]
+    assert "JSON Array" not in captured["body"]
 
 
 def test_openai_compatible_client_accepts_base_url_that_already_includes_v1():