feat: HESUPIPE 公司事实卡(官网硬事实+防编造规则)

Co-Authored-By: Claude Code <noreply@anthropic.com>

tests/test_company_facts.py

@@ -27,15 +27,26 @@ def test_facts_concatenated_between_system_and_context():
     import asyncio
     asyncio.run(svc.chat([{"role": "user", "content": "hi"}], context="⚠️ 提醒"))
     p = svc.provider.prompts[0]
-    assert "Hesu" in p                          # 事实在场
+    assert "HESUPIPE" in p and "HDPE" in p      # 建材事实在场
     assert p.index(SYSTEM_PROMPT) < p.index(COMPANY_FACTS) < p.index("⚠️ 提醒")
 
 
 def test_facts_absent_from_extractor_prompt():
     # extractor/evaluator 不拼事实卡(它们有自己的 prompt,不该看到公司事实)
     from app.services.ai_service import EVALUATOR_PROMPT, EXTRACTOR_PROMPT
-    assert "Hesu" not in EXTRACTOR_PROMPT
-    assert "Hesu" not in EVALUATOR_PROMPT
+    assert "HESUPIPE" not in EXTRACTOR_PROMPT
+    assert "HDPE" not in EXTRACTOR_PROMPT
+    assert "HESUPIPE" not in EVALUATOR_PROMPT
+    assert "HDPE" not in EVALUATOR_PROMPT
+
+
+def test_facts_no_auto_words():
+    # 建材化红线: 事实卡不得残留汽车项目词汇
+    # (只查 COMPANY_FACTS——SYSTEM_PROMPT 属 Task 3,不在本测试管辖)
+    for word in ("BYD", "Hesu Auto", "Toyota"):
+        assert word not in COMPANY_FACTS, word
+    for word in ("vehicle", "sedan", "suv"):
+        assert word not in COMPANY_FACTS.lower(), word
 
 
 from app.services.boundary_filter import (