fix(site-import): specs_published 严格 is True 判定（字符串false防静默错分支）

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

tests/test_site_import_generator.py

@@ -401,3 +401,21 @@ class TestTimeout:
 
         with pytest.raises(generator.GenerateError):
             await generator.analyze(Slow(), "页面文本")
+
+
+class TestSpecsStrictBool:
+    async def test_字符串false走不公开分支(self):
+        """评审 #1：LLM 回字符串 "false" 时 bool() 强转为 True 会静默走规格公开分支——
+        is True 严格判定后字符串形态一律 fail-safe 到不公开。"""
+        import json as _json
+        analysis = _json.loads(_json.dumps({
+            "company_name": "X", "product_lines": [{"name": "p", "points": []}],
+            "specs_published": "false"}))
+        gen = dict(_MIN_GEN) if "_MIN_GEN" in globals() else {
+            "身份描述": "你是销售", "产品统称": "产品", "产品统称EN": "products",
+            "产品类别清单": "产品", "规格追问三要素": "场景", "好差示例组": "示例",
+            "关注信息": "信息", "固定追问句": "问句", "推荐建议": "建议"}
+        draft = generator.build(gen, analysis, CRAWL, SOURCE_TEXT)
+        facts = draft["prompts"]["company_facts"]
+        assert ("参数未公布" in facts) or ("兜底" in facts)
+        assert any(w.startswith("规格判定：不公开") for w in draft["warnings"])