feat: improve resume optimization and import reliability

backend/tests/test_builder_detail_gate.py

@@ -90,19 +90,21 @@ def test_detail_gate_passes_facts_and_low_confidence_through() -> None:
     assert llm_detail_route(shaky, _profile_with_draft(), "跳过") is None
 
 
-def test_candidate_rewrite_ensure_facts_appends_missing() -> None:
+def test_candidate_rewrite_never_appends_raw_missing_facts() -> None:
     class _Expander:
         def expand(self, entry: dict[str, Any], *, context: dict[str, Any]) -> dict[str, Any]:
-            return {"optimized_description": "主修课程：数据结构、计算机视觉。", "source": "test"}
+            return {
+                "optimized_description": "\u4e3b\u4fee\u8bfe\u7a0b\uff1a\u6570\u636e\u7ed3\u6784\u3001\u8ba1\u7b97\u673a\u89c6\u89c9\u3002",
+                "uncovered_facts": ["GPA: 4.3/5.0"],
+                "source": "test",
+            }
 
-    agent = SimpleNamespace(expander=_Expander())
     proposal = _candidate_rewrite(
-        agent,
+        SimpleNamespace(expander=_Expander()),
         {"job_type": "campus"},
-        {"description": "学习数据结构、计算机视觉课程。GPA: 4.3/5.0，排名前百分之10。"},
+        {"description": "\u5b66\u4e60\u6570\u636e\u7ed3\u6784\u3001\u8ba1\u7b97\u673a\u89c6\u89c9\u8bfe\u7a0b\u3002GPA: 4.3/5.0\u3002"},
         "education",
-        ensure_facts=True,
     )
-    assert "GPA: 4.3/5.0" in proposal["optimized_description"]
-    assert "排名前百分之10" in proposal["optimized_description"]
-    assert proposal["uncovered_facts"] == []
+
+    assert "GPA: 4.3/5.0" not in proposal["optimized_description"]
+    assert proposal["uncovered_facts"] == ["GPA: 4.3/5.0"]