feat: --retry-uncertain re-diagnoses uncertain rows; fix docstring

tests/unit/test_baseline_diagnosis_store.py

@@ -85,6 +85,33 @@ def test_null_fields_for_infra_row(tmp_path):
     assert rows[0].error_type is None and rows[0].evolution_target is None and rows[0].infra is True
 
 
+def test_done_question_ids_retry_uncertain_excludes(tmp_path):
+    """retry_uncertain=True 时 uncertain 题不算完成（会被重诊），非 uncertain 仍算完成。"""
+    s = _store(tmp_path)
+    # T2（defect）题：已完成
+    s.upsert(
+        DiagnosisSignalRow(
+            "t2_qid", "v1", "run", "fp", "Counting",
+            "search_failure", "defect", "T2", "skill",
+            degraded=False, infra=False, session_id="s",
+        )
+    )
+    # uncertain（degraded）题：信号不可信
+    s.upsert(
+        DiagnosisSignalRow(
+            "uncertain_qid", "v2", "run", "fp", "Counting",
+            None, None, "uncertain", None,
+            degraded=True, infra=False, session_id=None,
+        )
+    )
+    # 默认：两者都算完成
+    assert s.done_question_ids("run", "fp") == {"t2_qid", "uncertain_qid"}
+    # retry_uncertain：uncertain 被排除，T2 仍算完成
+    done = s.done_question_ids("run", "fp", retry_uncertain=True)
+    assert "uncertain_qid" not in done
+    assert "t2_qid" in done
+
+
 def test_context_manager_closes_connection(tmp_path):
     # with 块退出后连接关闭，再操作应报 ProgrammingError
     with SqliteDiagnosisSignalStore(str(tmp_path / "h.db")) as s: