fix(regulatory): 为LLM复核超时增加重试

tests/test_regulatory_llm_review.py

@@ -1,6 +1,6 @@
 import json
 
-from review_agent.regulatory_review.services.llm_review import review_condition_fields
+from review_agent.regulatory_review.services.llm_review import review_condition_fields, review_workflow_payload
 
 
 def test_review_condition_fields_selects_more_complete_llm_product_name():
@@ -55,3 +55,39 @@ def test_review_condition_fields_rejects_garbled_llm_product_name():
 
     assert result["selected_fields"]["产品名称"] == "呼吸道合胞病毒、肺炎支原体核酸检测试剂盒（荧光PCR法）"
     assert result["selected_sources"]["产品名称"] == "rule"
+
+
+def test_review_workflow_payload_handles_timeout_without_raising():
+    def completion(messages, temperature=0.0):
+        raise TimeoutError("The read operation timed out")
+
+    result = review_workflow_payload(
+        stage="completeness_check",
+        payload={"findings": []},
+        completion_func=completion,
+    )
+
+    assert result["status"] == "failed"
+    assert result["stage"] == "completeness_check"
+    assert "timed out" in result["error_message"]
+
+
+def test_review_workflow_payload_retries_timeout_before_success(settings):
+    settings.REGULATORY_LLM_REVIEW_RETRY_DELAY_SECONDS = 0
+    attempts = {"count": 0}
+
+    def completion(messages, temperature=0.0):
+        attempts["count"] += 1
+        if attempts["count"] < 3:
+            raise TimeoutError("The read operation timed out")
+        return json.dumps({"reviewed": True})
+
+    result = review_workflow_payload(
+        stage="completeness_check",
+        payload={"findings": []},
+        completion_func=completion,
+    )
+
+    assert attempts["count"] == 3
+    assert result["status"] == "success"
+    assert result["result"]["reviewed"] is True