fix(agent): 增强 LLM 流式回复兜底

review_agent/llm.py

@@ -1,4 +1,5 @@
 import json
+import logging
 from urllib import error, request
 
 from django.conf import settings
@@ -12,6 +13,9 @@ class LLMRequestError(RuntimeError):
     """Raised when the remote LLM provider call fails."""
 
 
+logger = logging.getLogger(__name__)
+
+
 def generate_reply(conversation, user_message: str) -> str:
     """Calls the SiliconFlow OpenAI-compatible chat endpoint and returns assistant text."""
 
@@ -130,7 +134,11 @@ def stream_reply(conversation, user_message: str):
                 data = line[5:].strip()
                 if data == "[DONE]":
                     break
-                payload = json.loads(data)
+                try:
+                    payload = json.loads(data)
+                except json.JSONDecodeError:
+                    logger.warning("Skipping malformed LLM stream data", extra={"data": data[:200]})
+                    continue
                 delta = (
                     payload.get("choices", [{}])[0]
                     .get("delta", {})