fix: TimeoutError 捕获兼容 Python <3.11 的 concurrent.futures.TimeoutError

Author: Astro-Han

quantclass_sync_internal/orchestrator.py

@@ -8,7 +8,7 @@
 import threading
 import traceback
 import time
-from concurrent.futures import ThreadPoolExecutor, as_completed
+from concurrent.futures import ThreadPoolExecutor, TimeoutError as FuturesTimeoutError, as_completed
 from datetime import date, datetime, timedelta
 from pathlib import Path
 from typing import Callable, Dict, Iterable, List, Optional, Sequence, Tuple
@@ -965,7 +965,7 @@ def _fetch_one(product: str) -> Tuple[str, Optional[str]]:
                 pass
             if abort_event.is_set():
                 break
-    except TimeoutError:
+    except (TimeoutError, FuturesTimeoutError):
         log_info("[预取] 超时，放弃剩余查询", event="PREFETCH", decision="timeout")
     finally:
         executor.shutdown(wait=False, cancel_futures=True)