fix: thread-safe logging with QueueHandler + QueueListener

- Replace logging.basicConfig with QueueHandler/QueueListener
  so all log output writes from a single thread
- Add %(threadName)s to format for thread identification

main.py

@@ -1,5 +1,6 @@
 import logging
-import queue
+import logging.handlers
+import queue as queue_module
 import signal
 import sys
 import threading
@@ -8,11 +9,21 @@ from src.config import load_config
 from src.summarizer import poll_accounts, ai_process, tg_send_and_mark
 from src.tg_bot import poll_telegram
 
-logging.basicConfig(
-    level=logging.INFO,
-    format="%(asctime)s [%(levelname)s] %(name)s: %(message)s",
+# Thread-safe logging: all log records go through a single QueueListener thread
+_log_queue = queue_module.Queue(-1)
+_queue_handler = logging.handlers.QueueHandler(_log_queue)
+_console_handler = logging.StreamHandler()
+_console_handler.setFormatter(logging.Formatter(
+    "%(asctime)s [%(levelname)s] [%(threadName)s] %(name)s: %(message)s",
     datefmt="%Y-%m-%d %H:%M:%S",
-)
+))
+_log_listener = logging.handlers.QueueListener(_log_queue, _console_handler)
+
+root = logging.getLogger()
+root.addHandler(_queue_handler)
+root.setLevel(logging.INFO)
+_log_listener.start()
+
 logger = logging.getLogger("main")
 
 _running = True
@@ -20,9 +31,9 @@ _pending_lock = threading.Lock()
 _pending_uids: set[bytes] = set()
 
 # Queue 1: raw emails → AI processor
-_email_queue: queue.Queue = queue.Queue()
-# Queue 2: AI results → TG sender
-_tg_queue: queue.Queue = queue.Queue()
+_email_queue: queue_module.Queue = queue_module.Queue()
+# Queue 2: AI summaries → TG sender
+_tg_queue: queue_module.Queue = queue_module.Queue()
 
 
 def _signal_handler(signum, frame):
@@ -53,7 +64,7 @@ def _ai_processor(cfg):
     while _running:
         try:
             acct_idx, mail = _email_queue.get(timeout=1)
-        except queue.Empty:
+        except queue_module.Empty:
             continue
         try:
             info = ai_process(cfg, acct_idx, mail)
@@ -78,7 +89,7 @@ def _tg_worker(cfg):
         try:
             info = _tg_queue.get_nowait()
             tg_send_and_mark(cfg, info)
-        except queue.Empty:
+        except queue_module.Empty:
             pass
         except Exception as e:
             logger.error(f"TG 发送失败: {e}", exc_info=True)
@@ -113,6 +124,7 @@ def main():
 
     for t in threads:
         t.join(timeout=5)
+    _log_listener.stop()
     logger.info("机器人已停止")