fix: reduce polling and access log noise

main.py

@@ -1,6 +1,7 @@
 #!/usr/bin/env python3
 """TG 群管机器人 v2 — FastAPI + Tortoise ORM + python-telegram-bot"""
 import os
+import time
 import asyncio
 import logging
 from contextlib import asynccontextmanager
@@ -35,6 +36,18 @@ logging.getLogger("httpcore").setLevel(logging.WARNING)
 # ============ Telegram Bot ============
 
 tg_app: Application = None
+_last_polling_error_log = 0.0
+
+
+def polling_error_callback(exc):
+    """压缩 Telegram polling 网络异常日志，避免代理偶发断连刷 traceback。"""
+    global _last_polling_error_log
+    now = time.time()
+    # polling 会自动重试；同类网络波动 60 秒内只提示一次。
+    if now - _last_polling_error_log < 60:
+        return
+    _last_polling_error_log = now
+    logger.warning(f"⚠️ TG polling 网络波动，已自动重试: {type(exc).__name__}: {exc}")
 
 
 async def start_tg_bot():
@@ -54,7 +67,7 @@ async def start_tg_bot():
 
     await tg_app.initialize()
     await tg_app.start()
-    await tg_app.updater.start_polling(drop_pending_updates=False)
+    await tg_app.updater.start_polling(drop_pending_updates=False, error_callback=polling_error_callback)
 
     # 菜单
     commands = [
@@ -121,7 +134,7 @@ web_app.router.lifespan_context = lifespan
 
 
 def run():
-    uvicorn.run(web_app, host="0.0.0.0", port=config.WEB_PORT, log_level="info")
+    uvicorn.run(web_app, host="0.0.0.0", port=config.WEB_PORT, log_level="info", access_log=False)
 
 
 if __name__ == "__main__":