Merge branch 'dev' of https://github.com/MaiM-with-u/MaiBot into dev

bot.py

@@ -122,10 +122,7 @@ async def graceful_shutdown():
 
             # 等待所有任务完成，设置超时
             try:
-                await asyncio.wait_for(
-                    asyncio.gather(*remaining_tasks, return_exceptions=True),
-                    timeout=15.0
-                )
+                await asyncio.wait_for(asyncio.gather(*remaining_tasks, return_exceptions=True), timeout=15.0)
                 logger.info("所有剩余任务已成功取消")
             except asyncio.TimeoutError:
                 logger.warning("等待任务取消超时，强制继续关闭")