refactor: use psutil uptime and wmi lib for Windows temps; graceful SIGINT/SIGTERM/SIGBREAK shutdown

bot.py

@@ -2,6 +2,7 @@
 import asyncio
 import logging
 import re
+import signal
 import sys
 from pathlib import Path
 
@@ -260,15 +261,36 @@ class Bot:
         watcher = asyncio.get_running_loop().create_task(self._watch_config(alerter))
         log.info("机器人就绪，等待 OneBot 实现端连接...")
         try:
-            await asyncio.Event().wait()
-        except (KeyboardInterrupt, asyncio.CancelledError):
-            pass
+            await self._wait_for_stop()
         finally:
+            log.info("正在关闭...")
             watcher.cancel()
             await updater.stop()
             await reporter.stop()
             await alerter.stop()
             await self.ob.stop()
+            log.info("已退出")
+
+    async def _wait_for_stop(self):
+        """阻塞直到收到 Ctrl-C / SIGTERM。"""
+        stop = asyncio.Event()
+        loop = asyncio.get_running_loop()
+
+        def request_stop():
+            loop.call_soon_threadsafe(stop.set)
+
+        sigs = [signal.SIGINT, signal.SIGTERM]
+        if sys.platform == "win32" and hasattr(signal, "SIGBREAK"):
+            sigs.append(signal.SIGBREAK)  # CTRL_BREAK / 任务管理器停止服务
+        for sig in sigs:
+            try:
+                loop.add_signal_handler(sig, request_stop)
+            except NotImplementedError:  # Windows 回退
+                signal.signal(sig, lambda s, f: request_stop())
+        try:
+            await stop.wait()
+        except KeyboardInterrupt:  # Windows 上 Ctrl-C 可能直接中断 await
+            pass
 
     async def _watch_config(self, alerter: Alerter, interval: float = 5.0):
         """监测 config.toml 修改并热重载（端口/token 等需重启的项不生效）。"""
@@ -294,7 +316,11 @@ def main():
     if sys.platform == "win32":
         asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())
     cfg = load_config()
-    asyncio.run(Bot(cfg).run())
+    try:
+        asyncio.run(Bot(cfg).run())
+    except KeyboardInterrupt:
+        print("已退出")
+        sys.exit(0)
 
 
 if __name__ == "__main__":