Merge pull request #1104 from CaixyPromise/feature/wait-exit-fix

fix(app): 修复app.py内的wait_for_exit()，以此解决Windows环境下手动退出时，进程阻塞卡死的问题。

main/xiaozhi-server/app.py

@@ -12,22 +12,26 @@ TAG = __name__
 logger = setup_logging()
 
 
-async def wait_for_exit():
-    """Windows 和 Linux 兼容的退出监听"""
+async def wait_for_exit() -> None:
+    """
+    阻塞直到收到 Ctrl‑C / SIGTERM。
+    - Unix: 使用 add_signal_handler
+    - Windows: 依赖 KeyboardInterrupt
+    """
     loop = asyncio.get_running_loop()
     stop_event = asyncio.Event()
 
-    if sys.platform == "win32":
-        # Windows: 用 sys.stdin.read() 监听 Ctrl + C
-        await loop.run_in_executor(None, sys.stdin.read)
-    else:
-        # Linux/macOS: 用 signal 监听 Ctrl + C
-        def stop():
-            stop_event.set()
-
-        loop.add_signal_handler(signal.SIGINT, stop)
-        loop.add_signal_handler(signal.SIGTERM, stop)  # 支持 kill 进程
+    if sys.platform != "win32":  # Unix / macOS
+        for sig in (signal.SIGINT, signal.SIGTERM):
+            loop.add_signal_handler(sig, stop_event.set)
         await stop_event.wait()
+    else:
+        # Windows：await一个永远pending的fut，
+        # 让 KeyboardInterrupt 冒泡到 asyncio.run，以此消除遗留普通线程导致进程退出阻塞的问题
+        try:
+            await asyncio.Future()
+        except KeyboardInterrupt:  # Ctrl‑C
+            pass
 
 
 async def main():