refactor: 使用假端口实现调度器单例控制

- 恢复 agentmain.py 到原始状态
- launch.pyw 使用端口 65432 检测单例
- 避免重复启动调度器实例

agentmain.py

@@ -110,33 +110,8 @@ class GeneraticAgent:
                 if self.handler is not None: self.handler.code_stop_signal.append(1)
 
     
-def acquire_singleton_lock():
-    """确保只有一个调度器实例运行"""
-    lock_file = './temp/scheduler.lock'
-    os.makedirs('./temp', exist_ok=True)
-    
-    if os.name == 'nt':  # Windows
-        import msvcrt
-        try:
-            lock_fd = open(lock_file, 'w')
-            msvcrt.locking(lock_fd.fileno(), msvcrt.LK_NBLCK, 1)
-            return lock_fd
-        except:
-            print('[Scheduler] Another instance is already running')
-            sys.exit(0)
-    else:  # Unix/Linux
-        import fcntl
-        try:
-            lock_fd = open(lock_file, 'w')
-            fcntl.flock(lock_fd.fileno(), fcntl.LOCK_EX | fcntl.LOCK_NB)
-            return lock_fd
-        except:
-            print('[Scheduler] Another instance is already running')
-            sys.exit(0)
-
 if __name__ == '__main__':
     from datetime import datetime
-    lock_fd = acquire_singleton_lock()  # 获取单例锁
     agent = GeneraticAgent()
     threading.Thread(target=agent.run, daemon=True).start()
     def drain(dq, tag):