2025-11-28 zwy 调整代码，支持机场3飞行器视频

zhaowenyu

2025-11-28 7994c9f7e038af30dcce50ea284e80ba644a5a06

 ard-work/src/main/java/com/ard/work/component/websocket/WebSocketSessionManager.java

@@ -28,4 +28,9 @@
    public static int getOnlineUserCount() {
        return ONLINE_USER_SESSIONS.size();
    }

    public static boolean containsUser(Long userId) {
        return ONLINE_USER_SESSIONS.containsKey(userId);
    }

}