Merge remote-tracking branch 'origin/dev' into dev

zhaowenyu

2026-04-01 b8b5a3895e741d5348ecdd39ad2e5cbd443f8e89

 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);
    }

}