How do you handle app lifecycle events (start, sleep, resume) in MAUI?

Handle Window lifecycle events—Created, Activated, Deactivated, Stopped, Resumed, Destroying—overridden on the Window or subscribed via App. Use Stopped/Deactivated to persist state and release resources, and Resumed to refresh data or reconnect. For platform specifics, use lifecycle events in ConfigureLifecycleEvents.

protected override Window CreateWindow(IActivationState? state)
{
    var window = base.CreateWindow(state);
    window.Stopped  += (s, e) => SaveState();
    window.Resumed  += (s, e) => RefreshData();
    return window;
}