PianoVision quit about a second after start on the Frame: Unity App UI's activity
(com.unity3d.player.appui.AppUIGameActivity) calls getSystemService("vibrator_manager") and casts to
android.os.VibratorManager in onCreate without a version check; Lepton runs Android 11, so
NoClassDefFoundError before Unity starts. The sequence now leaves its registers null (the field store and
the rest of onCreate stay) and the activity's methods that read the vibrator return at once (in-place dex
edit). Suggested by analysis unity_appui_vibrator (ANALYSIS_VERSION 20) and triage unity-appui-vibrator.
