A stateless TileService that opens the create-event form on today — the same
action as the launcher 'New event' shortcut and the agenda widget's +. Reuses
MainActivity.openCreateIntent; wrapped in unlockAndRun and using the API 34+
startActivityAndCollapse(PendingIntent) form (deprecated Intent form below 34).
No new permission (BIND_QUICK_SETTINGS_TILE is system-side).
Discoverability: Settings → New event form gains an 'Add Quick Settings tile'
row that fires StatusBarManager.requestAddTileService (API 33+); on older
versions the tile is still addable manually from the system QS editor.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>