**What's new?** **Study Configuration** - Added an app type setting that controls which sensors an app is allowed to collect. - Admin panel: the survey and user sensor views can now be filtered by app type. **Bug Fixes** - Check-in screen or survey should pop-up on notification selection without any app freezes. - Fixed a blank page that could appear on a fresh app launch. - Fixed a frozen or stale screen when returning to the app after it had been in the background. The app now notices when a screen fails to redraw on resume and refreshes itself. - Restored build scripts that had been removed by mistake in an earlier change. **Under the Hood** - Background sensor uploads now refresh their access token up front, reducing extra round trips and retries. - Rebuilt the end-to-end test harness and bumped it to version 1.5. - Added a notification burst test mode plus extra scripts and shortcuts to verify notification logic quickly.

Added a comprehensive end-to-end test suite covering sign up, login, check-in completion, logout, and browsing in a single run, providing broad coverage of core app functionality.