Asc Testflight Orchestration

This handles TestFlight distribution through the asc command line tool instead of clicking through App Store Connect. You can export your current TestFlight setup to YAML, manage tester groups, distribute builds to specific groups, and update What to Test notes. The commands are straightforward: list testers, add them to groups, attach builds to those groups. The real win is being able to script your beta rollout process instead of doing it manually in the web UI every time. Just remember to use the paginate flag when you've got a lot of testers, and stick to IDs rather than names when you need operations to be deterministic.