Are team members notified when a board is automatically and permanently deleted from the Trash?
No. Team members aren't notified when a board is automatically and permanently deleted from the Trash.
Can I recover a permanently deleted board from the Trash?
No. You cannot recover a permanently deleted board from the Trash.
Can I avoid a board from being automatically and permanently deleted?
This isn't possible in the Beta release.
Are there public APIs available to permanently delete boards from the Trash?
Public APIs aren't supported in the Beta release.