Anny Admin API + Setster Integration

Keep Anny Admin API and Setster aligned: when scheduling events happen in one, update the other automatically.

Example: when Anny Admin API's "Watch Bookings" fires, WEXTL can "Assign Employee Services" in Setster. Anny Admin API has 17 triggers (including Watch Bookings, Watch Broadcast Campaigns, and Watch Businesses); Setster has 82 actions (including Assign Employee Services, Bulk Save Custom Fields, and Check Email Availability).