- Background scheduler checks every 30s for bookings that need setup or teardown
- Per-lab Semaphore template IDs stored on the labs table
- Booking flags track which jobs have been triggered and their Semaphore job IDs
- Immediate teardown triggered when an active booking is cancelled
- Settings UI section for Semaphore API URL, token, and project ID
- Lab template form fields for setup/teardown template IDs
- BookingDetailsModal shows live Ansible job status with manual trigger buttons
