- Add FOR UPDATE to recovery path in try_fulfill_guest_purchase to prevent
TOCTOU race that could overwrite DELIVERED back to PAID
- Isolate monitoring phases with independent try/except so Phase 1 failure
does not block Phase 2/3
- Optimize recover_stuck_pending_purchases to select only token and
payment_method columns instead of full ORM objects
- Remove dead elif branch in stars_payments.py (try_fulfill_guest_purchase
no longer returns False)
- Add Phase 3 comment for consistency
Fringg
57c5c679ee