* fix(bookings): refund all seat payments when cancelling a paid seated booking
A paid seated booking creates one Payment row per seat on the same bookingId (each seat's payment_intent.succeeded webhook flips only its own payment via handlePaymentSuccess). processPaymentRefund only refunded payment.find((p) => p.success) — the first successful payment — so fully cancelling a multi-seat paid booking with an auto-refund policy refunded a single seat and left the other attendees charged with no error surfaced.
Refund every successful, not-yet-refunded payment instead.
Tests: unit regression in processPaymentRefund.test.ts (all payments refunded, verified red before the fix); integration test in handleCancelBooking.test.ts proving a full cancel of a seated multi-payment booking hands all payments to the refund path.
* fix(bookings): make seat refunds resilient and drop dayjs in test
Address CodeRabbit review on #29685:
- processPaymentRefund now attempts every seat's refund independently and throws an aggregate error, so one provider failure no longer skips the remaining seats.
- Add a regression test for that resilience, and use native Date instead of dayjs for fixed-offset test timestamps.
shafi-VM
761b780aa2