- Add POST /admin/commandes/{id}/forcer-validation to force validate pending
orders (generates tickets, sends emails, notifies organizer)
- Add "Forcer validation" button in orders template for pending orders
- Fix retrievePaymentIntent to query on organizer's Connect account
- Update stripe:sync to pass organizer stripeAccountId when checking payments
- Add 3 tests for force validation (pending, non-pending, not found)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>