- PaymentIntent instead of Checkout Session on connected account
- Stripe Elements Payment Element with neo-brutalist theme
- stripe-payment.js module with waitForStripe() for deferred loading
- No inline scripts (CSP compliant), data attributes on container
- Add order_number (YYYY-MM-DD-increment) to BilletBuyer
- Payment page redesign: full-width vertical layout with event info,
buyer info, billet listing with images/descriptions, payment form
- CSP: add js.stripe.com to script-src, api.stripe.com to connect-src
- Add stripe_pk parameter in services.yaml
- Add head block to base.html.twig for page-specific scripts
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>