- Add /sponsorships page with tier overview, embedded flipbook deck, and contact CTA
- Create HTML sponsorship slide deck (12 slides) and print-optimized version for PDF/flipbook
- Create sponsor outreach email template
- Update existing outreach templates to reflect new €1k-€5k tier range
- Add opt-in checkboxes for accommodation (dorm/double) and food package on registration payment step
- Pass accommodation and food selections as separate Stripe line items for single checkout
- Store add-on selections in Stripe session metadata
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
