Replace simple accommodation dropdown with full venue/room-type selector
(Commons Hub + Herrnhof Villa) matching CCG registration flow. Accommodation
is now paid upfront with registration via Mollie instead of invoiced separately.
- Add 7 accommodation types with per-week pricing (€279-665/wk)
- Add 2% payment processing fee on registration + accommodation subtotal
- Create booking-sheet.js for automatic bed assignment on payment confirmation
- Update Mollie webhook to assign beds and send internal booking notifications
- Add accommodation_type column to DB schema + migration
- Update confirmation/admin emails with full price breakdown
- Add food interest checkbox with co-producing meals messaging
- Track accommodation type, venue, and food interest in Google Sheets
- Add startup migration for accommodation_type column in server.js
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
