- Add Drink.Category.sekt for consignment alcoholic drinks
- Order sekt under "mit Alkohol" section, after Radler
- Rainbow gradient CSS for .drink-btn-sekt
- Rebalance all drink button brightness to match rainbow midpoint
- Seed Sekty Drink (3.50€, no deposit, no purchase price)
- Update Sternburg Export 10.99→9.49, Altenburger Helles 15.99→13.99
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
