b895663c3a
Adds the customer-facing /book/<slug> page: service/slot picker, booking form, and confirmation screen, built on #16's existing booking JSON API. Includes iframe auto-fit height reporting (mirroring deploy/booking/booking_layout.js's eaBookingHeight message), brand-color theming via a ?color= query param, a honeypot field with a fake-success response indistinguishable from a real booking, and a clear "just taken" message on slot-conflict. Caddy per-IP rate limiting is documented in deploy/booking/RATE_LIMIT.md for manual application (no Caddyfile is tracked in this repo). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>