Shows "Noch X € bis zum kostenlosen Versand" with a progress bar while
below the threshold; briefly confirms "freigeschaltet ✓" on crossing it,
then auto-hides. Re-appears if the subtotal drops back below the
threshold (e.g. after removing an item).
- New /shop overview, /cart (real cart state via useSyncExternalStore),
/versand (shipping policy page with TOC) and /newsletter detail page
- Cart: quantity/removal, order summary, related-products cross-sell
with randomized picks, VersandModal quick-reference instead of
navigating away, MwSt. disclosure next to unit prices
- Add-to-cart UX: inline success feedback (green state) plus a
fly-to-navbar-cart-icon animation (CartFlyProvider) with a delayed
badge count-up; AddToCartButton no longer navigates straight to /cart
- Shared lib/products.ts catalog and lib/shipping.ts constants (cost,
free-shipping threshold, handling/transit days) so cart, trust badges
and the versand page can never drift apart
- Fix Navbar smooth-scroll easing (ease-out instead of ease-in-out, no
more perceived start delay); compress newsletter modal photo
2.4MB -> 85KB to fix first-open jank
Marco