f2c05deaed
Fixes the dead "Zur Kasse gehen" link on /cart. Built against the actual Figma frame (page-checkout, node 4761:465, jCCZyh1DGwdjpv1wGge9To): breadcrumb, 4-step progress stepper (Warenkorb done / Adresse active / Zahlung+Abschluss upcoming), Rechnungsadresse form, Versandart (real radio toggle — switching to Express actually updates the shown total), Zahlungsart (Kreditkarte/PayPal/Überweisung with the real exported payment-network logos), sidebar order summary reusing the same cart/products data as /cart, trust bullets, and a newsletter hint box (divider under the text, not the icon — deliberately different from /cart's own version per this page's own Figma spec). No real payment processing — "Jetzt kaufen" links to /bestellbestaetigung (not yet built) same as the rest of this prototype site's forms (cart, newsletter signup) don't hit a real backend either. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>