feat: Complete checkout overhaul with Stripe PaymentIntent integration and abandoned cart recovery

resources/js/pages/auth/RegisterForm.tsx

@@ -23,6 +23,7 @@ interface RegisterFormProps {
 export default function RegisterForm({ packageId, onSuccess, privacyHtml, locale }: RegisterFormProps) {
   const [privacyOpen, setPrivacyOpen] = useState(false);
   const [hasTriedSubmit, setHasTriedSubmit] = useState(false);
+  const [isSubmitting, setIsSubmitting] = useState(false);
   const { t } = useTranslation(['auth', 'common']);
   const page = usePage<{ errors: Record<string, string>; locale?: string; auth?: { user?: any | null } }>();
   const resolvedLocale = locale ?? page.props.locale ?? 'de';
@@ -46,18 +47,8 @@ export default function RegisterForm({ packageId, onSuccess, privacyHtml, locale
     }
   }, [errors, hasTriedSubmit]);
 
-  const registerEndpoint = useMemo(() => {
-    if (typeof route === 'function') {
-      try {
-        return route('checkout.register');
-      } catch (error) {
-        // ignore ziggy errors and fall back
-      }
-    }
-
-    return `/${resolvedLocale}/register`;
-  }, [resolvedLocale]);
-
+  const registerEndpoint = '/checkout/register';
+      
   const submit = async (event: React.FormEvent) => {
     event.preventDefault();
     setHasTriedSubmit(true);
@@ -71,6 +62,7 @@ export default function RegisterForm({ packageId, onSuccess, privacyHtml, locale
     };
 
     try {
+      
       const response = await fetch(registerEndpoint, {
         method: 'POST',
         headers: {