fix(routing): resolve 404 on German product pages via rewrites and localized links

components/RelatedProducts.tsx

@@ -2,6 +2,7 @@ import { getAllProducts } from '@/lib/mdx';
 import { getTranslations } from 'next-intl/server';
 import Image from 'next/image';
 import { RelatedProductLink } from './RelatedProductLink';
+import { mapFileSlugToTranslated } from '@/lib/slugs';
 
 interface RelatedProductsProps {
   currentSlug: string;
@@ -16,6 +17,7 @@ export default async function RelatedProducts({
 }: RelatedProductsProps) {
   const products = await getAllProducts(locale);
   const t = await getTranslations('Products');
+  const productsSlug = await mapFileSlugToTranslated('products', locale);
 
   // Filter products: same category, not current product
   const related = products
@@ -61,7 +63,7 @@ export default async function RelatedProducts({
           return (
             <RelatedProductLink
               key={product.slug}
-              href={`/${locale}/products/${catSlug}/${product.slug}`}
+              href={`/${locale}/${productsSlug}/${catSlug}/${product.slug}`}
               productSlug={product.slug}
               productTitle={product.frontmatter.title}
               className="group block bg-white rounded-[32px] overflow-hidden shadow-sm hover:shadow-2xl transition-all duration-500 border border-neutral-dark/5"