fix(ci): restore full localized sitemap coverage and strict 404 validation

app/sitemap.ts

@@ -3,6 +3,7 @@ import { MetadataRoute } from 'next';
 import { getAllProductsMetadata } from '@/lib/mdx';
 import { getAllPostsMetadata } from '@/lib/blog';
 import { getAllPagesMetadata } from '@/lib/pages';
+import { mapFileSlugToTranslated } from '@/lib/slugs';
 
 export const revalidate = 3600; // Revalidate every hour
 
@@ -12,28 +13,45 @@ export default async function sitemap(): Promise<MetadataRoute.Sitemap> {
     : config.baseUrl || 'https://klz-cables.com';
   const locales = ['de', 'en'];
 
-  const routes = [
-    '',
-    '/blog',
-    '/contact',
-    '/team',
-    '/products',
-    '/products/low-voltage-cables',
-    '/products/medium-voltage-cables',
-    '/products/high-voltage-cables',
-    '/products/solar-cables',
-  ];
-
   const sitemapEntries: MetadataRoute.Sitemap = [];
 
   for (const locale of locales) {
+    // Helper to generate localized URL Segment
+    const getLocalizedRoute = async (pageKey: string) => {
+      if (pageKey === '') return '';
+      const translated = await mapFileSlugToTranslated(pageKey, locale);
+      return `/${translated}`;
+    };
+
     // Static routes
-    for (const route of routes) {
+    const staticPages = ['', 'blog', 'contact', 'team', 'products'];
+    for (const page of staticPages) {
+      const localizedRoute = await getLocalizedRoute(page);
       sitemapEntries.push({
-        url: `${baseUrl}/${locale}${route}`,
+        url: `${baseUrl}/${locale}${localizedRoute}`,
         lastModified: new Date(),
-        changeFrequency: route === '' ? 'daily' : 'weekly',
-        priority: route === '' ? 1 : 0.8,
+        changeFrequency: page === '' ? 'daily' : 'weekly',
+        priority: page === '' ? 1 : 0.8,
+      });
+    }
+
+    // Categories routes
+    const productCategories = [
+      'low-voltage-cables',
+      'medium-voltage-cables',
+      'high-voltage-cables',
+      'solar-cables',
+    ];
+
+    const translatedProducts = await mapFileSlugToTranslated('products', locale);
+
+    for (const category of productCategories) {
+      const translatedCategory = await mapFileSlugToTranslated(category, locale);
+      sitemapEntries.push({
+        url: `${baseUrl}/${locale}/${translatedProducts}/${translatedCategory}`,
+        lastModified: new Date(),
+        changeFrequency: 'weekly',
+        priority: 0.8,
       });
     }
 
@@ -44,8 +62,11 @@ export default async function sitemap(): Promise<MetadataRoute.Sitemap> {
 
       const category =
         product.frontmatter.categories[0]?.toLowerCase().replace(/\s+/g, '-') || 'other';
+      const translatedCategory = await mapFileSlugToTranslated(category, locale);
+      const translatedSlug = await mapFileSlugToTranslated(product.slug, locale);
+
       sitemapEntries.push({
-        url: `${baseUrl}/${locale}/products/${category}/${product.slug}`,
+        url: `${baseUrl}/${locale}/${translatedProducts}/${translatedCategory}/${translatedSlug}`,
         lastModified: new Date(),
         changeFrequency: 'monthly',
         priority: 0.7,
@@ -53,12 +74,15 @@ export default async function sitemap(): Promise<MetadataRoute.Sitemap> {
     }
 
     // Blog posts
+    const translatedBlog = await mapFileSlugToTranslated('blog', locale);
     const postsMetadata = await getAllPostsMetadata(locale);
     for (const post of postsMetadata) {
       if (!post.frontmatter || !post.slug) continue;
 
+      const translatedSlug = await mapFileSlugToTranslated(post.slug, locale);
+
       sitemapEntries.push({
-        url: `${baseUrl}/${locale}/blog/${post.slug}`,
+        url: `${baseUrl}/${locale}/${translatedBlog}/${translatedSlug}`,
         lastModified: new Date(post.frontmatter.date),
         changeFrequency: 'monthly',
         priority: 0.6,
@@ -70,8 +94,10 @@ export default async function sitemap(): Promise<MetadataRoute.Sitemap> {
     for (const page of pagesMetadata) {
       if (!page.slug) continue;
 
+      const translatedSlug = await mapFileSlugToTranslated(page.slug, locale);
+
       sitemapEntries.push({
-        url: `${baseUrl}/${locale}/${page.slug}`,
+        url: `${baseUrl}/${locale}/${translatedSlug}`,
         lastModified: new Date(),
         changeFrequency: 'monthly',
         priority: 0.5,