feat(i18n): enhance data fetching and caching with language support

- Update data-fetching functions to include language and translation request parameters for improved internationalization.
- Modify caching logic in Content and GrowTentKonfigurator components to utilize language-aware cache keys.
- Ensure ProductDetailPage retrieves cached data based on the current language, enhancing user experience across different locales.
- Integrate language handling in various components to maintain consistency in data management and rendering.

prerender/data-fetching.cjs

@@ -37,9 +37,15 @@ const fetchCategoryProducts = (socket, categoryId) => {
       reject(new Error(`Timeout fetching products for category ${categoryId}`));
     }, 5000);
 
+    // Prerender system fetches German version by default
     socket.emit(
       "getCategoryProducts",
-      { full:true, categoryId: categoryId === "neu" ? "neu" : parseInt(categoryId) },
+      {
+        full: true,
+        categoryId: categoryId === "neu" ? "neu" : parseInt(categoryId),
+        language: 'de',
+        requestTranslation: false
+      },
       (response) => {
         clearTimeout(timeout);
         if (response && response.products !== undefined) {
@@ -68,7 +74,13 @@ const fetchProductDetails = (socket, productSeoName) => {
       );
     }, 5000);
 
-    socket.emit("getProductView", { seoName: productSeoName, nocount: true }, (response) => {
+    // Prerender system fetches German version by default
+    socket.emit("getProductView", {
+      seoName: productSeoName,
+      nocount: true,
+      language: 'de',
+      requestTranslation: false
+    }, (response) => {
       clearTimeout(timeout);
       if (response && response.product) {
         response.product.seoName = productSeoName;

prerender/renderer.cjs

@@ -193,14 +193,17 @@ const renderPage = (
   let productDetailCacheScript = '';
   if (productData && productData.product) {
     // Cache the entire response object (includes product, attributes, etc.)
+    // Use language-aware cache key (prerender defaults to German)
     const productDetailCacheData = JSON.stringify(productData);
+    const language = 'de'; // Prerender system caches German version
+    const cacheKey = `product_${productData.product.seoName}_${language}`;
     productDetailCacheScript = `
     <script>
       // Populate window.productDetailCache with complete product data for SPA hydration
       if (!window.productDetailCache) {
         window.productDetailCache = {};
       }
-      window.productDetailCache['${productData.product.seoName}'] = ${productDetailCacheData};
+      window.productDetailCache['${cacheKey}'] = ${productDetailCacheData};
     </script>
     `;
   }