Add Meshkee sitemap config, technical-info labels, and footer credit.

Wire specs to /technical-info for field labels, match Safeteb footer credit, and publish build-time /meshkee/sitemap-config.json for SEO sync.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/app/user-products/[slug]/page.tsx

@@ -7,11 +7,11 @@ import { ProductTabs } from "@/components/ProductTabs";
 import { Products } from "@/components/Products";
 import { SiteShell } from "@/components/SiteShell";
 import { site } from "@/data/home";
-import { getCategoryVariationFieldMap } from "@/lib/api/product-fields";
 import {
   formatCondition,
   formatPrice,
   getUserProductBySlugOrNull,
+  getUserProductTechnicalInfo,
   listUserProducts,
   productCategory,
   productTitle,
@@ -29,9 +29,17 @@ export async function generateMetadata({
   const product = await getUserProductBySlugOrNull(slug);
   if (!product) return { title: "محصول یافت نشد" };
   const title = productTitle(product);
+  const description =
+    product.descriptionFa || product.description || product.descriptionEn || title;
+  const image = product.imageUrl || product.images?.[0]?.url || undefined;
   return {
     title,
-    description: product.descriptionFa || product.description || title,
+    description,
+    openGraph: {
+      title,
+      description,
+      ...(image ? { images: [{ url: image, alt: title }] } : {}),
+    },
   };
 }
 
@@ -50,16 +58,15 @@ export default async function UserProductDetailPage({ params }: PageProps) {
   const description =
     product.descriptionFa || product.description || product.descriptionEn;
   const deliveryNotes = product.deliveryNotes ?? product.deliveryNote ?? null;
-  const technicalFieldLabels = await getCategoryVariationFieldMap(
-    product.categoryId,
-  );
-
-  const similarResult = product.categoryId
-    ? await listUserProducts({
-        categoryId: product.categoryId,
-        pageSize: 5,
-      })
-    : { items: [], total: 0 };
+  const [technicalInfo, similarResult] = await Promise.all([
+    getUserProductTechnicalInfo(slug),
+    product.categoryId
+      ? listUserProducts({
+          categoryId: product.categoryId,
+          pageSize: 5,
+        })
+      : Promise.resolve({ items: [], total: 0 }),
+  ]);
 
   const similarProducts = similarResult.items
     .filter((item) => item.id !== product.id)
@@ -149,7 +156,7 @@ export default async function UserProductDetailPage({ params }: PageProps) {
             technicalNotes={product.technicalNotes}
             deliveryNotes={deliveryNotes}
             technicalValues={product.technicalValues}
-            technicalFieldLabels={technicalFieldLabels}
+            technicalInfo={technicalInfo}
           />
 
           {similarProducts.length > 0 ? (