feat: SEO cleanup, A11y, Next.js 16 dynamic routes, hide unverified content

app/sklep/[slug]/page.tsx

@@ -4,6 +4,7 @@ import { getProductBySlug, getProducts } from '@/content/products';
 import { companyDetails } from '@/content/company';
 import { ProductPageClient } from '@/components/shop/ProductPageClient';
 import { getProductVariants } from '@/content/product-variants';
+import { JsonLd } from '@/components/ui/JsonLd';
 
 interface Props {
   params: Promise<{ slug: string }>;
@@ -51,17 +52,13 @@ export default async function ProductPage({ params }: Props) {
       "url": `${baseUrl}/sklep/${product.slug}`,
       "priceCurrency": "PLN",
       "price": product.price,
-      "priceValidUntil": "2027-12-31",
-      "availability": "https://schema.org/InStock",
       "seller": { "@type": "Organization", "name": "ThermCool" },
     },
   } : null;
 
   return (
     <>
-      {productJsonLd && (
-        <script type="application/ld+json" dangerouslySetInnerHTML={{ __html: JSON.stringify(productJsonLd) }} />
-      )}
+      {productJsonLd && <JsonLd data={productJsonLd} />}
       <ProductPageClient
         product={product}
         seriesProducts={seriesProducts}