refactor: Update organization JSON-LD structure to include specific subtype (GardenStore) for better merchant categorization

prerender/seo/homepage.cjs

@@ -67,10 +67,10 @@ const generateHomepageJsonLd = (baseUrl, config, categories = []) => {
     ],
   };
 
-  // Organization/LocalBusiness Schema for rich results
+  // Store entity: specific subtype (GardenStore) + LocalBusiness + Organization for clear merchant categorization
   const organizationJsonLd = {
     "@context": "https://schema.org",
-    "@type": "LocalBusiness",
+    "@type": ["GardenStore", "LocalBusiness", "Organization"],
     "name": config.brandName,
     "alternateName": config.siteName,
     "description": config.descriptions.de.long,