Add seo tags

src/pages/premium.astro

@@ -6,6 +6,7 @@ import { PremiumPage } from '../components/Premium/PremiumPage';
 <BaseLayout 
   title='Premium Features - AI-Powered Learning | roadmap.sh'
   description='Unlock unlimited AI-powered learning with roadmap.sh Premium. Generate unlimited courses, get career guidance, instant AI answers, and access exclusive features for just $10/month.'
+  ogImageUrl='https://assets.roadmap.sh/guest/ai-tutor-og-6hm9j.png'
   keywords={[
     'roadmap.sh premium',
     'ai learning platform',
@@ -41,18 +42,19 @@ import { PremiumPage } from '../components/Premium/PremiumPage';
           priceValidUntil: '2025-12-31',
           availability: 'https://schema.org/InStock',
           url: 'https://roadmap.sh/premium',
-          seller: {
-            '@type': 'Organization',
-            name: 'roadmap.sh'
+          hasMerchantReturnPolicy: {
+            '@type': 'MerchantReturnPolicy',
+            applicableCountry: 'US',
+            returnPolicyCategory: 'https://schema.org/MerchantReturnNotPermitted'
           },
-          priceSpecification: {
-            '@type': 'PriceSpecification',
-            price: '10.00',
-            priceCurrency: 'USD'
-          },
-          eligibleRegion: {
-            '@type': 'Place',
-            name: 'Worldwide'
+          shippingDetails: {
+            '@type': 'OfferShippingDetails',
+            shippingRate: {
+              '@type': 'MonetaryAmount',
+              value: 0,
+              currency: 'USD'
+            },
+            doesNotShip: true
           }
         },
         {
@@ -63,18 +65,19 @@ import { PremiumPage } from '../components/Premium/PremiumPage';
           priceValidUntil: '2025-12-31',
           availability: 'https://schema.org/InStock',
           url: 'https://roadmap.sh/premium',
-          seller: {
-            '@type': 'Organization',
-            name: 'roadmap.sh'
+          hasMerchantReturnPolicy: {
+            '@type': 'MerchantReturnPolicy',
+            applicableCountry: 'US',
+            returnPolicyCategory: 'https://schema.org/MerchantReturnNotPermitted'
           },
-          priceSpecification: {
-            '@type': 'PriceSpecification',
-            price: '100.00',
-            priceCurrency: 'USD'
-          },
-          eligibleRegion: {
-            '@type': 'Place',
-            name: 'Worldwide'
+          shippingDetails: {
+            '@type': 'OfferShippingDetails',
+            shippingRate: {
+              '@type': 'MonetaryAmount',
+              value: 0,
+              currency: 'USD'
+            },
+            doesNotShip: true
           }
         }
       ],