Added OG support

dist/modules/seo/buildMetadata.js

@@ -71,16 +71,32 @@ import { buildHreflangAlternates } from './hreflang.js';
             ...images && {
                 images
             },
-            locale
+            type: 'website',
+            locale,
+            ...siteName ? {
+                siteName
+            } : {},
+            ...canonical ? {
+                url: canonical
+            } : {}
         },
-        // noindex → tell search engines to exclude the page but still follow links
-        // (authority flows through). For legal/thin/search-result pages.
+        // robots: noindex pages are excluded (follow keeps link authority). Indexed
+        // pages get generous snippet/preview limits so Google can show rich results
+        // (long snippets, large image previews, full video previews).
         ...meta?.noindex ? {
             robots: {
                 follow: true,
                 index: false
             }
-        } : {}
+        } : {
+            robots: {
+                follow: true,
+                index: true,
+                'max-image-preview': 'large',
+                'max-snippet': -1,
+                'max-video-preview': -1
+            }
+        }
     };
 }