Added OG support

dist/modules/seo/buildMetadata.d.ts

@@ -17,12 +17,27 @@ export type PageMetadata = {
             url: string;
         }[];
         locale?: string;
+        /** Site/brand name for the OG card. */
+        siteName?: string;
         title: string;
+        /** 'website' | 'article' etc. Defaults to 'website'. */
+        type?: string;
+        /** Canonical URL of this page. */
+        url?: string;
     };
-    /** robots directives — set to noindex/follow for legal/thin/search pages. */
+    /**
+     * robots directives. Indexed pages get generous snippet/preview limits by
+     * default (Google shows richer results); noindex pages get index:false.
+     */
     robots?: {
         follow: boolean;
         index: boolean;
+        /** 'none' | 'standard' | 'large' — image preview size in results. */
+        'max-image-preview'?: 'large' | 'none' | 'standard';
+        /** Max text snippet length; -1 = no limit. Next maps to max-snippet. */
+        'max-snippet'?: number;
+        /** Max video preview seconds; -1 = no limit. */
+        'max-video-preview'?: number;
     };
     title: string;
 };

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
+            }
+        }
     };
 }