feat: add Open Graph and Twitter Card meta tags

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: intech

.vitepress/config/shared.ts

@@ -6,6 +6,14 @@ export const sharedConfig = defineConfig({
     description: 'Production-ready gRPC/ConnectRPC framework for Node.js',
     head: [
         ['link', { rel: 'icon', type: 'image/png', href: '/assets/splash.png' }],
+        ['meta', { property: 'og:type', content: 'website' }],
+        ['meta', { property: 'og:title', content: 'Connectum' }],
+        ['meta', { property: 'og:description', content: 'Production-ready gRPC/ConnectRPC framework for Node.js' }],
+        ['meta', { property: 'og:image', content: 'https://connectum.dev/assets/splash.png' }],
+        ['meta', { property: 'og:url', content: 'https://connectum.dev' }],
+        ['meta', { property: 'og:site_name', content: 'Connectum' }],
+        ['meta', { name: 'twitter:card', content: 'summary_large_image' }],
+        ['meta', { name: 'twitter:image', content: 'https://connectum.dev/assets/splash.png' }],
     ],
     themeConfig: {
         logo: '/assets/name.png',