chore(website): add Google Analytics

website/.vitepress/config.mts

@@ -26,6 +26,8 @@ export default withMermaid(
       ['meta', { property: 'og:title', content: 'MemPalace — AI Memory System' }],
       ['meta', { property: 'og:description', content: '96.6% LongMemEval recall. Zero API calls. Local, free, open source.' }],
       ['meta', { property: 'og:image', content: `${docsBase}mempalace_logo.png` }],
+      ['script', { async: '', src: 'https://www.googletagmanager.com/gtag/js?id=G-PPQE4Z7P1K' }],
+      ['script', {}, `window.dataLayer = window.dataLayer || [];\nfunction gtag(){dataLayer.push(arguments);}\ngtag('js', new Date());\ngtag('config', 'G-PPQE4Z7P1K');`],
     ],
 
     themeConfig: {