add multilanguage support

privacy.html

@@ -5,7 +5,25 @@
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <title>Privacy Policy — adiuvAI</title>
   <meta name="description" content="adiuvAI Privacy Policy. Learn how we protect your data with a local-first, privacy-by-design architecture.">
+  <link rel="canonical" href="https://adiuvai.com/privacy.html">
+  <meta name="theme-color" content="#f4edf3">
+
+  <!-- Open Graph -->
+  <meta property="og:title" content="Privacy Policy — adiuvAI">
+  <meta property="og:description" content="adiuvAI Privacy Policy. Learn how we protect your data with a local-first, privacy-by-design architecture.">
+  <meta property="og:type" content="website">
+  <meta property="og:url" content="https://adiuvai.com/privacy.html">
+  <meta property="og:image" content="https://adiuvai.com/assets/og-image.png">
+  <meta property="og:site_name" content="adiuvAI">
+
+  <!-- Twitter Card -->
+  <meta name="twitter:card" content="summary_large_image">
+  <meta name="twitter:title" content="Privacy Policy — adiuvAI">
+  <meta name="twitter:description" content="adiuvAI Privacy Policy. Learn how we protect your data with a local-first, privacy-by-design architecture.">
+  <meta name="twitter:image" content="https://adiuvai.com/assets/og-image.png">
+
   <link rel="icon" type="image/svg+xml" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M8,1 L13,8 L3,8 Z' fill='%23fbc881'/%3E%3Cpath d='M3,8 L13,8 L8,15 Z' fill='%23040404'/%3E%3C/svg%3E">
+  <link rel="apple-touch-icon" href="assets/apple-touch-icon.png">
   <link rel="preconnect" href="https://fonts.googleapis.com">
   <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
   <link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap" rel="stylesheet">