feat: add daily product intelligence and versioned site assets (#64)

Adds privacy-safe aggregate product intelligence, reviewed/versioned website assets, and a dispatch-only rollout until the dedicated Sentry token is verified. Independent review blockers were fixed in 8bc47e4; app checks, website production build, Android CI, and iOS CI are green.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

website/components/Footer.tsx

@@ -0,0 +1,42 @@
+import Link from 'next/link'
+
+export default function Footer() {
+  return (
+    <footer className="border-t mt-20" style={{ borderColor: 'var(--border)' }}>
+      <div className="max-w-5xl mx-auto px-4 sm:px-6 py-10">
+        <div className="flex flex-col sm:flex-row items-start sm:items-center justify-between gap-6">
+          {/* Links */}
+          <div className="flex flex-wrap items-center gap-x-6 gap-y-2 text-sm" style={{ color: 'var(--muted)' }}>
+            <a
+              href="https://github.com/dzianisv/opencode-mobile"
+              target="_blank"
+              rel="noopener noreferrer"
+              className="hover:opacity-80 transition-colors"
+            >
+              GitHub
+            </a>
+            <a
+              href="https://opencode.ai"
+              target="_blank"
+              rel="noopener noreferrer"
+              className="hover:opacity-80 transition-colors"
+            >
+              Docs
+            </a>
+            <Link href="/privacy" className="hover:opacity-80 transition-colors">
+              Privacy
+            </Link>
+            <Link href="/terms" className="hover:opacity-80 transition-colors">
+              Terms
+            </Link>
+          </div>
+
+          {/* Legal */}
+          <p className="text-xs" style={{ color: 'var(--muted)' }}>
+            &copy; 2026 VIBE TECHNOLOGIES, LLC
+          </p>
+        </div>
+      </div>
+    </footer>
+  )
+}