feat: Upgrade to Astro with full PDPA compliance

PDPA Features:
✅ Cookie consent banner
✅ Consent logging API
✅ Admin dashboard
✅ Privacy Policy
✅ Terms & Conditions

Technical:
✅ Astro 5.x + Tailwind v4
✅ Docker on port 80
✅ SQLite database
✅ 15 pages built

Ready for Easypanel deployment.

node_modules/ohash/dist/crypto/node/index.d.mts

@@ -0,0 +1,10 @@
+/**
+ * Hashes a string using the SHA-256 algorithm and encodes it in Base64URL format.
+ *
+ * @param {string} data - data message to hash.
+ *
+ * @returns {string} The hash of the data.
+ */
+declare function digest(data: string): string;
+
+export { digest };