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.mjs

@@ -0,0 +1,5 @@
+import { createHash } from 'node:crypto';
+
+const e=globalThis.process?.getBuiltinModule?.("crypto")?.hash,r="sha256",s="base64url";function digest(t){if(e)return e(r,t,s);const o=createHash(r).update(t);return globalThis.process?.versions?.webcontainer?o.digest().toString(s):o.digest(s)}
+
+export { digest };