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/astro/dist/runtime/client/only.js

@@ -0,0 +1,8 @@
+const onlyDirective = async (load) => {
+  const hydrate = await load();
+  await hydrate();
+};
+var only_default = onlyDirective;
+export {
+  only_default as default
+};