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/media.prebuilt.js

@@ -0,0 +1,4 @@
+var media_prebuilt_default = `(()=>{var n=(a,t)=>{let i=async()=>{await(await a())()};if(t.value){let e=matchMedia(t.value);e.matches?i():e.addEventListener("change",i,{once:!0})}};(self.Astro||(self.Astro={})).media=n;window.dispatchEvent(new Event("astro:media"));})();`;
+export {
+  media_prebuilt_default as default
+};