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/crossws/dist/shared/crossws.By9qWDAI.mjs

@@ -0,0 +1,8 @@
+class WSError extends Error {
+  constructor(...args) {
+    super(...args);
+    this.name = "WSError";
+  }
+}
+
+export { WSError as W };