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/node-domexception/.history/index_20210527204259.js

@@ -0,0 +1,9 @@
+if (!globalThis.DOMException) {
+  const { MessageChannel } = require('worker_threads')
+  const port = new MessageChannel().port1
+  const ab = new ArrayBuffer()
+  try { port.postMessage(ab, [ab, ab]) }
+  catch (err) { globalThis.DOMException = err.constructor }
+}
+
+module.exports