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/@astrojs/telemetry/dist/config-keys.js

@@ -0,0 +1,8 @@
+const TELEMETRY_ENABLED = "telemetry.enabled";
+const TELEMETRY_NOTIFY_DATE = "telemetry.notifiedAt";
+const TELEMETRY_ID = `telemetry.anonymousId`;
+export {
+  TELEMETRY_ENABLED,
+  TELEMETRY_ID,
+  TELEMETRY_NOTIFY_DATE
+};