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/adapters/sse.d.ts

@@ -0,0 +1,13 @@
+import { Adapter, AdapterInstance, AdapterOptions } from '../index.js';
+import '../shared/crossws.BQXMA5bH.js';
+
+interface SSEAdapter extends AdapterInstance {
+    fetch(req: Request): Promise<Response>;
+}
+interface SSEOptions extends AdapterOptions {
+    bidir?: boolean;
+}
+declare const sseAdapter: Adapter<SSEAdapter, SSEOptions>;
+
+export { sseAdapter as default };
+export type { SSEAdapter, SSEOptions };