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/@libsql/hrana-client/lib-esm/id_alloc.d.ts

@@ -0,0 +1,6 @@
+export declare class IdAlloc {
+    #private;
+    constructor();
+    alloc(): number;
+    free(id: number): void;
+}