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/astro/dist/vite-plugin-html/transform/index.d.ts

@@ -0,0 +1,4 @@
+export declare function transform(code: string, id: string): Promise<{
+    code: string;
+    map: import("magic-string").SourceMap;
+}>;