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/cli/domain/help-payload.d.ts

@@ -0,0 +1,7 @@
+export interface HelpPayload {
+    commandName: string;
+    headline?: string;
+    usage?: string;
+    tables?: Record<string, [command: string, help: string][]>;
+    description?: string;
+}