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-astro-server/error.d.ts

@@ -0,0 +1,7 @@
+import type { ModuleLoader } from '../core/module-loader/index.js';
+import type { AstroConfig } from '../types/public/config.js';
+import type { DevPipeline } from './pipeline.js';
+export declare function recordServerError(loader: ModuleLoader, config: AstroConfig, { logger }: DevPipeline, _err: unknown): {
+    error: Error;
+    errorWithMetadata: import("../core/errors/errors.js").ErrorWithMetadata;
+};