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-integrations-container/index.d.ts

@@ -0,0 +1,8 @@
+import type { Plugin as VitePlugin } from 'vite';
+import type { Logger } from '../core/logger/core.js';
+import type { AstroSettings } from '../types/astro.js';
+/** Connect Astro integrations into Vite, as needed. */
+export default function astroIntegrationsContainerPlugin({ settings, logger, }: {
+    settings: AstroSettings;
+    logger: Logger;
+}): VitePlugin;