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/@tailwindcss/vite/dist/index.d.mts

@@ -0,0 +1,13 @@
+import { Plugin } from 'vite';
+
+type PluginOptions = {
+    /**
+     * Optimize and minify the output CSS.
+     */
+    optimize?: boolean | {
+        minify?: boolean;
+    };
+};
+declare function tailwindcss(opts?: PluginOptions): Plugin[];
+
+export { type PluginOptions, tailwindcss as default };