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-fileurl/index.js

@@ -0,0 +1,15 @@
+function vitePluginFileURL() {
+  return {
+    name: "astro:vite-plugin-file-url",
+    enforce: "pre",
+    resolveId(source, importer) {
+      if (source.startsWith("file://")) {
+        const rest = source.slice(7);
+        return this.resolve(rest, importer);
+      }
+    }
+  };
+}
+export {
+  vitePluginFileURL as default
+};