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/node-mock-http/dist/_polyfill/buffer/nodeless.d.cts

@@ -0,0 +1,25 @@
+/**
+ * The Buffer constructor returns instances of `Uint8Array` that have their
+ * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
+ * `Uint8Array`, so the returned instances will have all the node `Buffer` methods
+ * and the `Uint8Array` methods. Square bracket notation works as expected -- it
+ * returns a single octet.
+ *
+ * The `Uint8Array` prototype remains unmodified.
+ */
+declare function Buffer(arg: any, encodingOrOffset: any, length: any): any;
+declare namespace Buffer {
+    var TYPED_ARRAY_SUPPORT: boolean;
+    var poolSize: number;
+    var from: (value: any, encodingOrOffset: any, length?: any) => any;
+    var alloc: (size: any, fill: any, encoding: any) => Uint8Array<any>;
+    var allocUnsafe: (size: any) => Uint8Array<any>;
+    var allocUnsafeSlow: (size: any) => Uint8Array<any>;
+    var isBuffer: (b: any) => boolean;
+    var compare: (a: any, b: any) => 0 | 1 | -1;
+    var isEncoding: (encoding: any) => boolean;
+    var concat: (list: any, length?: any) => Uint8Array<any>;
+    var byteLength: (string: any, encoding: any) => any;
+}
+
+export { Buffer };