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/deterministic-object-hash/dist/isPlainObject.js

@@ -0,0 +1,27 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const objConstructorString = Function.prototype.toString.call(Object);
+function isPlainObject(value) {
+    //base object
+    if (typeof value !== 'object' ||
+        value === null ||
+        Object.prototype.toString.call(value) !== '[object Object]') {
+        return false;
+    }
+    //get the prototype
+    const proto = Object.getPrototypeOf(value);
+    //no prototype === all good
+    if (proto === null) {
+        return true;
+    }
+    //has own prop 'constructor'
+    if (!Object.prototype.hasOwnProperty.call(proto, 'constructor')) {
+        return false;
+    }
+    // validate that the constructor is `Object`
+    return (typeof proto.constructor === 'function' &&
+        proto.constructor instanceof proto.constructor &&
+        Function.prototype.toString.call(proto.constructor) === objConstructorString);
+}
+exports.default = isPlainObject;
+;