feat: add placeholder page for new item creation form

myfavstuff/app/add-item/page.js

@@ -0,0 +1,11 @@
+// app/add-item/page.js
+
+export default function AddItemPage() {
+  return (
+    <div>
+      <h1>Add New Item</h1>
+      <p>This is where the form to add a new item will go.</p>
+      {/* You can add your form component or elements here */}
+    </div>
+  );
+}