feat: add admin user serializer with accept invitation url

packages/backend/test/mocks/rest/api/v1/admin/users/create-user.js

@@ -0,0 +1,30 @@
+import appConfig from '../../../../../../../src/config/app.js';
+
+const createUserMock = (user) => {
+  const userData = {
+    createdAt: user.createdAt.getTime(),
+    email: user.email,
+    fullName: user.fullName,
+    id: user.id,
+    status: user.status,
+    updatedAt: user.updatedAt.getTime(),
+    acceptInvitationUrl: user.acceptInvitationUrl,
+  };
+
+  if (appConfig.isCloud && user.trialExpiryDate) {
+    userData.trialExpiryDate = user.trialExpiryDate.toISOString();
+  }
+
+  return {
+    data: userData,
+    meta: {
+      count: 1,
+      currentPage: null,
+      isArray: false,
+      totalPages: null,
+      type: 'User',
+    },
+  };
+};
+
+export default createUserMock;