feat: Introduce toRequireProperty custom assertion

packages/backend/test/setup/insert-assertions.js

@@ -0,0 +1,8 @@
+import { expect } from 'vitest';
+import { toRequireProperty } from '../assertions/to-require-property';
+
+expect.extend({
+  async toRequireProperty(model, requiredProperty) {
+    return await toRequireProperty(model, requiredProperty);
+  },
+});