chore: migrate backend to monorepo apps and biome

apps/notifications/src/notifications.controller.spec.ts

@@ -0,0 +1,22 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { NotificationsController } from './notifications.controller';
+import { NotificationsService } from './notifications.service';
+
+describe('NotificationsController', () => {
+  let notificationsController: NotificationsController;
+
+  beforeEach(async () => {
+    const app: TestingModule = await Test.createTestingModule({
+      controllers: [NotificationsController],
+      providers: [NotificationsService],
+    }).compile();
+
+    notificationsController = app.get<NotificationsController>(NotificationsController);
+  });
+
+  describe('root', () => {
+    it('should return "Hello World!"', () => {
+      expect(notificationsController.getHello()).toBe('Hello World!');
+    });
+  });
+});