chore: migrate backend to monorepo apps and biome

apps/tasks/src/tasks.controller.spec.ts

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