enhance(backend): テストの高速化 (#12939)

* enhance(backend): テストの高速化

* add ls

* 自動的にマージされるようなので不要

* 起動方法を揃える

* fix test

packages/backend/test/unit/FileInfoService.ts

@@ -10,7 +10,7 @@ import { fileURLToPath } from 'node:url';
 import { dirname } from 'node:path';
 import { ModuleMocker } from 'jest-mock';
 import { Test } from '@nestjs/testing';
-import { describe, beforeAll, afterAll, test } from '@jest/globals';
+import { afterAll, beforeAll, describe, test } from '@jest/globals';
 import { GlobalModule } from '@/GlobalModule.js';
 import { FileInfoService } from '@/core/FileInfoService.js';
 //import { DI } from '@/di-symbols.js';