fix adapters

adapters/persistence/inmemory/achievement/InMemoryAchievementRepository.test.ts

@@ -0,0 +1,18 @@
+import { describe, expect, it } from 'vitest';
+import { InMemoryAchievementRepository } from './InMemoryAchievementRepository';
+
+describe('adapters/persistence/inmemory/achievement/InMemoryAchievementRepository', () => {
+  it('saves and queries achievements', async () => {
+    const repo = new InMemoryAchievementRepository();
+
+    const achievement: { id: string } = { id: 'a1' };
+
+    await repo.save(achievement as unknown as Parameters<InMemoryAchievementRepository['save']>[0]);
+
+    const found = await repo.findById('a1');
+    expect((found as { id: string } | null)?.id).toBe('a1');
+
+    const all = await repo.findAll();
+    expect(all.map(a => (a as { id: string }).id)).toContain('a1');
+  });
+});