feat: implement Presentation layer for User Logout / ユーザーログアウトのPresentation層実装

[zigzagdev]

Motivation / 目的

Implement the Presentation layer for POST /api/v1/user/logout to complete the User Logout API.

ユーザーログアウトAPI（POST /api/v1/user/logout）のPresentation層を実装し、ログアウト機能を完成させました。

What I have done / 実施内容

• AuthController: logout アクションを追加
  • $request->bearerToken() で現在のトークンを取得し LogoutUseCase::handle() に渡す
  • 200: ログアウト成功
  • 401: 未認証（auth:sanctum ミドルウェアが処理）
  • 500: その他エラー（Log::error）
• routes/api.php: POST /v1/user/logout を auth:sanctum ミドルウェア付きで登録
  • login / logout を Route::controller(AuthController::class)->prefix('user') にまとめて整理

Test Results / テスト結果

• LogoutTest::test_logout_returns_200_when_authenticated
• LogoutTest::test_logout_returns_401_when_unauthenticated
• LogoutTest::test_logout_returns_500_on_unexpected_error

Closes #411

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 62.21%. Comparing base (d2b599f) to head (cd841fb).

Additional details and impacted files

@@                  Coverage Diff                   @@
##             feat/user-logout     #538      +/-   ##
======================================================
+ Coverage               61.92%   62.21%   +0.28%     
- Complexity               1594     1604      +10     
======================================================
  Files                     134      135       +1     
  Lines                    8190     8252      +62     
======================================================
+ Hits                     5072     5134      +62     
  Misses                   3118     3118              

Files with missing lines	Coverage Δ
...pp/Packages/Features/Controller/AuthController.php	100.00% <100.00%> (ø)
src/app/Packages/Features/Tests/LogoutTest.php	100.00% <100.00%> (ø)

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[zigzagdev]

Ok