🎨 Palette: [접근성 개선] Context Section 키보드 포커스 및 ARIA 컨트롤 추가

[seonghobae]

💡 What

ContextSection 컴포넌트의 아코디언 토글 버튼에 키보드 포커스 링(focus-visible 속성)을 추가하고 useId()를 사용하여 aria-controls를 연결했습니다. 그리고 컴포넌트에 대한 100% 테스트 커버리지를 제공하는 단위 테스트도 추가했습니다.

🎯 Why

기존의 토글 버튼에는 시각적 키보드 포커스가 누락되어, 탭(Tab) 키로 탐색할 때 사용자가 포커스된 요소를 인지하기 어려웠습니다. 더불어 스크린 리더 사용자를 위해 트리거 버튼과 제어되는 콘텐츠 블록 간의 연관성(aria-controls)을 명확히 명시할 필요가 있었습니다. 마지막으로, 변경된 코드 및 기능이 올바르게 동작함을 보장하기 위해 100% 테스트 커버리지를 확보해야 했습니다.

📸 Before/After

(비주얼 변경 없음: 기존처럼 작동하되 탭 포커싱 및 스크린 리더에서만 차이가 있음)

♿ Accessibility

• <button> 요소에 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-inset을 추가하여 키보드 탭 이동 시 명확한 포커스 표시
• useId()로 고유 ID를 생성해 <button>의 aria-controls와 접히는 <div>의 id를 올바르게 매핑
• 이러한 변경 사항과 접근성 속성 상태를 검증하는 테스트 코드(jsdom 및 @testing-library/react)를 추가하여, 접근성이 지속적으로 유지되도록 회귀 방지.

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PR created automatically by Jules for task 14035042064456707482 started by @seonghobae

[google-labs-jules]

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[seonghobae]

Closing as superseded during org-wide PR triage. Keeping #210 as the canonical PR for the same overlapping topic: ContextSection/accessibility accordion. This PR is stale/conflicted or has review blockers, so retaining one current PR reduces duplicated review and merge conflict work.

[google-labs-jules]

Closing as superseded during org-wide PR triage. Keeping #210 as the canonical PR for the same overlapping topic: ContextSection/accessibility accordion. This PR is stale/conflicted or has review blockers, so retaining one current PR reduces duplicated review and merge conflict work.

Understood. Acknowledging that this work is now obsolete and stopping work on this task.