🎨 Palette: 빈 디렉토리 이름에 대한 Fallback 제공을 통한 접근성 향상

[seonghobae]

💡 What: 루트 디렉토리 생성 시 발생하는 빈 <title>과 <h1>을 방지하기 위해 절대 경로를 fallback으로 사용하도록 수정했습니다 (name.ifEmpty { absolutePath }).
🎯 Why: 시스템 루트 디렉토리는 getName() 호출 시 빈 문자열을 반환하여 스크린 리더 사용자가 해당 페이지의 목적을 파악할 수 없게 만드는 접근성 문제를 해결합니다.
📸 Before/After: 해당 없음 (시맨틱/스크린 리더 개선).
♿ Accessibility: 비어 있던 주요 HTML 시맨틱 태그(title, h1)가 적절한 경로 정보로 채워져 문서 구조를 명확하게 합니다.

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PR created automatically by Jules for task 15344805252248442131 started by @seonghobae

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