Fix : Service Worker(/sw.js) Cache-Control 헤더 추가 (#239)

[GulSam00]

📌 PR 제목

[Fix] : Service Worker(/sw.js) Cache-Control 헤더 추가

📌 변경 사항

• apps/web/next.config.ts에 async headers() 추가
• /sw.js 응답에 Cache-Control: public, max-age=0, must-revalidate 적용
• 결과적으로 브라우저가 매 페이지 로드마다 SW 갱신 여부를 확인하게 되어, main 머지 후 구 Service Worker의 precache 매니페스트가 최대 24시간 살아남던 위험을 제거

💬 추가 참고 사항

• close fix : Service Worker(/sw.js) 캐시 헤더 추가로 배포 반영 지연 방지 #239
• 본 PR은 캐시 헤더 한 건만 추가한다. 후속 작업 후보는 별도 이슈로 분리한다.
  • /api/version 응답에 Cache-Control: no-store 적용
  • PWARegister에 SW updatefound 감지 + 새로고침 안내 토스트 추가
  • /data/changelog.json의 SW precache 제외 검토
• 검증
  • pnpm --filter web build 성공 (타입 체크 포함, 신규 에러 0)
  • pnpm --filter web lint 통과 (신규 warning 0, 기존 warning만 존재)
  • pnpm --filter web format 통과 (포맷 변경 없음)
  • 테스트 스위트는 프로젝트 미구성

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Project	Deployment	Actions	Updated (UTC)
singcode	Ready	Preview, Comment	May 19, 2026 10:26am

[GulSam00]

/describe

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[GulSam00]

/review

[GulSam00]

/improve

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