⚡ Bolt: [성능 개선] EmailDetail 컴포넌트 리렌더링 최적화

[seonghobae]

💡 무엇을: WorkspaceHome이 불필요하게 렌더링될 때 EmailDetail도 렌더링되는 것을 방지하기 위해 React.memo로 래핑했습니다.

🎯 왜: 선택된 이메일이 변경되지 않았음에도 부모 컴포넌트의 상태(레이아웃 등) 변경으로 인해 EmailDetail이 리렌더링되면서 성능 저하를 일으킬 수 있습니다.

📊 영향: 선택된 이메일이 동일한 상태에서 불필요한 React reconciliation을 크게 줄여 성능을 향상시켰습니다.

🔬 측정 방법: React Profiler를 사용하여 Workspace 탭 간 이동 시 EmailDetail이 리렌더링되지 않음을 확인할 수 있습니다.

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PR created automatically by Jules for task 17752780281608571052 started by @seonghobae

Summary by CodeRabbit

• Performance Improvements
  • Improved email detail rendering by preventing unnecessary updates when its displayed information remains unchanged.
• Documentation
  • Added guidance on optimizing expensive components affected by unrelated page updates.

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No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro Plus

Run ID: 92a41ab8-08d2-452c-b1d6-3db7e88f1824

📥 Commits

Reviewing files that changed from the base of the PR and between f0207b4 and 3ca6507.

📒 Files selected for processing (2)

• .jules/bolt.md
• frontend/src/components/EmailDetail.tsx

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📝 Walkthrough

Walkthrough

EmailDetail is wrapped with React.memo to skip renders when its props do not change. The component keeps the same public props. A learning note documents memoization for expensive child components.

Changes

EmailDetail memoization

Layer / File(s)	Summary
Memoize EmailDetail frontend/src/components/EmailDetail.tsx, .jules/bolt.md	EmailDetail now uses React.memo with its existing emailId and actionCommand props. The learning note documents the memoization pattern.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Mergeability Score: ⚪ Minimal · up to 3ca65

The PR applies localized rendering memoization to EmailDetail. No actionable merge-blocking risk remains beyond normal review and validation.

Possibly related PRs

• ContextualWisdomLab/naruon#1313: Optimizes React rendering in calendar views with useMemo, while this PR memoizes EmailDetail.

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly identifies the EmailDetail re-render optimization, which matches the main change in the pull request.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch bolt-memoize-email-detail-17752780281608571052

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