⚡ Bolt: Memoize email list rendering

[seonghobae]

💡 What: Extracted email list array mapping into a useMemo block in EmailList.tsx.
🎯 Why: Typing in the search input was causing the entire long list of emails to re-render inline, blocking the main thread and resulting in poor typing performance.
📊 Impact: Prevents O(N) array mapping during unrelated state updates like search input keystrokes, significantly improving input responsiveness.
🔬 Measurement: Verify by typing rapidly in the "맥락 검색" input field inside the Email tab and observing the reduced CPU profile and smooth input.

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PR created automatically by Jules for task 10592966563809347868 started by @seonghobae

Summary by CodeRabbit

• Performance Improvements
  • Improved email list rendering performance by preventing unnecessary recalculation when unrelated search or UI state changes.
  • Preserved existing loading, error, empty-state, and email list displays.

[google-labs-jules]

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[coderabbitai]

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: f06c9cf6-e356-4348-8a6a-1f7ae108f885

📥 Commits

Reviewing files that changed from the base of the PR and between eae74e2 and d73a8eb.

📒 Files selected for processing (2)

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

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📝 Walkthrough

Walkthrough

EmailList now memoizes its loading, error, empty, and mapped email content with useMemo, then renders the memoized result. Documentation records the intended dependency-based optimization.

Changes

EmailList rendering optimization

Layer / File(s)	Summary
Memoized email content frontend/src/components/EmailList.tsx, .jules/bolt.md	EmailList consolidates its conditional states and email mapping in useMemo, renders the memoized content in ScrollArea, and documents the optimization.
Estimated code review effort: 2 (Simple)	~10 minutes

Possibly related PRs

• ContextualWisdomLab/naruon#412: Both changes optimize EmailList row rendering and re-render behavior.
• ContextualWisdomLab/naruon#519: Both changes target unnecessary email-list re-renders.
• ContextualWisdomLab/naruon#1170: Both changes memoize inline array-to-JSX list rendering.

Suggested reviewers: copilot, opencode-agent

🚥 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 and concisely describes the main change: memoizing email list rendering.
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-list-10592966563809347868

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_{Comment @coderabbitai help to get the list of available commands.}

[seonghobae]

Closing after Loop drain: permanently blocked — branch was updated onto develop for mergeability, which cleared prior APPROVED robot evidence; re-review (CodeRabbit/OpenCode) and/or central gate jobs (metadata-only gate evaluation, coverage-evidence) remained pending/stuck without a re-runnable workflow handle. Not force-merging (merge-gate policy). Re-open a focused PR when robot capacity is available. Related product security fixes that reimplemented cleanly remain on branch goal/carddav-path-traversal-decode (#1206) for relaunch.

[google-labs-jules]

Closing after Loop drain: permanently blocked — branch was updated onto develop for mergeability, which cleared prior APPROVED robot evidence; re-review (CodeRabbit/OpenCode) and/or central gate jobs (metadata-only gate evaluation, coverage-evidence) remained pending/stuck without a re-runnable workflow handle. Not force-merging (merge-gate policy). Re-open a focused PR when robot capacity is available. Related product security fixes that reimplemented cleanly remain on branch goal/carddav-path-traversal-decode (#1206) for relaunch.

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

[github-actions]

PR governance metadata gate update for 733283b1b56ca85159641bfe6a3cd0832a13fdc3: no current blocking failures remain.

PR governance metadata gate is ready; all current-head requirements passed.

[seonghobae]

Closing as superseded by #1214. The selected branch carries the same EmailList memoization on the current base, keeps loading/error/empty-state rendering straightforward, and also includes the related sent-folder set simplification and removal of committed local artifacts.

[google-labs-jules]

Closing as superseded by #1214. The selected branch carries the same EmailList memoization on the current base, keeps loading/error/empty-state rendering straightforward, and also includes the related sent-folder set simplification and removal of committed local artifacts.

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