⚡ Bolt: [performance improvement] Remove intermediate array allocation in uniqueBusinessGroupId

[seonghobae]

💡 What:
uniqueBusinessGroupId 함수에서 new Set(existingGroups.map(...)) 패턴을 제거하고 for...of 루프를 사용하여 Set을 채우도록 변경했습니다.

🎯 Why:
기존 방식은 .map()을 호출할 때마다 새로운 중간 배열을 생성하여 가비지 컬렉터(GC)에 불필요한 부하를 주었습니다. 이는 React 애플리케이션의 렌더링 성능 저하(jank)를 유발할 수 있습니다.

📊 Impact:
중간 배열 할당으로 인한 O(N) GC 오버헤드를 제거하여, 그룹 할당과 같은 작업 시 메모리 사용량을 줄이고 실행 속도를 미세하게 개선했습니다.

🔬 Measurement:
frontend/src/erd/__tests__/businessGroups.test.ts 테스트가 모두 정상적으로 통과하는 것을 확인했습니다 (pnpm test). 메모리 할당 프로파일러를 통해 배열 생성이 줄어든 것을 확인할 수 있습니다.

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PR created automatically by Jules for task 16944190678593806605 started by @seonghobae

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[opencode-agent]

Pull request overview

OpenCode cannot approve yet because required coverage evidence did not pass.

Review outcome

1. HIGH .github/workflows/opencode-review.yml:1 - Coverage evidence did not prove required test/docstring evidence

• Problem: The required coverage-evidence job result was failure, so OpenCode cannot establish approval sufficiency for this head.

• Root cause: Automated approval is only valid when the same-head coverage-evidence job proves supported repository test suites passed and configured docstring gates passed or were advisory, or reports not applicable because no supported source files or package manifests exist. Missing, failed, skipped, unavailable, or unsupported-tooling test evidence is a blocker.

• Fix: Install or configure the repository test/docstring evidence tooling when source files or package manifests exist, rerun the current-head coverage-evidence job, and approve only after it reports success with required evidence or explicit no-source not-applicable evidence.

• Regression test: Keep the approval branch checking needs.coverage-evidence.result == success before posting APPROVE, and publish REQUEST_CHANGES when coverage-evidence blocker states such as cancelled, skipped, failed, unsupported-tooling, or below-100 evidence are present.

• Result: REQUEST_CHANGES

• Reason: coverage-evidence result was failure, so required test/docstring evidence was not proven for current head 47e9a00715474ef047a827a49a32d60657a7270f.

• Head SHA: 47e9a00715474ef047a827a49a32d60657a7270f

• Workflow run: 29881129740

• Workflow attempt: 1

Coverage evidence

Coverage evidence job did not run or did not publish coverage evidence.

Changed-File Evidence Map

flowchart LR
  PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
  Evidence --> S1["Changed file: bolt.md"]
  S1 --> I1["repository behavior"]
  I1 --> R1["Review risk: Changed file: bolt.md"]
  R1 --> V1["required checks"]
  Evidence --> S2["Frontend: businessGroups.ts"]
  S2 --> I2["browser runtime and bundle"]
  I2 --> R2["Review risk: Frontend: businessGroups.ts"]
  R2 --> V2["frontend tests"]

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[opencode-agent]

OpenCode Review Overview

• Head SHA: 47e9a00715474ef047a827a49a32d60657a7270f
• Workflow run: 29881129740
• Workflow attempt: 1
• Gate result: REQUEST_CHANGES (approval step)

Pull request overview

OpenCode cannot approve yet because required coverage evidence did not pass.

Review outcome

1. HIGH .github/workflows/opencode-review.yml:1 - Coverage evidence did not prove required test/docstring evidence

• Problem: The required coverage-evidence job result was failure, so OpenCode cannot establish approval sufficiency for this head.

• Root cause: Automated approval is only valid when the same-head coverage-evidence job proves supported repository test suites passed and configured docstring gates passed or were advisory, or reports not applicable because no supported source files or package manifests exist. Missing, failed, skipped, unavailable, or unsupported-tooling test evidence is a blocker.

• Fix: Install or configure the repository test/docstring evidence tooling when source files or package manifests exist, rerun the current-head coverage-evidence job, and approve only after it reports success with required evidence or explicit no-source not-applicable evidence.

• Regression test: Keep the approval branch checking needs.coverage-evidence.result == success before posting APPROVE, and publish REQUEST_CHANGES when coverage-evidence blocker states such as cancelled, skipped, failed, unsupported-tooling, or below-100 evidence are present.

• Result: REQUEST_CHANGES

• Reason: coverage-evidence result was failure, so required test/docstring evidence was not proven for current head 47e9a00715474ef047a827a49a32d60657a7270f.

• Head SHA: 47e9a00715474ef047a827a49a32d60657a7270f

• Workflow run: 29881129740

• Workflow attempt: 1

Coverage evidence

Coverage evidence job did not run or did not publish coverage evidence.

Changed-File Evidence Map

flowchart LR
  PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
  Evidence --> S1["Changed file: bolt.md"]
  S1 --> I1["repository behavior"]
  I1 --> R1["Review risk: Changed file: bolt.md"]
  R1 --> V1["required checks"]
  Evidence --> S2["Frontend: businessGroups.ts"]
  S2 --> I2["browser runtime and bundle"]
  I2 --> R2["Review risk: Frontend: businessGroups.ts"]
  R2 --> V2["frontend tests"]

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