⚡ Bolt: FileSystemArtifactStore에서 16진수 변환 성능 최적화

[seonghobae]

💡 What: FileSystemArtifactStore.java의 sha256Hex 메서드에서 사용되던 비효율적인 String.format("%02x", b) 루프를 Java 17의 java.util.HexFormat.of().formatHex(raw)로 교체했습니다.
🎯 Why: 루프 내에서 String.format을 호출하면 반복적인 문자열 파싱과 불필요한 객체 할당이 발생하여 성능 저하 및 가비지 컬렉션 부하를 초래합니다.
📊 Impact: 가비지 컬렉션 부하를 대폭 줄이고 바이트 배열을 16진수 문자열로 변환하는 속도를 크게 향상시킵니다.
🔬 Measurement: mvn test 명령을 실행하여 모든 테스트가 정상적으로 통과되는지 확인합니다.

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PR created automatically by Jules for task 18184494398880661187 started by @seonghobae

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[opencode-agent]

Pull request overview

OpenCode model providers were unavailable for this same-head run, but deterministic current-head evidence is clean: coverage evidence passed, peer GitHub Checks are complete, medium-or-higher code-scanning alerts are clear, mergeability is clean, and reviewer threads are resolved or outdated.

Findings

No blocking findings.

Evidence

• Result: APPROVE
• Reason: current-head model-unavailable evidence fallback; coverage, docstring, peer GitHub Checks, code-scanning alerts, mergeability, and review threads were clear for current head.
• Scope: unsupported
• Changed files: 0
• Model-pool outcome: exhausted
• Head SHA: c49b4f7b92ddd1c60f79f3933ce34f87219f1f56
• Workflow run: 29208602328
• Workflow attempt: 1

This fallback does not suppress failed checks, medium-or-higher code-scanning alerts, merge conflicts, unresolved reviewer threads, or failed coverage evidence; any of those conditions still publish REQUEST_CHANGES or leave the approval state unchanged.

[opencode-agent]

Pull request overview

OpenCode model providers were unavailable for this same-head run, but deterministic current-head evidence is clean: coverage evidence passed, peer GitHub Checks are complete, medium-or-higher code-scanning alerts are clear, mergeability is clean, and reviewer threads are resolved or outdated.

Findings

No blocking findings.

Evidence

• Result: APPROVE
• Reason: current-head model-unavailable evidence fallback; coverage, docstring, peer GitHub Checks, code-scanning alerts, mergeability, and review threads were clear for current head.
• Scope: unsupported
• Changed files: 0
• Model-pool outcome: exhausted
• Head SHA: 9401dd5e2e3e7dc0bc4735f9d85eb7872d460480
• Workflow run: 29218833127
• Workflow attempt: 1

This fallback does not suppress failed checks, medium-or-higher code-scanning alerts, merge conflicts, unresolved reviewer threads, or failed coverage evidence; any of those conditions still publish REQUEST_CHANGES or leave the approval state unchanged.