feat: 예외 처리 로깅 추가

[ccjngwn]

변경 사항

• 전역 예외 핸들러에 로깅을 추가했습니다.
• BusinessException, validation 실패, request body 파싱 실패는 warn 레벨로 기록합니다.
• 예상하지 못한 예외는 stack trace와 함께 error 레벨로 기록합니다.

배경

프론트에서 잘못된 요청을 보내거나 서버에서 에러 응답을 내려도 현재 서버 로그에서 원인을 확인하기 어려웠습니다. 운영 장애 확인 시 응답 코드와 메시지를 Docker logs에서 추적할 수 있도록 했습니다.

검증

• ./gradlew test 통과

Summary by CodeRabbit

• Bug Fixes
  • Improved error monitoring by recording detailed logs for business, validation, malformed request, and unexpected server errors.
  • Unexpected errors now include full diagnostic details in internal logs while preserving the existing error response for users.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 09641f72-af9b-4fc2-b8ab-4d4c32af1a99

📥 Commits

Reviewing files that changed from the base of the PR and between d8b289e and 24e4b1c.

📒 Files selected for processing (1)

• src/main/java/com/cotato/cokerthon/global/exception/GlobalExceptionHandler.java

---

📝 Walkthrough

Walkthrough

GlobalExceptionHandler now uses Lombok logging and records warning or error messages in each exception handler before returning the existing error responses.

Changes

Exception Handler Logging

Layer / File(s)	Summary
Add exception handler logging src/main/java/com/cotato/cokerthon/global/exception/GlobalExceptionHandler.java	Adds @Slf4j and logs business, validation, request parsing, and unexpected exceptions with their relevant codes, statuses, messages, or stack traces.

Estimated code review effort: 2 (Simple) | ~10 minutes

✨ 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 fix/add-error-logging

---

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