[🔧Chore] Codecov 및 PR CI 리포트 개선

[yong203]

작업 내용

• Codecov project/patch status를 informational로 전환합니다.
• Codecov 댓글에서 실패 판정 중심의 diff 영역을 제거합니다.
• JaCoCo XML에서 전체 line coverage를 계산합니다.
• 테스트, 커버리지, Codecov 업로드 결과를 고정 PR 댓글로 제공합니다.
• PR별 Codecov sunburst 그래프와 workflow 링크를 표시합니다.
• 댓글 쓰기 권한을 코드를 실행하지 않는 pr-report job으로 격리합니다.
• 외부 fork PR에서는 댓글 작성을 건너뜁니다.

관련 이슈

• close [🔧Chore] Codecov 및 PR CI 리포트 개선 #46

문서 반영

• 반영한 문서:
  • docs/testing.md
  • docs/status.md

확인 결과

• ./gradlew test
• ./gradlew check
• git diff --check
• Codecov 공식 validator
• workflow YAML 및 내장 Python/JavaScript 문법 검증
• 실제 PR 고정 댓글과 sunburst 렌더링은 이 PR의 Actions에서 확인

Summary by CodeRabbit

• 새 기능
  • PR에서 테스트 결과와 JaCoCo 라인 커버리지, 업로드 결과를 자동으로 고정 댓글로 확인할 수 있게 되었습니다.
  • PR별 워크플로우 실행 링크와 Codecov 상세 링크가 함께 표시됩니다.
• 개선 사항
  • Codecov의 프로젝트/패치 상태를 정보성으로 처리하고, 코멘트 레이아웃이 더 간결하게 변경되었습니다.
• 문서
  • 테스트/커버리지 확인 정책과 PR CI 리포트 동작 방식이 문서에 추가되었습니다.
  • 상태 페이지에 Open Maintenance Work 항목이 갱신되었습니다.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: 12567c85-0fa4-45d3-b3b3-44b232e6e6b7

📥 Commits

Reviewing files that changed from the base of the PR and between 7d5bb23 and 9e45329.

📒 Files selected for processing (3)

• .github/workflows/backend-ci.yml
• docs/status.md
• docs/testing.md

✅ Files skipped from review due to trivial changes (1)

• docs/status.md

🚧 Files skipped from review as they are similar to previous changes (1)

• docs/testing.md

---

📝 Walkthrough

Walkthrough

coverage 잡에 JaCoCo 라인 커버리지 출력과 파싱 단계를 추가하고, PR 전용 pr-report 잡으로 고정 코멘트를 생성·갱신하도록 했다. Codecov 상태를 informational로 바꾸고 코멘트 레이아웃을 조정했으며, 관련 문서를 업데이트했다.

Changes

PR CI 리포트 및 Codecov 개선

Layer / File(s)	Summary
Codecov informational 상태 및 레이아웃 변경 codecov.yml	project.default와 patch.default를 informational: true로 설정하고, comment.layout를 condensed_header, condensed_files, condensed_footer로 변경한다.
coverage 잡 출력 정의 및 JaCoCo XML 파싱 .github/workflows/backend-ci.yml	coverage 잡에 line_coverage, covered_lines, total_lines, coverage_report_outcome, codecov_outcome 출력 필드를 추가하고, jacocoTestReport.xml의 LINE counter를 읽어 $GITHUB_OUTPUT에 기록한다.
pr-report 잡: PR 고정 댓글 생성/갱신 .github/workflows/backend-ci.yml	test/coverage 결과를 받아 동일 리포지토리 PR에서만 동작하는 pr-report 잡을 추가하고, 기존 봇 코멘트를 마커로 찾아 갱신하거나 새로 생성한다. 코멘트에는 테스트 상태, JaCoCo line coverage, 업로드 결과, 실행 링크, Codecov PR 링크가 포함된다.
문서 갱신 docs/testing.md, docs/status.md	docs/testing.md에 Pull Request CI Report 섹션을 추가해 pr-report 동작, 권한, fork PR 처리를 적고, docs/status.md의 Open Maintenance Work 표에 이슈 #46 항목을 추가한다.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	제목이 Codecov와 PR CI 리포트 개선이라는 핵심 변경을 간결하게 요약합니다.
Description check	✅ Passed	작업 내용, 관련 이슈, 문서 반영, 확인 결과가 템플릿 구조와 대부분 일치합니다.
Linked Issues check	✅ Passed	요구된 Codecov informational 전환, 고정 PR 댓글, 권한 분리, fork 건너뜀 등 핵심 목표가 반영되었습니다.
Out of Scope Changes check	✅ Passed	변경은 codecov.yml, 워크플로우, 문서로 제한되어 링크된 범위 밖의 변경은 보이지 않습니다.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

Warning

There were issues while running some tools. Please review the errors and either fix the tool's configuration or disable the tool if it's a critical failure.

🔧 markdownlint-cli2 (0.22.1)

docs/testing.md

markdownlint-cli2 v0.22.1 (markdownlint v0.40.0)
Error: Unable to use configuration file '/coderabbit-1.markdownlint-cli2.jsonc'; ENOENT: no such file or directory, open '/coderabbit-1.markdownlint-cli2.jsonc'
at throwForConfigurationFile (file:///usr/local/lib/node_modules/markdownlint-cli2/markdownlint-cli2.mjs:48:9)
at readOptionsOrConfig (file:///usr/local/lib/node_modules/markdownlint-cli2/markdownlint-cli2.mjs:169:5)
at async main (file:///usr/local/lib/node_modules/markdownlint-cli2/markdownlint-cli2.mjs:927:21)
at async file:///usr/local/lib/node_modules/markdownlint-cli2/markdownlint-cli2-bin.mjs:14:22 {
[cause]: Error: ENOENT: no such file or directory, open '/coderabbit-1.markdownlint-cli2.jsonc'
at async open (node:internal/fs/promises:640:25)
at async Object.readFile (node:internal/fs/promises:1287:14)
at async readOptionsOrConfig (file:///usr/local/lib/node_modules/markdownlint-cli2/markdownlint-cli2.mjs:141:17)
at async main (file:///usr/local/lib/node_modules/markdownlint-cli2/markdownlint-cli2.mjs:927:21)
at async file:///usr/local/lib/node_modules/markdownlint-cli2/markdownlint-cli2-bin.mjs:14:22 {
errno: -2,
code: 'ENOENT',
syscall: 'open',
path: '/coderabbit-1.markdownlint-cli2.jsonc'
}
}

docs/status.md

markdownlint-cli2 v0.22.1 (markdownlint v0.40.0)
Error: Unable to use configuration file '/coderabbit-0.markdownlint-cli2.jsonc'; ENOENT: no such file or directory, open '/coderabbit-0.markdownlint-cli2.jsonc'
at throwForConfigurationFile (file:///usr/local/lib/node_modules/markdownlint-cli2/markdownlint-cli2.mjs:48:9)
at readOptionsOrConfig (file:///usr/local/lib/node_modules/markdownlint-cli2/markdownlint-cli2.mjs:169:5)
at async main (file:///usr/local/lib/node_modules/markdownlint-cli2/markdownlint-cli2.mjs:927:21)
at async file:///usr/local/lib/node_modules/markdownlint-cli2/markdownlint-cli2-bin.mjs:14:22 {
[cause]: Error: ENOENT: no such file or directory, open '/coderabbit-0.markdownlint-cli2.jsonc'
at async open (node:internal/fs/promises:640:25)
at async Object.readFile (node:internal/fs/promises:1287:14)
at async readOptionsOrConfig (file:///usr/local/lib/node_modules/markdownlint-cli2/markdownlint-cli2.mjs:141:17)
at async main (file:///usr/local/lib/node_modules/markdownlint-cli2/markdownlint-cli2.mjs:927:21)
at async file:///usr/local/lib/node_modules/markdownlint-cli2/markdownlint-cli2-bin.mjs:14:22 {
errno: -2,
code: 'ENOENT',
syscall: 'open',
path: '/coderabbit-0.markdownlint-cli2.jsonc'
}
}

---

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

[github-actions]

Backend CI Report

Item	Result
Tests	✅ Passed
JaCoCo line coverage	96.86% (556/574 lines)
Coverage report	✅ Generated
Codecov upload	✅ Uploaded

View workflow run | View coverage details

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

📢 Thoughts on this report? Let us know!

[coderabbitai]

Actionable comments posted: 1

🧹 Nitpick comments (1)

.github/workflows/backend-ci.yml (1)

214-238: 🩺 Stability & Availability | 🔵 Trivial | 💤 Low value

동시 실행 시 중복 댓글 가능성(선택).

같은 PR에 대해 두 개의 workflow 실행이 거의 동시에 진행되면 listComments 조회와 createComment 사이의 경합으로 마커 댓글이 중복 생성될 수 있습니다. 빈도가 낮다면 그대로 두어도 무방하나, concurrency 그룹으로 PR 단위 직렬화를 고려할 수 있습니다.

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In @.github/workflows/backend-ci.yml around lines 214 - 238, The PR comment
posting logic in the GitHub Actions workflow can race when multiple runs execute
at the same time, causing duplicate marker comments. Update the workflow around
the existing listComments/updateComment/createComment flow to serialize
executions per PR by adding a concurrency group keyed on the pull request, so
only one run can post or update the comment at a time.

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In @.github/workflows/backend-ci.yml:
- Line 164: The GitHub Actions step using actions/github-script is pinned only
to the v9 tag, which does not satisfy the required policy. Update the workflow
entry that references actions/github-script so it uses a specific commit SHA
instead of `@v9`, keeping the step behavior the same while making the dependency
fully pinned.

---

Nitpick comments:
In @.github/workflows/backend-ci.yml:
- Around line 214-238: The PR comment posting logic in the GitHub Actions
workflow can race when multiple runs execute at the same time, causing duplicate
marker comments. Update the workflow around the existing
listComments/updateComment/createComment flow to serialize executions per PR by
adding a concurrency group keyed on the pull request, so only one run can post
or update the comment at a time.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: 7c5bdc4e-335f-4eac-bd82-705e3d75b1ea

📥 Commits

Reviewing files that changed from the base of the PR and between f3b4d75 and 7d5bb23.

📒 Files selected for processing (4)

• .github/workflows/backend-ci.yml
• codecov.yml
• docs/status.md
• docs/testing.md