kaizen: 単一の builder-agent テストを主要モジュール別の TypeScript テストへ分割しました。 (#75)

[s-hiraoku]

Closes #75

Summary

単一の builder-agent テストを主要モジュール別の TypeScript テストへ分割しました。
AgentRunner のフォールバック分類、CLI 終了コード、artifacts、SelfReview、types の回帰テストを整理・追加しました。
既存の検証観点は移植し、旧 test/builder-agent.test.js は削除しました。

Builder notes

検証: set -e; npm test; npm run validate:json; test -f skills/gh-link-issue-pr/SKILL.md && test -f skills/kaizen-bug-router/SKILL.md && test -f skills/pr-guardian/SKILL.md が成功。protected path の変更なし。

Provider evidence:

• codex: exitCode=0, status=selected, failureClass=none, fallbackReason=none, payloadSource=last-message
  Selected backend: codex
  Final payload source: last-message

Verification

• npm test
• npm run validate:json
• test -f skills/gh-link-issue-pr/SKILL.md && test -f skills/kaizen-bug-router/SKILL.md && test -f skills/pr-guardian/SKILL.md

Verifier

verifier: open_pr_with_warning
summary: Open PR with warning and 2 should_fix item(s); risk is medium.
notes: evidence_grade=reported
risk=medium
confidence=60
should_fix=Verification output contains a non-blocking risk signal.; Verification output contains a non-blocking risk signal.

Kaizen risk policy

Verifier cleared PR with warning: Open PR with warning and 2 should_fix item(s); risk is medium.

Changed files: 12
Changed lines: 2893

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Review details

⚙️ Run configuration

Configuration used: Repository: kaizen-agents-org/coderabbit/.coderabbit.yaml

Review profile: ASSERTIVE

Plan: Pro Plus

Run ID: 7d165446-b93b-4a61-bf15-d79a50c16b60

📥 Commits

Reviewing files that changed from the base of the PR and between 185c9c6 and 544c656.

📒 Files selected for processing (15)

• .gitignore
• package.json
• scripts/run-tests.js
• test/agents/AgentRunner.test.ts
• test/artifacts.test.ts
• test/builder-agent.test.js
• test/builder/BuilderAgent.test.ts
• test/cli.test.ts
• test/helpers.ts
• test/review/SelfReview.test.ts
• test/types/BuildRequest.test.ts
• test/types/BuildResult.test.ts
• test/types/DiscoveredIssue.test.ts
• test/types/KaizenLoopPayload.test.ts
• test/types/contracts.test.ts

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch kaizen/issue-75-split-test-coverage-per-module-after-the-js-to-t

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[s-hiraoku]

PR Guardian pass 1/5 summary:

• Final mergeability: mergeable, non-draft, mergeStateStatus CLEAN.
• Required checks: passing. Branch protection requires test; test passed on CI run 28726334977. CodeRabbit status is also passing.
• Watched runs: gh run watch 28726334977 --exit-status completed successfully; the run had already finished with success.
• Fixes pushed: none needed.
• Feedback inspected: paginated GraphQL read of PR comments, reviews, and reviewThreads completed with hasNextPage=false for each connection. No review threads or reviews were present.
• Feedback addressed/skipped: CodeRabbit posted a rate-limit/review-availability notice only; it did not contain actionable code feedback, so no code change was required.
• Remaining blockers: none found. I did not merge the PR.

[chatgpt-codex-connector]

💡 Codex Review

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Reviewed commit: 827747b561

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• Mark a draft as ready
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