docs: converge #687 rate-limit reader authority

[seonghobae]

Documentation authority RED

Protected source now includes merged #687 exact 98ec07552f4081bd4ff6b25f1f3ed691c0f3f2b9, but the canonical CHANGELOG/product-gap authority still ends at #685. Test-only exact d22f6eb48550b50abed8e19bc17ca884a62727cf requires #687's 256-byte request / 4,096-byte decision locked-reader normalization, stable diagnostics, immutable-release separation, and non-transfer of foreign authority before documentation can be considered current.

This lane is documentation/test authority only; runtime source is not to be changed.

Summary by CodeRabbit

• 버그 수정

  • 분산 /exchange 요청에서 이미 잠긴 본문을 읽지 못할 때 기존 400 malformed_json 응답 계약을 유지합니다.
  • rate-limit 결정 응답을 읽을 수 없는 경우 안정적인 진단 메시지와 함께 안전하게 실패합니다.

• 문서

  • 관련 동작과 권한 경계를 변경 로그 및 기술 기준 문서에 기록했습니다.

• 테스트

  • 잠긴 요청·응답 본문 처리와 기존 오류 계약을 검증하는 테스트를 추가했습니다.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Advanced

Run ID: cd2cdc7e-7fed-483e-a661-ff900f4fbb92

📥 Commits

Reviewing files that changed from the base of the PR and between f9d08f4 and 3633647.

📒 Files selected for processing (3)

• CHANGELOG.md
• docs/product-technical-gap-baseline.md
• test/documentation-codegraph-locked-body-current.test.ts

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📝 Walkthrough

Walkthrough

PR #687의 rate-limit reader 획득 실패 계약을 changelog와 기술 baseline에 기록하고, 관련 source 구조와 권한 경계를 검증하는 문서를 추가합니다.

Changes

Rate-limit reader 획득 계약

Layer / File(s)	Summary
Reader 획득 실패 계약 기록 CHANGELOG.md, docs/product-technical-gap-baseline.md	잠긴 256-byte request는 400 malformed_json으로 처리하고, 잠긴 4,096-byte decision response는 안정적인 rate-limit Durable Object decision body could not be read 진단으로 처리하는 계약을 기록합니다. 기존 reader-lock, byte limit, JSON admission 및 권한 경계를 유지한다고 명시합니다.
Baseline 및 문서화 검증 docs/product-technical-gap-baseline.md, test/documentation-codegraph-locked-body-current.test.ts	보호된 source 식별자와 PR 기록을 갱신합니다. 테스트는 관련 commit hash, body 크기, 진단 문구, getReader()의 try/catch 구조 및 권한 유지 문구를 확인합니다.

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

Change: Other

✨ 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 docs/noema-687-authority-20260913

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[seonghobae]

Exact-head review on 3633647b5531bad3649c62751c1b5a40356b94f7: the three-file diff is documentation/test authority only, accurately reflects merged #687 source semantics, preserves immutable-release and foreign-owner boundaries, and does not alter runtime source. Hosted application CI, reviewer-ci, Security Scan, and patch-validator-image are all terminal SUCCESS on this head; no unresolved inline threads or actionable review finding remain. This is a COMMENT review, not self-approval.