feat(identity): enforce recent-authentication policy for data rights

[seonghobae]

Intent

Advance the remaining #55 data-rights gap from the protected-main authentication-age primitive merged in #134. This slice adds a fail-closed recent-authentication policy that future data-rights HTTP/gateway entrypoints can enforce without treating session rotation as a new authentication event.

TDD evidence

RED — d3f6d19feea8c7b7d578334358b46e36bf997fc1

The test-only head added data-rights-recent-auth.test.ts. Fresh CI reached the identity suite and failed all three new tests for exactly one reason: requireRecentAuthentication was absent (expected 'undefined' to be 'function'). Existing identity tests continued to pass; this established the intended missing policy rather than a setup/import failure.

GREEN — a0f7a7314dfdb6a3fe7ed048dc9c09f976b71536

The minimum implementation in oauth-http-boundary.ts now:

• accepts authentication provenance at the exact maximum-age boundary;
• rejects an older authentication event even when the session may still be valid;
• rejects future, malformed, or non-canonical authentication provenance;
• rejects invalid clocks and invalid/non-positive recent-auth policy windows;
• returns only the canonical authentication instant and handles no bearer credential or workspace identifier.

Fresh exact-head evidence on a0f7a7314dfdb6a3fe7ed048dc9c09f976b71536:

• CI: success (format, deployment-source checks, lint, typecheck, tests, build, Compose)
• Compose runtime: success
• AppGuardrail: success
• Semgrep: success
• Security Scan: success
• Commercial Readiness: success
• unresolved review threads: none at the pre-review transition

Standards rationale

The boundary is intentionally independent from session rotation. Current NIST SP 800-63B session guidance distinguishes session lifetime/activity from authentication or reauthentication time, and OWASP ASVS 5.0 V7.5.3 requires further authentication or secondary verification before highly sensitive operations. The exact data-rights policy window remains a deployment/product decision; this slice provides deterministic fail-closed enforcement semantics rather than inventing a universal timeout.

Scope / next work

This is a prerequisite, not completion of #55. Protected-main still needs the data-rights HTTP/gateway transaction itself, concrete domain contributors, durable request/receipt/reconciliation, protected export delivery/download audit, legal-hold/retention/backup-expiry behavior, and operator recovery.

Refs #55, #134, #21.

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Review details

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 32ffebb8-e4bb-41d1-9760-21da53e816b2

📥 Commits

Reviewing files that changed from the base of the PR and between edee782 and a0f7a73.

📒 Files selected for processing (2)

• apps/identity-service/src/data-rights-recent-auth.test.ts
• apps/identity-service/src/oauth-http-boundary.ts

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