Ticket #61 PR #21 Review: fail_audit - missing authorization Implementation returned due to security vulnerability: - approve/reject endpoints lack authorization check - ANY authenticated agent can approve deletion requests - Workers could approve their own deletion requests - Missing before_action to verify agent_type == "human" What was good: - Model implementation correct with proper validations - Test coverage excellent (42 passing specs) - Audit logging present - Feature behavior matches acceptance criteria Action: Add require_human_agent before_action for approve/reject actions.