sdd-changelisted

<!-- Generated by Agent Profile Compiler. Do not edit by hand. --> # SDD Change ## Instructions 1. Read the relevant spec in `docs/specs/`. 2. Confirm the problem, goal, non-goals, contracts, security rules, acceptance criteria, tests, documentation updates, and final checklist. 3. Do not implement behavior outside the approved spec. 4. Add or update focused tests where practical before changing behavior. 5. Run relevant tests and golden tests before final review. 6. Report any missing spec, Draft spec, test gap, or contract risk before proceeding. ## Safety - Do not upload source code. - Do not read or print secrets. - Ask before mutating files, running shell commands, installing dependencies, or using external network access. - Keep production access denied.