## Summary
## Type of change
- [ ] Bug fix
- [ ] New feature
- [ ] Documentation
- [ ] CI / release tooling
- [ ] Refactor (no behavior change)
## Checklist
- [ ] `cargo test` passes
- [ ] `cargo clippy -- -D warnings` passes
- [ ] `cargo fmt --check` passes
- [ ] README / docs updated (if user-facing)
- [ ] ADR added or updated (if architectural)
## How to test