## Summary

- What changed?
- Why is this needed?

## Validation

- [ ] Applicable checks selected from `.trellis/spec/testing/index.md`; exclusions explained
- [ ] Backend tests passed when backend behavior changed
- [ ] Frontend typecheck/build passed when frontend files changed
- [ ] OpenAPI SDK regenerated or checked when API contracts changed
- [ ] Smoke test run when relevant

Commands run:

```bash
# paste commands here
```

## Risk

- User-facing impact:
- Deployment or migration impact:
- Rollback approach:

## Notes

- Related issue:
- Follow-up work:
- Docs or operator runbooks updated when behavior changed: