## What

Brief description of the change.

## Why

What problem does this solve or what behavior does it add?

## How

Key implementation details — what approach was taken and why.

## Testing

- [ ] All checks pass (`task check`)
- [ ] New BDD tests added, fully specifying the new behavior
- [ ] Existing tests unmodified (or explain why changes were needed)
- [ ] Coverage maintained at target level

## Notes

Anything reviewers should pay attention to.
