## Summary

Describe what this PR changes and why.

## Type of Change

- [ ] Bug fix
- [ ] New feature
- [ ] Refactor
- [ ] Documentation
- [ ] Test-only
- [ ] Chore

## Validation

- [ ] `python -m compileall memory tests`
- [ ] `pytest -q tests/test_profile_field_contract.py tests/test_temporal_goldens.py tests/test_ws_auth.py`
- [ ] Manual behavior check (if applicable)

## Risk Check

- [ ] No secrets were added
- [ ] Backward compatibility considered
- [ ] Failure paths/logs reviewed

## Related Issue

Issue: #

