## Type

- [ ] Feature (`feature/*`)
- [ ] Bug fix (`fix/*`)
- [ ] Hotfix (`hotfix/*`)
- [ ] Documentation
- [ ] Refactoring
- [ ] CI/CD
- [ ] Other: ___

## Summary

<!-- 1-3 sentences: what changed and why -->

## Related issues

<!-- Closes #123, Fixes #456 -->

## Checklist

- [ ] Branch follows naming convention (`feature/`, `fix/`, `hotfix/`)
- [ ] Commits follow [Conventional Commits](docs/git-workflow/commit-conventions.md)
- [ ] Tests added/updated for the change
- [ ] All tests pass (`pytest tests/ -v` + `npm run test:run`)
- [ ] Linting passes (`ruff check .` + `npx eslint src/`)
- [ ] `CHANGELOG.md` updated under `[Unreleased]`
- [ ] Documentation updated if behavior changed
- [ ] No secrets or credentials committed

## Screenshots / Evidence

<!-- If UI change: before/after screenshots. If API change: curl example or test output. -->