Summary of the Pull Request
Run spelling checks on pull_request for both community forks and same-repository branches. Keep automatic PR comments limited to same-repository PRs.
Not yet tested on GitHub: the repository's spelling workflow is currently disabled.
Implementation and local checks
## Detailed Description of the Pull Request / Additional comments
Fork contributors find spelling errors and fixes in the failed check, not a bot comment.
## Validation Steps Performed
- `actionlint -ignore 'label "ubuntu-slim"' .github/workflows/spelling2.yml` β passed (existing runner label).
microsoft/powertoys