* ci(companion): add separate typecheck workflow to catch type errors
This adds a new companion-typecheck.yml workflow that runs TypeScript type
checking for the companion app. This would have caught the missing useEffect
import issue in PR #26931.
Changes:
- Add new companion-typecheck.yml workflow file
- Update pr.yml to call the new workflow when companion files change
- Add typecheck-companion to the required jobs list
Co-Authored-By: [email protected] <[email protected]>
* add lint checks
* test
* remove
* update typecheck
* address review
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Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>