fix(dev): one t3.json setup action that works on every OS (#13589)

Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
b3de243d5eTheo Browne committed on 9/25/2026, 6:56:35 AM· committed by GitHubparentd10bd13
4 files changedLine totals unavailable