Replace Actions with terraform_data

Tie an imperative publish action to a meaningful infrastructure change.

A intermediate Linux challenge worth 10 points. Solve it hands-on in a real Linux environment in your browser - no local setup, no fake shells.

The Challenge

The bucket moved to lab-west but terraform_data.publish has a static trigger. Set triggers_replace to the bucket region, apply so published-region.txt updates, and reach a clean plan.