Add NEXT_PUBLIC_SUBMITTER_VIEW_ALL_ENABLED=true to the staging env so
submitters (TECHNICAL/MANNING) can read all POs and open the History page
on the staging instance for testing ahead of a prod rollout. The flag is
written into the freshly-provisioned .env heredoc and also appended
idempotently to already-provisioned staging .envs on the next refresh.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
