The golden snapshots of the environment-variable cases lived under
config_snapshot_goldens/env/, which the repository .gitignore entry "env"
ignores, so they were never committed and the five cases would fail in CI
with a missing golden file. The case category is renamed environment, and its
golden files, generated from the previous commit, are added.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012M91wnVFmPEvJ9h39r5BH7