Verification result: only deploy/compose/.env.example was ever tracked
(full-history check), zero hits for obvious secret patterns across all
added lines in history — recorded on issue #231 (residual-risk list).
The new CI step in the checks job fails if any .env other than
.env.example is tracked or a tracked file matches an obvious secret
pattern (private key blocks, AWS/GitHub/GitLab/Slack token shapes).
.env.example already documents every variable the compose files
reference (verified: comm of compose ${VAR} refs vs example keys is
empty). README states the example as the authoritative reference.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0168Ph5uBmHm8X28CSVpbpnJ