evals.yml, evals-periodic.yml, and ci-image.yml each compute the CI
image tag from hashFiles('.github/docker/Dockerfile.ci', 'bun.lock',
'patches/**') — synced by comment only (TODOS.md 'CI three-way
image-tag drift'). If one input list drifts, that workflow computes a
different tag for the same content: eval lanes silently rebuild the
image every run, or ci-image prebuilds a tag nobody looks up. The test
extracts each tag-computation site and fails on any mismatch.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
