Fixed
- Render identical before/after image transitions once, retaining every affected file, Compose service, and Dockerfile stage.
- Keep transitions with different source or destination references separate and deduplicate repeated notices within a shared comparison.
Maintenance
- Configure Renovate for npm dependencies and GitHub Actions.
- Document grouped comparisons and the trusted bundle-rebuild workflow for dependency PRs.
Verified with 40 passing tests, lint, a reproducible bundle build, and a live comparison of the exact image digests from PlatformAPI #449. Docker Hub rate-limited the workstation; the live metadata check used Google's Docker Hub cache without changing production registry behavior.
CI: https://github.com/TechnicPack/docker-image-diff/actions/runs/35394439771