- scripts/port.sh ports a change made under versions/<from>/src to the
other versions with `git apply --3way`: clean where files match,
normal conflicts only where a version really differs. Supports
uncommitted changes or --commit, --to, --dry-run, and detects changes
already applied.
- .gitea/workflows/check.yml compiles every version on pull requests and
pushes to master (--continue reports all failing versions).
- VERSION_GUIDE.md documents the layout, porting, and adding a version.
Closes#17, closes#18
Co-Authored-By: Claude Opus 5.5 <[email protected]>
