- Use vars.CI_CANCEL_IN_PROGRESS in entry-push-latest.yml so cancellation
can be disabled per-repo without changing workflow code
- Move docs/contributing/tools/github/branch.md into branch/ subdirectory
as security.md; add configuration.md for CI repository variables and
README.md as directory index
- Fix all cross-references in SECURITY.md, pipeline.md, branch.md,
pull-request.md, workflow.md, and repository.md
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>