* `python -m cli.contributing.requirements.archive` moves the H1 of
every fully-checked `docs/requirements/NNN-*.md` into the
`## Archive` block of the directory README and deletes the file.
Files with any remaining `- [ ]` are skipped. Split SRP-wise into
discovery / inspect / readme / __main__.
* New lint `test_requirements_completeness` warns per unchecked
acceptance criterion (GitHub annotation) and fails when any
requirement is ready for archival, pointing at the CLI. Keeps the
requirements directory small so AI agents process less context.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>