Replace status/issues.md and status/milestones.md with the Gitea forge tracker, add issue templates, and archive pre-forge issues as YAML.
Write the eight domain-model cards under `docs/models/`, mark M10 10i Done, and update the design docs to v16. Also records Doc 44, which ratifies Decisions 129-133 as amended, and the Doc-39 conformance check that satisfied its gate.