D1 thin dir+git with shard-wiki then kontextual upgrade path; D2 defer
asset-store; D3 NetKingdom authz consolidation; D4 outline explode/implode
and live-by-default includes with pin as exception.
Extend authoring model: generate alternative current version, keep or replace.
Unify with pinned transclusions/pipelines; document markitect-tool gap and
point at cross-repo proposal.
