Add architecture/child-workplan-map_v0.1.md linking streams S1–S8 to local workplans (RMGR, HUB-0004, CORE-0010, STATE-0079, ACTIVITY-0029, OPS-0003, FIN-0002) with dependencies and project gates.
Add draft-reviewable hub-core and domain-extension contract (helixforge.hub-extension v0.1): role taxonomy, ports, manifests, conformance tiers, and migration stack map.
Add draft-reviewable information architecture (SHR-ARCH-IA-0001): eleven kinds, entity/relation catalog, cross-cutting rules, and inventory map.