The registry move, seat definitions, declares, bus state and the knowledge base
ship as one milestone (ADR 0612, 0613), ordered by the module graph's edges
(ADR 0614), with the foundation parts' first view (ADR 0615) and the overview
page (ADR 0616). The designs said four deliveries, a seat-definition source
nobody serves, a checker naming mesh-config, and left the bus module's first
view, caller and deletion paths open; they now say what the milestone builds.
Adds the glossary words it uses, playbook 02's cites link for an abandoned
effort, and the hq-design-writer agent definition.
Claude-Session: https://claude.ai/code/session_01JG73KJNrH5EgFXMKKYSrig