B-T2DB-definition-entity-for-glossary
Status: promoted/decision
Create a definition entity type (schema + template + ops under
plugin/lib/model/entities/definition/) so glossary terms become first-class entities, then migrate
docs/planning/glossary.md into per-term instances. Deferred from PR #218, which created the interim
docs/planning/glossary.md. See glossary and D-0007-deterministic-op-substrate.
Promoted: D-B4CA-term-entity-and-generated-glossary (type renamed definition → term). The
migration landed — terms live under docs/planning/terms/, and docs/glossary.md is generated from
them.