Development record

.abcd/development/decisions/adrs/README.md:33 says every ADR-id reader admits both vintages 'through one derivation', naming the record_schema and citation-currency gates, the site index and the lifeboat; 24-decide.md:142-154 and the code show four derivations (internal/core/lint/schema.go:86, internal/core/site with no recordid import, internal/core/lifeboat/graveyard_abandoned.go:435-441). The brief calls consolidating them 'open work', and no ledger record holds it.