Brummel
226bf57130
Cycle 0080 was a 44-line behaviour-preserving re-export relocation along the exact engine↔domain seam the 0079 architect review just blessed, so the drift review is carried from 0079 rather than re-dispatched; the only drift introduced is the ledger note, synced here. Regression gate green and unchanged: full suite 665/0 (incl. the C18 goldens), clippy --workspace --all-targets -D warnings clean. Ledger sync (docs/design/INDEX.md): added a cycle-0080 realization note — FamilySelection/SelectionMode are now in aura-analysis (engine-side extraction complete); recorded the user-ratified decision that the aura-registry Metric/metric_cmp/deflation vocabulary stays in the registry by design (it is the trading selection layer, its deflation statistics branch irreducibly on metric identity, and genericity would be a one-implementor abstraction); and that making RunReport generic / a domain-agnostic orchestration substrate is deferred to the World/C21 layer, explicitly out of #136. No baseline moved (the suite is the regression gate; green-unchanged), so no ratify statement. No spec/plan ephemera to drop.