Brummel
44e3a1a678
plan: 0059 generic portable sweep key + bool-param demo strategy
Decomposes spec 0059 into 5 tasks: (1) engine SweepBinder::varying_axes
accessor; (2) aura-std LongOnly bool-param node; (3) the portable member_key
renderer replacing sweep_member_key (+ sweep_family refactor + the SMA
sweep-trace assertion update); (4) the momentum strategy + --strategy selector
(+ the momentum integration test); (5) ledger amendment + full-suite/lint gate.
Each task is RED-first and builds green per task.
refs #105