assize-shell: the umpire's card, the read strip and the way to go again
DuelHud becomes the whole shell around the fight: a compacted umpire's card
carrying the call, the boundary and the score; a read strip that names each
fencer's commitment the moment its wind-up starts and flags an open riposte;
and a measure gauge whose zones are computed live from Duel.ACTIONS. The
assize card carries the writ, the roster of three neighbours (which is the
difficulty choice) and the verdict, so a finished match is no longer a dead
end. The scene entrypoint attaches GardenDressing and DuelFx to the director
and keeps looking until both are on.