Add healthlog/spacing-scale (error): pt-*/pb-* on CardHeader/CardContent
fights the gap-based Card contract — the header→body distance comes from
the parent flex gap, so slot padding stacks on top of it or is a no-op.
This is the drift class the earlier slot-padding sweep cleaned; the rule
keeps it from reaccumulating. Density belongs on the Card itself
(gap-2 py-3 md:py-4). No allowlist — an exception, should one ever be
load-bearing, carries an inline disable with its reason.
Remove the two stragglers the rule caught: pb-1 on the device-score tile
and pb-4 md:pb-6 on the intake history list, both stacking dead padding
on top of the card gap. RuleTester coverage for the modifier-prefixed,
arbitrary-value, cn()/ternary/template and member-expression forms.
Marc-André Bombeck
68b4dd08a7