BadgeSkeleton is the twin of Badge: the real Badge frame, as tall as an
interactive one (the settings values are buttons), with a placeholder for its
value. Permissions, resource caps, internet and allowed domains use it in place of
their "loading…" text, the details popover shows lines of text, and the
AGENTS.md editor a block, in place of theirs. SkeletonLines is a few stacked
lines for such blocks.
A new Skeleton (a shimmering shape, still where motion is off) and a region
that tells assistive tech once that something is loading. The agent card's
header is split into AgentCardLayout, a layout with a slot for each part: the
card fills the slots with the real icon, badges and controls, its new
AgentCardSkeleton twin fills the same slots with placeholder shapes, so the
card that replaces it lands in the same place. The agents page uses the twin in
place of its "loading…" text.
