Lift <RoutingNodeCard> primitive from audit §21 / DESIGN §9.13. Migrate
the fleet adapter to consume it: collapse five inline state pills into
a single nodeState prop, replace the k/v stat list with a mono meta
line, drop the per-row HEALTHY chip in favor of a state dot, and add a
real empty-state block with a primary CTA for every state. Compact
density body swap stays inside the component, no -compact fork.
Replace the inline Select in the sidebar with a dedicated NodeSwitcher
component that always renders as an identity card, regardless of node
count. With two or more nodes it opens a Popover listing every node
with status dot, type, version, last-seen metadata, and an active-row
accent rail, matching the design language of the user menu and
notification panel.
Extract the relative-time formatters out of NodeManager into a shared
@/lib/relativeTime module with formatTimeUntil and formatTimeAgo, and
add a 'just now' / '<1m' branch so fresh heartbeats and imminent runs
read naturally.