Clicking a service tag selects it (stops node drag), extends Selection
discriminant with {type:'service',id,nodeId}, and renders an inspector
panel showing proto/port/subnet/risk chip + REMOVE SERVICE button
(gated off for observed nodes and degraded topologies). Service-tag
styling now pulls `risk` from DEFAULT_SERVICES metadata instead of
node.status alone.
Canvas grew a deployed prop so nodes can visually distinguish "live in
docker" from "planned". ContextMenu learned nested submenus with
ChevronRight affordance; NetBox renders a ShieldAlert for DMZ LANs;
Palette got additional lucide icons. Dead PendingChange union pulled
out of types.ts — Phase-3 mutation ops are driven by the API layer now,
not a frontend type.
