feat(ui): schema-driven ServiceConfigForm in Fleet & MazeNET inspectors

ServiceConfigForm.tsx fetches /topologies/services/{slug}/schema and renders
typed inputs (string/password/int/bool/textarea/enum) with reveal toggles for
secrets. SAVE persists via PUT (no restart); APPLY persists + force-recreates
the service container after a confirm dialog (matches the forwards_l3 pattern).

Mounts:
- DeckyFleet DeckyCard: clicking a service tag toggles the form below the
  EXPOSED row, gated on liveServicesEnabled (admin + non-swarm).
- MazeNET Inspector: renders the form above REMOVE SERVICE when a service
  is selected on a non-observed decky.

UI test plan is manual — no jsdom test infra in decnet_web yet.

decnet_web/src/components/MazeNET/MazeNET.tsx

@@ -892,6 +892,7 @@ const MazeNET: React.FC = () => {
           nets={nets}
           nodes={nodes}
           edges={edges}
+          topologyId={topologyId || undefined}
           topologyStatus={topoStatus}
           onClose={() => setInspectorOpen(false)}
           onDeleteNet={removeNet}