Add tiered LOTL mining onion and fleet recon so agents can fallback across execution tiers while operators see spread and vuln posture in Crucible. Includes triple-onion chain, spread cred graph, and full Go/TS/E2E test validation.

server/web/src/components/Layout/Layout.tsx

@@ -32,7 +32,6 @@ function operatorDeckId(pathname: string): string {
   if (path.startsWith('/forge') || path.startsWith('/builder')) return 'forge';
   if (path.startsWith('/crucible')) return 'crucible';
   if (path.startsWith('/emberwake') || path.startsWith('/spread')) return 'emberwake';
-  if (path.startsWith('/agents')) return 'fleet';
   if (path.startsWith('/builds')) return 'builds';
   if (path.startsWith('/settings')) return 'settings';
   if (path.startsWith('/pathtracer')) return 'pathtracer';
@@ -41,7 +40,6 @@ function operatorDeckId(pathname: string): string {
 
 const NAV = [
   { to: '/dashboard', label: 'Command Deck', icon: 'deck' },
-  { to: '/agents', label: 'Fleet Roster', icon: 'fleet' },
   { to: '/crucible', label: 'Crucible', icon: 'crucible' },
   { to: '/pathtracer', label: 'Path Tracer', icon: 'trace' },
   { to: '/forge', label: 'Forge', icon: 'forge' },
@@ -53,7 +51,7 @@ const NAV = [
 
 const DOCS_HREF = '/docs/';
 
-/** Primary tabs on mobile bottom bar — Deck, Fleet, Crucible, Path Tracer, Forge */
+/** Primary tabs on mobile bottom bar — Deck, Crucible, Path Tracer, Forge, Mission Deck */
 const MOBILE_PRIMARY = NAV.slice(0, 5);
 /** Mission Deck, Builds, Emberwake, Calibrate — “More” sheet */
 const MOBILE_MORE = NAV.slice(5);
@@ -257,7 +255,6 @@ export default function Layout({ children }: LayoutProps) {
   const moreActive = MOBILE_MORE.some((item) => location.pathname === item.to);
   const mobileShortLabel: Record<string, string> = {
     '/dashboard': 'Deck',
-    '/agents': 'Fleet',
     '/crucible': 'Ops',
     '/pathtracer': 'Tracer',
     '/forge': 'Forge',