Make hacker cursor trails visible on all desktop deck pages.

Remove Command-Deck-only gating, boost 0/1 particle intensity, add crosshair cursor, and relabel the settings toggle so operators can find the effect.

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

@@ -348,10 +348,10 @@ export default function Layout({ children }: LayoutProps) {
 
   return (
     <div
-      className={`layout${isMobile ? ' layout--mobile' : ''}${othersOnline ? ' layout--comrades-online' : ''}`}
+      className={`layout${isMobile ? ' layout--mobile' : ''}${othersOnline ? ' layout--comrades-online' : ''}${!isMobile && glowParticles ? ' layout--hacker-cursor' : ''}`}
       data-operator-deck={operatorDeckId(location.pathname)}
     >
-      {!isMobile && glowParticles && showDeckEffects && <CursorFire />}
+      {!isMobile && glowParticles && <CursorFire />}
       <AmbientBackground weather={pageWeather} />
       {glowParticles && <SacredGeometryLayer />}
       <nav className="sidebar sidebar--desktop desktop-only">