refactor: replace revenue and geofence pages with new hub management system

src/components/Sidebar.tsx

@@ -34,9 +34,8 @@ const adminNavItems = [
   { label: 'Fleet Management', href: '/admin/fleet', icon: Bike },
   { label: 'Damage & Maintenance', href: '/admin/maintenance', icon: Wrench },
   { label: 'Accounting', href: '/admin/accounting', icon: Calculator },
-  { label: 'Revenue', href: '/admin/revenue', icon: CreditCard },
+  { label: 'Hubs', href: '/admin/hub', icon: MapPin },
   { label: 'Reports', href: '/admin/reports', icon: BarChart3 },
-  { label: 'Geofences', href: '/admin/geofence', icon: MapPin },
 ];
 
 const bikerNavItems = [