feat(web): NavUser chrome и унификация ReUI PRO kit

Тема в NavUser вместо ModeToggle в header; KpiStatGrid/QuickActionGrid по эталону EvoBGP; обновлены rules и contract.

Co-authored-by: Cursor <[email protected]>

apps/web/src/components/layout/site-header.tsx

@@ -11,7 +11,6 @@ import {
 import { Separator } from '@evofw/ui/components/separator'
 import { SystemMonitorPopover } from '@/components/layout/system-monitor-popover'
 import { AppsMenu } from '@/components/layout/apps-menu'
-import { ModeToggle } from '@/components/mode-toggle'
 import { SidebarTrigger } from '@evofw/ui/components/sidebar'
 
 export interface RouteBreadcrumbLoaderData {
@@ -71,7 +70,7 @@ function useDynamicBreadcrumbLabels() {
   }, [matches])
 }
 
-/** Header chrome — AppsMenu + SystemMonitor + ModeToggle (EvoBGP etalon). */
+/** Header chrome — AppsMenu + SystemMonitor; theme in NavUser. */
 export function SiteHeader() {
   const pathname = useRouterState({ select: (s) => s.location.pathname })
   const dynamicLabels = useDynamicBreadcrumbLabels()
@@ -114,7 +113,6 @@ export function SiteHeader() {
       <div className="ml-auto flex items-center gap-2">
         <AppsMenu />
         <SystemMonitorPopover />
-        <ModeToggle />
       </div>
     </header>
   )