fix(web): unify ReUI chrome and stop tab underline overlap

Секции страниц переведены на segmented Tabs (c-tabs-9), статус грида — ToggleGroup в toolbar. Убраны календарь задач, пустые вкладки мониторинга и demo-деревья ReUI. KPI overflow как в CFDM, DetailPanel на карточке модуля, один FrameSection.

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

apps/web/src/components/loading-button.tsx

@@ -1,18 +1,17 @@
 import { Button } from '@evobgp/ui/components/button'
-import { Loader2Icon } from 'lucide-react'
-import type { ButtonHTMLAttributes, ReactNode } from 'react'
+import { Spinner } from '@evobgp/ui/components/spinner'
+import type { ComponentProps, ReactNode } from 'react'
 
-type LoadingButtonProps = ButtonHTMLAttributes<HTMLButtonElement> & {
+type LoadingButtonProps = ComponentProps<typeof Button> & {
   loading?: boolean
-  variant?: 'default' | 'outline' | 'secondary' | 'ghost' | 'destructive' | 'link'
-  size?: 'default' | 'xs' | 'sm' | 'lg' | 'icon' | 'icon-xs' | 'icon-sm' | 'icon-lg'
   children: ReactNode
 }
 
+/** SoT for async actions — Button + Spinner. */
 export function LoadingButton({ loading, disabled, children, ...props }: LoadingButtonProps) {
   return (
     <Button disabled={disabled || loading} {...props}>
-      {loading ? <Loader2Icon className="animate-spin" data-icon="inline-start" /> : null}
+      {loading ? <Spinner data-icon="inline-start" /> : null}
       {children}
     </Button>
   )