refactor(ui): заменить Badge и Alert на ReUI semantic

Перевести AppBadge/AppAlert и потребители на @/components/reui; EmptyState — IconStack в духе empty-state-12.

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

apps/web/src/components/app-alert.tsx

@@ -1,5 +1,10 @@
 import type { ComponentProps } from 'react'
-import { Alert, AlertAction, AlertDescription, AlertTitle } from '@cfdm/ui/components/alert'
+import {
+  Alert,
+  AlertAction,
+  AlertDescription,
+  AlertTitle,
+} from '@/components/reui/alert'
 import { cn } from '@cfdm/ui/lib/utils'
 
 export type AppAlertProps = ComponentProps<typeof Alert>
@@ -7,6 +12,7 @@ export type AppAlertTitleProps = ComponentProps<typeof AlertTitle>
 export type AppAlertDescriptionProps = ComponentProps<typeof AlertDescription>
 export type AppAlertActionProps = ComponentProps<typeof AlertAction>
 
+/** Thin alias over ReUI Alert — prefer importing from `@/components/reui/alert` in new code. */
 export function AppAlert({ className, ...props }: AppAlertProps) {
   return <Alert className={cn(className)} {...props} />
 }