feat: add shadcn admin workspace

admin/src/components/ui/separator.tsx

@@ -0,0 +1,28 @@
+import * as React from 'react'
+
+import { cn } from '@/lib/utils'
+
+function Separator({
+  className,
+  orientation = 'horizontal',
+  decorative = true,
+  ...props
+}: React.HTMLAttributes<HTMLDivElement> & {
+  orientation?: 'horizontal' | 'vertical'
+  decorative?: boolean
+}) {
+  return (
+    <div
+      aria-hidden={decorative}
+      data-orientation={orientation}
+      className={cn(
+        'shrink-0 bg-border/80',
+        orientation === 'horizontal' ? 'h-px w-full' : 'h-full w-px',
+        className,
+      )}
+      {...props}
+    />
+  )
+}
+
+export { Separator }