feat: add shadcn admin workspace

admin/src/components/ui/button.tsx

@@ -0,0 +1,56 @@
+import * as React from 'react'
+import { Slot } from '@radix-ui/react-slot'
+import { cva, type VariantProps } from 'class-variance-authority'
+
+import { cn } from '@/lib/utils'
+
+const buttonVariants = cva(
+  'inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-lg text-sm font-medium transition-all disabled:pointer-events-none disabled:opacity-50 outline-none ring-offset-background focus-visible:ring-2 focus-visible:ring-ring/70 focus-visible:ring-offset-2 [&_svg]:pointer-events-none [&_svg]:size-4 [&_svg]:shrink-0',
+  {
+    variants: {
+      variant: {
+        default:
+          'bg-primary text-primary-foreground shadow-[0_12px_30px_rgb(37_99_235_/_0.22)] hover:bg-primary/90',
+        secondary: 'bg-secondary text-secondary-foreground hover:bg-secondary/80',
+        outline:
+          'border border-border bg-background/80 text-foreground hover:bg-accent hover:text-accent-foreground',
+        ghost: 'text-foreground hover:bg-accent hover:text-accent-foreground',
+        danger:
+          'bg-destructive text-destructive-foreground shadow-[0_12px_30px_rgb(220_38_38_/_0.18)] hover:bg-destructive/90',
+      },
+      size: {
+        default: 'h-10 px-4 py-2',
+        sm: 'h-9 rounded-md px-3',
+        lg: 'h-11 rounded-xl px-5',
+        icon: 'h-10 w-10',
+      },
+    },
+    defaultVariants: {
+      variant: 'default',
+      size: 'default',
+    },
+  },
+)
+
+export interface ButtonProps
+  extends React.ButtonHTMLAttributes<HTMLButtonElement>,
+    VariantProps<typeof buttonVariants> {
+  asChild?: boolean
+}
+
+const Button = React.forwardRef<HTMLButtonElement, ButtonProps>(
+  ({ className, variant, size, asChild = false, ...props }, ref) => {
+    const Comp = asChild ? Slot : 'button'
+
+    return (
+      <Comp
+        className={cn(buttonVariants({ variant, size, className }))}
+        ref={ref}
+        {...props}
+      />
+    )
+  },
+)
+Button.displayName = 'Button'
+
+export { Button, buttonVariants }