B2B-88: add starter kit structure and elements

packages/ui/src/shadcn/checkbox.tsx

@@ -0,0 +1,29 @@
+'use client';
+
+import * as React from 'react';
+
+import * as CheckboxPrimitive from '@radix-ui/react-checkbox';
+import { CheckIcon } from '@radix-ui/react-icons';
+
+import { cn } from '../lib/utils';
+
+const Checkbox: React.FC<
+  React.ComponentPropsWithRef<typeof CheckboxPrimitive.Root>
+> = ({ className, ...props }) => (
+  <CheckboxPrimitive.Root
+    className={cn(
+      'peer border-primary focus-visible:ring-ring data-[state=checked]:bg-primary data-[state=checked]:text-primary-foreground h-4 w-4 shrink-0 rounded-xs border shadow-xs focus-visible:ring-1 focus-visible:outline-hidden disabled:cursor-not-allowed disabled:opacity-50',
+      className,
+    )}
+    {...props}
+  >
+    <CheckboxPrimitive.Indicator
+      className={cn('flex items-center justify-center text-current')}
+    >
+      <CheckIcon className="h-4 w-4" />
+    </CheckboxPrimitive.Indicator>
+  </CheckboxPrimitive.Root>
+);
+Checkbox.displayName = CheckboxPrimitive.Root.displayName;
+
+export { Checkbox };