feat(ext): draft extension structure (single-page mode)

packages/extension/src/components/ui/separator.tsx

@@ -0,0 +1,26 @@
+import * as SeparatorPrimitive from '@radix-ui/react-separator'
+import * as React from 'react'
+
+import { cn } from '@/lib/utils'
+
+function Separator({
+	className,
+	orientation = 'horizontal',
+	decorative = true,
+	...props
+}: React.ComponentProps<typeof SeparatorPrimitive.Root>) {
+	return (
+		<SeparatorPrimitive.Root
+			data-slot="separator"
+			decorative={decorative}
+			orientation={orientation}
+			className={cn(
+				'bg-border shrink-0 data-[orientation=horizontal]:h-px data-[orientation=horizontal]:w-full data-[orientation=vertical]:h-full data-[orientation=vertical]:w-px',
+				className
+			)}
+			{...props}
+		/>
+	)
+}
+
+export { Separator }