feat(frontend): add shadcn ui primitives and compatibility bridge

vite-frontend/src/components/ui/textarea.tsx

@@ -0,0 +1,18 @@
+import * as React from "react";
+
+import { cn } from "@/lib/utils";
+
+function Textarea({ className, ...props }: React.ComponentProps<"textarea">) {
+  return (
+    <textarea
+      className={cn(
+        "flex min-h-[84px] w-full rounded-md border border-input bg-background px-3 py-2 text-sm shadow-sm placeholder:text-default-400 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring disabled:cursor-not-allowed disabled:opacity-50",
+        className,
+      )}
+      data-slot="textarea"
+      {...props}
+    />
+  );
+}
+
+export { Textarea };