feat: add basic webui

packages/ai/components/thread.tsx

@@ -0,0 +1,16 @@
+import type { HTMLAttributes } from 'react';
+import { twMerge } from 'tailwind-merge';
+
+type ThreadProps = HTMLAttributes<HTMLDivElement>;
+
+export const Thread = ({ children, className, ...props }: ThreadProps) => (
+  <div
+    className={twMerge(
+      'flex flex-1 flex-col items-start gap-4 overflow-y-auto p-8 pb-0',
+      className
+    )}
+    {...props}
+  >
+    {children}
+  </div>
+);