Add small doc comment

Enhance a brief JSDoc in src/lib/utils.ts to verify minimal code change workflow with a harmless documentation update.

X-Lovable-Edit-ID: edt-5d4e06f4-a087-42e0-80bb-a43139fa066b

src/lib/utils.ts

@@ -7,6 +7,7 @@ import { twMerge } from "tailwind-merge";
  * 
  * @param inputs - Class values to combine (strings, objects, arrays)
  * @returns Merged class string with Tailwind conflicts resolved
+ * @example cn('px-2 py-1', 'px-4') // Returns 'py-1 px-4'
  */
 export function cn(...inputs: ClassValue[]) {
   return twMerge(clsx(inputs));