curl --request POST \
  --url http://localhost:3000/v1/rfc-picks/{id}/items/{itemId}/scan \
  --header 'Content-Type: application/json' \
  --data '
{
  "barcode": 12345678901
}
'

{
  "success": true,
  "item": null,
  "message": "<string>",
  "error": "<string>",
  "expected": "<string>",
  "scanned": "<string>"
}