Hi Julia,
You didn’t do anything wrong! Since we have you build the search experience inside a site that houses the Jobs Landing Pages, the search uses the old (pre-Summer '22 Release) Pages architecture. You can click “View Code Editor” on the right side of the page just like you did before. In my screenshot, you can see the repository ID you created.
You won’t have to add the domain in this challenge, but if you wanted to, you would click the “Select Domain” dropdown in the top left.
I understand this challenge is a bit confusing in how we structure the sites so we’ll look into how we can make it clearer. Let us know if you have any other questions or feedback!