Repository can be viewed as a special kind of Façade (structural) but also as a special kind of Factory (creational). Also, as the Repository often expose collection-like interface, then it might be a special application of Iterator (behavioral).
What I am trying to say is that neither those categories nor patterns themselves are any sort of definite doctrine. There are just some ideas and a language that tries to make them more explicitly visible. These categories are just helpers trying to express somehow what some patterns do. Also patterns are just various expressions of a generic loose coupling principles. Their borders are blurry.