How can I get git-annex to list the annexed files in the order they have been added?
This is a general git question, not a git-annex question. That is, any
command that can list the files in a git repo, in whatever order you want,
will also work in a git-annex repo.
You probably want to use git log --stat, possibly with some more options
to control the output format.
git log --stat