feat: beans on its own branch

[selfagency]

i'd like to propose beans having the option to be on its own branch of a repo. it gets tiresome after a while to deal with switching branches and pulling remotes and so on to sync up beans committed during the course of a workday. it would be preferable, imo, to have the beans in their own branch with its own filetree (like github pages does), and for the beans cli to only conduct business within that branch, so it always stays in sync across the project and the beans don't interfere with the git working copy.