fyi.opensocial.createAppPassword

Make an app password for the group: what an app that signs in with a handle and a password, such as the Bluesky app, signs in to the group with (com.atproto.server.createSession). It stays the caller's: it stops working once they could no longer make it, and its sessions are listed as theirs among the group's connected apps. Its sessions may use the group's public repo, its blobs and other services, never its spaces, nor get service tokens for the account's own methods or this host's. Requires a role that may write every collection as the group.