social.colibri.beta.community.migrate

Starts moving a repo-backed community onto spaces and returns once the move is queued. Structure, roles, members and bans are recreated in spaces stamped with migratedFrom. Message history of current members is copied from their public repos and served alongside as read-only legacy messages. The move runs in the background and reports progress through social.colibri.beta.sync.defs#communityProgressEvent. Calling it again while it runs returns the current state, and calling it after a failed attempt resumes from the last finished step.