mosaic org delete ID --confirm ID --if-revision N, and POST /api/orgs/:id/delete,
mark the organization as deleting, stop its bus, move its files into
<dataRoot>/deleted/<ID>-<stamp>/ with a receipt, then drop it from the registry
and append deleted.log. A failure stops at its step and a rerun resumes. Bus
start refuses an organization that is being deleted. The settings page asks
twice: a panel that lists the effects, then typing the ID before Delete
permanently is enabled. Purge and remote revocation are follow-ups.
jason.woltje