What does Optimize Database do in 1Password Mac 7.1.2

@billj - that particular command has performed a rotating roster of tasks over the years, as the behind-the-scenes schema of the database itself (as well as other things) have changed. Currently, it works only for standalone vaults, and performs a few tasks: makes a backup, force-runs OPItemCleanupMigration. In its current state, there's not much reason to run it now, even if you have a strictly standalone setup, but we haven't removed it because it's possible there may be other uses for it in the future.