Ref T4749. Ref T3265. Ref T4909. Several goals here:
- Move user destruction to the CLI to limit the power of rogue admins.
- Start consolidating all "destroy named object" scripts into a single UI, to make it easier to know how to destroy things.
- Structure object destruction so we can do a better and more automatic job of cleaning up transactions, edges, search indexes, etc.
- Log when we destroy objects so there's a record if data goes missing.