* chore: move multi-org endpoints into enterprise directory
All multi-organization features are gated behind "premium" licenses. Enterprise licenses can no longer
access organization CRUD.
* Allow creating test audits with nil org
Not all audit entries have organization IDs, so this will allow us to
test those cases.
* Add organization details to audit log queries
* Add organization to audit log response
This replaces the old ID. This is a breaking change but organizations
were not being used before.
