Removed `is_billing_admin` user property as it is no longer used since
billing permissions are now determined by `can_manage_billing_group`
realm setting.
This adds a new special UserProfile flag can_change_user_emails(disabled
by default) and the ability for changing the email address of users in
the realm via update_user_backend. This is useful for allowing
organizations to update user emails without needing to set up a SCIM
integration, but since it gives the ability to hijack user accounts, it
needs to be behind this additional permission and can't be just given to
organization owners by default. Analogical to how the
create_user_backend endpoint works.
Adds a check for changing an existing guest user's role before
calling do_update_user in the case that a realm has a current
paid plan with manual license management.
Allowing any admins to create arbitrary users is not ideal because it
can lead to abuse issues. We should require something stronger that
requires the server operator's approval and thus we add a new
can_create_users permission.
We replace knight command with change_user_role command which
allows us to change role of a user to owner, admins, member and
guest. We can also give/revoke api_super_user permission using
this command.
Tweaked by tabbott to improve the logging output and update documentation.
Fixes#16586.
