User should registered using endpoint https://github.com/gen-mind/ibv-docs/blob/main/IBV.Auth/Authenticating-using-local-accounts.md#user-registration

After complete registration UI should send a request api/tenant/registration . user and tenant data will send in Authentication token that receive from Auth service.
Backend should check if the tenant already exists.
Backend should prepare database tables for work.
add tenant
add user
add predefined persona for tenant
add embedded models for tenant
configure api key ( at least add openAI api key )

Question:
Need to clarify use case when tenant already registered
will the frontend communicate with Auth service directly ?
whether the admin should invite new users.
or backend must configure the user at first login