[feature]: Capability in god-mode / envfile to have options to disable/limit the creation of new workspace in self-hosted

Is there an existing issue for this?

• I have searched the existing issues

Summary

A option in environment variable where e.g.

DISABLE_WORKSPACE_CREATION="1"

or in god-mode where a toggle to disable creation of workspace / limit who can create workspace (optional)

Why should this be worked on?

Prevent outside user which given guest permission from workspace to create inbox issue suggestion to create workspace which consume unnecessary and unauthorised resource for the self-hosted instance

Current workaround

Use some service access control product to limit the access to certain path, but not a perfect solution since the one I used can only block the UI access but not the API request which would block the normal request as well