Add TypeScript types for controllers

**Feature request**
It would be great to have import for auth.

**Use case**
Many users need this functionality for production deployments.

**Implementation idea**
Add a new config option `enable_import` with default `false`.

No file, test, or entry point is named. First clarify whether this issue is about TypeScript controller types or an auth-import configuration option, then identify the relevant configuration and controller entry points and define the expected behavior for enable_import=false and true.

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