[feature] Licence registration for EE edition

As an Administrator

I want to register the license when running the EE version on-premise

So that my company can use EE-related features.

Acceptance Criteria
TODO

Definition of Done
TODO

Technical details:
TODO

The issue names no files, tests, or entry points and leaves its acceptance criteria and technical details as TODO. Start by locating the EE and on-premise license-handling entry points, then clarify the registration flow and define tests that demonstrate a registered license enables EE features.

Written by the indexing model from the issue text.