Show Duo Self-Hosted page to Dedicated

Description

There are currently checks in place to gate Duo Self-Hosted for Dedicated:

• https://gitlab.com/gitlab-org/gitlab/-/blob/master/ee/app/presenters/admin/ai_configuration_presenter.rb#L59
• https://gitlab.com/gitlab-org/gitlab/-/blob/master/ee/app/presenters/admin/ai_presenter.rb#L118
• https://gitlab.com/gitlab-org/gitlab/-/blob/master/ee/app/policies/ee/global_policy.rb#L112

In order for Dedicated instances to configure GitLab managed models for GitLab Duo features (instance-level model selection), they will need access to the Duo Self-Hosted UI (i.e. the new unified Model Configuration UI)

Implementation Plan

• Update logic in ai_presenter to ensure the model configuration card is rendered for Dedicated instances.
• Update logic in self_hosted_controller to ensure the instance-level model selection page is accessible for Dedicated instances.
• Update GQL query resolver and mutation to ensure that Dedicated instances can view and select GitLab managed models but not self-hosted models.

Definition of Done

• Instance owners on GItLab Dedicated can access the Model Configuration page (unified with the GitLab Duo Self-Hosted page)
• Instance owners on GItLab Dedicated can set their preferred models via nstance > Settings > GitLab Duo > Model Selection