* Added member reference type model.
* Updated client-side types and sdk.
* Render member relations on the member info view.
* Add relation type for related member with migration.
* Extend tests for track relations to include member relations.
* Extend tests for relation repository.
* Extend tests for relation service.
* Addressed comments from Copilot review.
* Add relation notification to member deletion.
* Removed unused import.
* Updates from code review.
* make ref element globally available
* align naming
* use new reference list
* add interfaces for config
* export const
* Fixed failing integration tests.
* apply interface
* deprecate interface with wrong name
* fix import
* disable unpublish button when item or descendants are referenced
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Co-authored-by: Andy Butland <abutland73@gmail.com>