Cost Center, Org Unit and Workplace APIs are Generally Available

The beta flag has been removed from the following endpoints, which are now generally available:

• GET /v2/cost-centers
• GET /v2/workplaces
• GET /v2/org-units and GET /v2/org-units/{id}

As a result:

• These endpoints no longer require the Beta request header.
• The endpoints are considered stable and ready for production use.
  No other functional changes were made — filtering, sorting, and pagination behavior remain the same as before.