Changes to Get an overview of a project

the sessions response's property type changed from object to array for status 200

removed the optional property sessions/event_count from the response with the 200 status

added the optional property model_usage/items/date to the response with the 200 status

added the optional property sessions/thread_count to the response with the 200 status

the project/id response's property pattern ^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$ was added for the status 200