As a user, I would like to have a REST API endpoint that allows me to create a Test Execution directly from a Test Plan, similar to the functionality available in the UI.

As a user, I would like a REST API function to create a Test Execution from a Test Plan in a single request, ensuring scalability for large Test Plans and aligning with the existing UI behavior.

To achieve this today, multiple API requests are required, which makes the process inefficient and difficult to scale for Test Plans with a large number of Test Cases.