This endpoint triggers exploration of test cases from a test plan against a specific URL (e.g., PR deployment).
It finds the newest matching test plan for the given context, then starts discovery for each test case in the plan.
The URL where the PR deployment is running
"https://preview-123.example.com"
Unique identifier for the test target
"2e2bb27b-a19c-47ce-a9b6-cd1bd31622dc"
The environment name to use for exploration
"staging"