Soft-deletes a job. The job is flagged as deleted and no longer appears in list results. The underlying data is retained.
Only the job owner can delete a job. Returns 404 if the job is not
found or does not belong to the authenticated user.
Deleting an already-deleted job returns 200.
API key for authentication.
Unique job identifier returned from POST /catchAll/submit.
Job deleted successfully (or already deleted).