OptionalJudgeOptionalModelPins the model. Otherwise the choosing prompt's model bindings choose.
OptionalModelWhich prompt's bindings choose the model: the evaluator prompt (System, the default) or the judge.
OptionalTimeoutHow long to wait for the model, in milliseconds. A call that runs over fails.
One evaluator prompt call: the parent prompt, the judge composed into its
judgePromptslot, the template data both render, and the subject as its own user message.