Replaces gpt-5-mini-2025-08-07 as the default judge everywhere: the 147
eval configs plus the hardcoded defaults in the evals CLI, recipe composer,
comparison config generator, taubench user-simulator, trial runner and
OptimizeConfig.
Haiku is roughly 3x faster on the judging path and we are out of OpenAI
quota, so gpt-5-mini was failing closed on long eval runs.