Function models_from_config 

pub fn models_from_config(
    models: &HashMap<String, SopDecisionModelConfig>,
) -> HashMap<String, Arc<dyn DecisionModel>>

Build a client for every [decision_models.<alias>] entry with a known endpoint (provider defaults applied). An entry without one, or whose client cannot be built, is logged and left out, so SOPs selecting it dispatch fail-closed.