Function create_resilient_model_provider_from_ref 

pub fn create_resilient_model_provider_from_ref(
    config: &Config,
    name: &str,
    api_key: Option<&str>,
    api_url: Option<&str>,
    reliability: &ReliabilityConfig,
    options: &ModelProviderRuntimeOptions,
) -> Result<Box<dyn ModelProvider>, Error>

Build a resilient model provider from a name that may be either a bare family ("openai") or a dotted alias ("openai.work"). Dotted names dispatch through the typed alias factory so endpoint URI, family extras, and per-alias credentials from [model_providers.<family>.<alias>] are honored; bare names route through the family factory directly.