///|
/// Default models for each provider.
pub let default_anthropic_model : String = "claude-sonnet-4-20250514"
///|
pub let default_openai_model : String = "gpt-4o"
///|
pub let default_openrouter_model : String = "moonshotai/kimi-k2.5"
///|
pub let default_ollama_model : String = "qwen3:8b"