Function run 

pub async fn run(
    config: Config,
    agent_alias: &str,
    message: Option<String>,
    provider_override: Option<String>,
    model_override: Option<String>,
    temperature: Option<f64>,
    peripheral_overrides: Vec<String>,
    interactive: bool,
    session_state_file: Option<PathBuf>,
    allowed_tools: Option<Vec<String>>,
    overrides: AgentRunOverrides,
) -> Result<String, Error>