Method from_optional_config

crates/opencode-agent/src/agent.rs:478–483

(config: Option<&LoadedConfig>)

    }

    pub fn from_optional_config(config: Option<&LoadedConfig>) -> Self {
        if let Some(config) = config {
            return Self::from_config(config);
        }
        Self::new()
    }

    pub fn from_project_dir(project_dir: impl AsRef<Path>) -> Self {
        match load_config(project_dir) {