pub fn anthropic_url(&mut self, url: String) {
        match self {
            Provider::Anthropic { url: set_url, .. } => {
                if url.ends_with("/") {
                    *set_url = Url::parse(&url).unwrap();
                } else {
                    *set_url = Url::parse(&format!("{url}/")).unwrap();
                }
            }
            Provider::OpenAI { .. } => {}
        }
    }
Sets the Anthropic URL if the provider is Anthropic
crates/forge_domain/src/provider.rs