Function extract_origin

crates/openshell-cli/src/auth.rs:216–222

Extract the origin (scheme + host) from a gateway endpoint URL. For example, `https://8080-3vdegyusg.brevlab.com/some/path` → `https://8080-3vdegyusg.brevlab.com`. Returns `None` if the URL cannot be parsed.

(gateway_endpoint: &str)

/// For example, `https://8080-3vdegyusg.brevlab.com/some/path` → `https://8080-3vdegyusg.brevlab.com`.
/// Returns `None` if the URL cannot be parsed.
fn extract_origin(gateway_endpoint: &str) -> Option<String> {
    // Split on "://" to get scheme and the rest.
    let (scheme, rest) = gateway_endpoint.split_once("://")?;
    // The host (with optional port) is everything before the first '/'.
    let host = rest.split('/').next().unwrap_or(rest);
    Some(format!("{scheme}://{host}"))
}

#[derive(Deserialize)]
struct CallbackPayload {