Method fail_pending_relay

crates/openshell-server/src/supervisor_session.rs:325–333

(&self, channel_id: &str, error: String)

    }

    pub fn fail_pending_relay(&self, channel_id: &str, error: String) -> bool {
        let pending = self.pending_relays.lock().unwrap().remove(channel_id);
        if let Some(pending) = pending {
            let _ = pending.sender.send(Err(Status::unavailable(error)));
            true
        } else {
            false
        }
    }

    /// Claim a pending relay channel. Called by the `/relay/{channel_id}` HTTP handler
    /// when the supervisor's reverse CONNECT arrives.