Function spawn_accept_http 

pub fn spawn_accept_http(
    listener: TcpListener,
    acceptor: Arc<HttpAcceptor>,
    handler: Arc<dyn Handler>,
    auth: Arc<dyn HttpAuth>,
    subs: SubRegistry,
    conn_counter: Arc<AtomicU64>,
    write_timeout: Duration,
) -> Result<()>

Spawn the background accept thread: one blocking thread per connection, each serving HTTP/1.1 (+ SSE) against handler, with trust classified by auth. Peers that authenticate arrive in whatever PeerOrigin auth mints.