Function start_turbopack_trace_server_handle 

pub fn start_turbopack_trace_server_handle(
    path: String,
    port: Option<u16>,
) -> TraceServerHandle

Starts the turbopack trace server on a background thread and returns a handle immediately (non-blocking). The WebSocket server will be available at ws://127.0.0.1:<port> (default port 5747).