pub async fn start(
addr: &str,
store: Arc<dyn TracingStore>,
event_bus: EventBus,
static_dir: Option<&str>,
) -> Result<(), Box<dyn Error>>Expand description
Start the tracing web server on the given address.
static_dir is the path to the built frontend assets (e.g., “crates/langgraph-tracing/frontend/dist”).
If the directory doesn’t exist, only the API and WebSocket endpoints will be available.