Publish harness and TUI open-source

initial sync from the monorepo

crates/common/xai-tracing/src/tokio.rs

@@ -0,0 +1,22 @@
+use std::future::Future;
+use tokio::task::JoinHandle;
+use tracing::{Instrument, Span};
+
+/// Utility macro for propagating the current tracing context to a newly spawned task.
+///
+/// Note: The spawned task will be associated with the currently active span. To create a *new*
+/// span for the spawned task, manually instrument the future using [tracing::Instrument] instead of
+/// using this macro. For example:
+///
+/// use tracing::{info_span, Instrument};
+///
+/// let fut = tokio::spawn(async move {
+///     print!("do stuff")
+/// }.instrument(info_span!("spawned task")));
+pub fn spawn_traced<F>(future: F) -> JoinHandle<F::Output>
+where
+    F: Future + Send + 'static,
+    F::Output: Send + 'static,
+{
+    tokio::spawn(future.instrument(Span::current()))
+}