Publish harness and TUI open-source

initial sync from the monorepo

crates/codegen/xai-grok-auth/src/lib.rs

@@ -0,0 +1,14 @@
+//! Auth dependency-inversion seam shared between `xai-file-utils`
+//! (the holder) and `xai-grok-shell` (the implementer). Keeps shell types
+//! out of data-collector's import graph while still letting refresh-aware
+//! token resolution drive HTTP requests.
+
+pub mod auth_provider;
+#[cfg(feature = "middleware")]
+pub mod retry_middleware;
+pub mod visibility;
+
+pub use auth_provider::{AuthCredentialProvider, CredentialSnapshot, StaticAuthCredentialProvider};
+#[cfg(feature = "middleware")]
+pub use retry_middleware::AuthRetryMiddleware;
+pub use visibility::HttpAuth;