//! Host controller ↔ worker (in-process local or NDJSON remote).
//!
//! ```text
//! host_controller.rs — HostController: in-process local OR lazy remote subprocess
//! host_worker.rs — HostWorker: tool registry + serve on AsyncRead/AsyncWrite
//! protocol.rs — Request / Response
//! ```
//!
//! Tool service implementations live in [`crate::tool_services`].
pub use ;
pub use HostWorker;
pub use ;