What you'll build: Transform the CLI tool into a daemon with protocol abstraction, worker pools, job queue, state management, REST API, and structured logging.

What you'll learn: Daemon architecture, async_trait for protocol abstraction, Arc<RwLock<_>> for shared state, Axum for REST APIs, tracing for observability, production error handling with thiserror.

End state: Tasks 9, 10, 11, 16, 17, and 22 completed. The daemon is running with a protocol registry, and the CLI becomes a thin client talking to the daemon via REST API. All future protocols plug into this architecture.