Require explicit behavior selection on spawn, expose randomized actor references, and add named REPL bindings, completion, history navigation, and protocol v2 routing.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Add the runa-protocol crate with version-1 request, response, and event DTOs, serde serialization, and basic envelope and input validation. Document the wire contract and clarify that transport, dispatch, and authentication remain future work.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>