Add a transport-neutral runa-server dispatcher that validates protocol requests, routes supported operations through runa-image-api, and converts actor snapshots, behavior revisions, events, and failures into wire DTOs. Document that event retrieval drains the in-memory queue and that network transport and authentication remain future work.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
