Add a reusable loopback TCP client, server-owned counter bootstrap, and shared-image reconnect coverage. Preserve actor state and behavior revisions across client disconnects without retrying uncertain requests.
BREAKING CHANGE: the REPL no longer starts an embedded image. Start runa-server with --listen before connecting; use --connect to select a loopback endpoint.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Add runa-client for launching the JSON-lines server as a child process and exchanging bounded, correlated protocol requests. Validate response versions and request IDs, expose graceful shutdown, and test the client against the real server process. Clarify that VS Code is planned to use an authenticated network connection to the same live image, while stdio serves local child-process integrations and actors remain in the image.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Steve Biedermann