Envelope pins protocolVersion "0" and carries the workspace-scoped
auth token; discriminated union on type covers hello/ready, clone,
install, scan, adapter-start, render-frame, status (stage + elapsed),
and error (named causes). All .strict() so the control plane, editor,
and runner cannot drift apart silently (ADR-027, PRD user story 7).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016j8z4VHjedXDTjEDNg7qHK
Hand-scaffolded from the packages/core-events shape: the core-package
turbo generator only covers its eight pre-curated snapshot names
(analytics, audit, consent, dsr, events, realtime, trpc, ui) and
rejects 'runner-protocol' at the name prompt. Flagged in the package
AGENTS.md as a future generator snapshot candidate.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016j8z4VHjedXDTjEDNg7qHK
