/**
 * Workflow Step Repository Port
 *
 * Persistence interface for workflow steps executed inside an
 * interactive session. Implementations are the single source of
 * truth for the lifecycle of each step — pending → running → done/
 * failed/interrupted — and the orchestrator MUST write status
 * transitions synchronously around the agent invocation so that a
 * crash or refresh at any instant observes a consistent picture.
 */
export {};
