/** Internal-only metadata persisted when a deadlock causes a stance shift. */
export interface DeadlockShiftRecord {
    reason: "consecutive_non_convergent";
    consecutiveNonConvergent: number;
    threshold: number;
    /** Zero-based session turn index at which the shifted draft happened. */
    shiftedAtTurn: number;
    seat: "initiator" | "counterparty";
    detectedAt: string;
}