import type { PersistedPendingApproval } from "./types.js";
/**
 * Append a detached approval record and retain a bounded history. The per-run
 * approval list is append-only: decisions rewrite records in place, so decided
 * approvals stay in the list and dominate its growth.
 *
 * Retention is state-aware because a live pending approval must never be
 * evicted: a run waiting on an evicted ID could never be decided or expired
 * and would wait forever. At the bound, the oldest decided record is evicted
 * first. An expired record remains pending until expiration reconciliation
 * decides it, and a decided record remains reserved until node reconciliation
 * finalizes it, so both are retained. When there are not enough finalized
 * records to make room, the append is rejected without changing existing
 * history instead of silently dropping a decidable approval.
 */
export declare function appendRetainedPendingApproval(approvals: PersistedPendingApproval[], approval: PersistedPendingApproval): void;
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