import { DatabaseSync } from 'node:sqlite';
export declare const AUDIT_DB_PATH: string;
export interface PruneFilters {
    /** Delete runs whose started_at < (now - olderThanMs). Falsy = no age filter. */
    olderThanMs?: number;
    /** Delete runs whose status is in this set. Default: stopped, error, stale. */
    statuses?: Set<string>;
    /** For each automation_id, keep the N most recent runs regardless of other filters. */
    keepLastPerAutomation?: number;
    /** Delete every run that is not currently alive (overrides status/age). */
    all?: boolean;
}
export interface PruneOptions extends PruneFilters {
    dbPath?: string;
    dryRun?: boolean;
    vacuum?: boolean;
    /**
     * When true, skip the deletion phase and only update status of orphaned
     * 'running' rows whose pid is dead — used by `auto clean` to reconcile state
     * without losing history.
     */
    reconcileOnly?: boolean;
}
export interface PruneResult {
    reconciled: number;
    candidateRunIds: string[];
    deletedRows: Record<string, number>;
    freedBytes: number;
    dryRun: boolean;
}
/** Parse human-friendly durations like `7d`, `24h`, `30m`, `45s`. */
export declare function parseDuration(input: string): number;
/** Reconcile orphan-running rows in the DB (process dead → mark stopped). */
export declare function reconcileStaleRuns(db: DatabaseSync, opts?: {
    dryRun?: boolean;
    now?: number;
}): number;
export declare function prune(opts?: PruneOptions): PruneResult;
export declare function fmtBytes(n: number): string;
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