/**
 * Unified approval/decision audit log — one book for every gate decision:
 * hook denies, permission prompts, and trade-plan verdicts. Append-only
 * JSONL at ~/.blockrun/approvals.jsonl so `franklin panel` and post-hoc
 * forensics read a single stream instead of three.
 */
export interface ApprovalRecord {
    ts: number;
    sessionId: string;
    /** What kind of gate produced this record. */
    kind: 'hook' | 'permission' | 'trade-plan';
    /** What was being decided — tool name, plan id, hook source. */
    subject: string;
    decision: 'allow' | 'deny' | 'approve' | 'reject' | 'expire' | 'cancel';
    /** Who decided: 'hook:<file>', 'user:tui', 'user:panel', 'policy', 'flag'. */
    by: string;
    reason?: string;
}
export declare function approvalsLogPath(): string;
export declare function appendApprovalRecord(record: ApprovalRecord): void;