/**
 * Merge raw STT error timestamps into contiguous outage windows. Selecting
 * chunks by "does an error timestamp fall inside the chunk" loses everything
 * said during a backoff sleep — the regression that ate "Hey Koi, what did I
 * do today?" (errors at 01:54:05 and 01:59:36, the question at 01:55:40).
 */
export declare function outageWindows(errorTimestamps: number[]): Array<{
    start: number;
    end: number;
}>;
export declare function startAudioRecovery(): {
    stop: () => void;
};