/**
 * Lightweight progress reporter used in non-verbose mode.
 *
 * Displays a single progress bar while files are being processed.
 * Call `finish()` to stop the bar and retrieve the sorted list of
 * destination folders, which the caller can then log via pino.
 */
export declare class ProgressReporter {
    private bar;
    private destDirs;
    constructor();
    /**
     * Start the progress bar with a known total.
     */
    start(total: number): void;
    /**
     * Increment the progress bar by one and record the destination directory.
     */
    tick(destDir: string): void;
    /**
     * Stop the progress bar and return the sorted list of destination folders.
     */
    finish(): string[];
}