/**
 * CLI progress reporting — animated spinner, step tracking.
 *
 * Drives Composer/Yarn-style step output with a live spinner
 * that cycles while a step is running, so the user always sees
 * movement and knows the CLI hasn't frozen.
 *
 * @module
 */
/** @internal */
export type StepStatus = 'pending' | 'running' | 'done' | 'failed';
/** @internal */
export interface ProgressStep {
    readonly id: string;
    readonly label: string;
    readonly status: StepStatus;
    readonly detail?: string;
    readonly durationMs?: number;
}
/** @internal */
export type ProgressReporter = (step: ProgressStep) => void;
/** @internal exported for testing */
export declare function createDefaultReporter(): ProgressReporter;
/** @internal exported for testing */
export declare class ProgressTracker {
    private readonly reporter;
    private startTimes;
    constructor(reporter?: ProgressReporter);
    start(id: string, label: string): void;
    done(id: string, label: string, detail?: string): void;
    fail(id: string, label: string, detail?: string): void;
    private elapsed;
}
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