/**
 * Ink ActivityBlock — Cursor-style in-thread run accordion for the TUI.
 *
 * Shows "执行中 · …" / "已完成 · N 次工具 · M 次技能 · 4.2s" plus step rows.
 * A2A: "等待子 Agent" while an agent step is running.
 * Always expanded in the TUI (no mouse accordion toggle).
 */
import { type ChatActivity } from '../../core/chat-activity.js';
export interface ActivityBlockProps {
    activity: ChatActivity;
    /** Terminal content width hint (reserved). */
    width?: number;
}
export declare function ActivityBlock({ activity }: ActivityBlockProps): JSX.Element;
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