Multi-step scheduler for in-depth agent requests. Detects when user needs multiple steps, suggests plan and waits for confirmation, persists state, and runs heartbeat-aware flow. Use when requests have 3+ actions, sequential dependencies, output dependencies, or high scope/risk.

用于深度代理请求的多步骤调度器。检测用户是否需要多个步骤，提出计划并等待确认，保存状态，并执行心跳感知流程。适用于包含三项以上操作、具有顺序依赖关系、输出依赖关系或高范围/高风险的请求。