Support for Graceful Cancellation and Resource Cleanup via aclose()/cancel() on CrewStreamingOutput Streaming Objects

在 FastAPI 等异步 Web 服务中使用 Crew.akickoff(stream=True) 流式输出时,客户端断开连接不会自动取消内部 Agent/LLM 子任务,缺少 Support for Graceful Cancellation and Resource Cleanup via a








