[Feature] Continuous Multitasks / 多轮对话

[tianjiangqiji]

Feature Description / 功能描述

Problem:
When users want to continue an existing conversation, the agent often starts a brand-new task instead of keeping the current context and continuing the dialogue.

Solution:
Add a "continue conversation" / follow-up mode so the agent can append responses in the same thread, keep the existing context, and only create a new task when the user explicitly asks for one.

API changes:

• Add a conversation continuation flag or session state.
• Support appending follow-up messages to the current agent thread.
• Preserve prior task context when a user asks to continue the discussion.

Community Communication / 社区沟通

• I will be polite and respectful. / 我会保持礼貌与尊重。
• I will share constructive, actionable suggestions. / 我会提供建设性、可行动的建议。
• I have read the CODE_OF_CONDUCT.md and CONTRIBUTING.md. / 我已阅读行为准则。

[AburronKing]

同强烈建议😯

[Liuhanlin23]

@gaomeng1900 您好请问目前接收这样的PR么？