Please remove the cleared conversation history

**"Please remove the cleared conversation history, because in this way we lose our work. It is difficult for us to understand the AI again, which is not what we want."**

No file, test, or entry point is named. First clarify what “cleared conversation history” means, which history should be retained, and the expected behavior; done means the agreed conversation history remains available without losing prior work.

Written by the indexing model from the issue text.