This happened to me many times that for some reason (extension update, VS Code restart, etc) my active chat with quite long context gets disappear. I'm a free user and I willing to pay for this feature. I think it doesn't event have to be stored in your backend. Just cache all the chat locally and let us at least restore some of the context. If this would not be possible unfortunately I will start looking other solutions. I hope get some upvotes on this. Thanks for the useful extension.