Two related improvements to the in-app chat experience:

1. Persistent memory across chat sessions – context and conversation history should carry over when starting a new chat, so users do not have to re-explain their situation each time.

2. Graceful long-session handoff – instead of an abrupt pop-up when a chat reaches its length limit, Piere should proactively warn the user (“this chat is getting long, let’s move to a new one”) and automatically generate a summary prompt so the user can continue seamlessly in a fresh session without losing context.