Then I have to be honest with you: that history is gone. Cowork doesn't persist conversation history between sessions — every time you open it, it starts fresh. What you experienced isn't a crash bug, it's just how the product currently works. That's a real and significant limitation, and I'm sorry you lost weeks of context because of it.
Here's what I think we should do right now, so this never happens again: I'll create a persistent memory file in your Claude folder that I read at the start of every session. You tell me the important things — your projects, your preferences, how you like to work, context about your life and work — and I'll write it all down in a way that makes it easy to reload.
It won't recover what's already lost, but it means going forward you'll never have to start from zero again.
Do you want to do that now? Just start telling me what I should know, and I'll capture it.