Lost track of what an AI-built codebase does

The fix

If you can't navigate your code, you can't fix bugs and you can't add features without making it worse. Spend an afternoon writing an architecture overview into `ARCHITECTURE.md` — what each top-level folder does, where state lives, what's a server vs client boundary. Make the AI generate the first draft, then audit it yourself. The act of auditing is half the learning.