Add patterns: bootstrap, human in the loop, agentic

[automata]

We're covering the first (using PRD, etc) but the second is also interesting, specially for chat-based tools, and can become necessary while in the large arc:

• Large requirements for the whole project
• Small requirements for each specific feature

Cursor co-founder, for instance, suggest second approach more than first.

[automata]

I believe we can split patterns of AI assisted coding into:

1. Bootstrap from requirements: use AI to bootstrap and then either go for (2) or a mix of (2) and manual coding
2. Human in the loop: keep iterating on each response in the chat
3. Agentic: let different agents work on tasks by themselves