feat: log AI calls

[mikewuu]

We should log calls & responses to:

• track ai performance
• track usage & cost

Requirements:

• [x] set version to GPT-4o-2024-05-13 Using gpt-3.5-turbo for classification + gpt-4o for answers
• [ ] include app env
• [ ] include org info making call
• [ ] include prompt & response
• [ ] ability to track tool calls. maybe we set an id on getAnswer and forward to each tool to track
• [ ] set ai_call: true for every call (and in each function)