[WIP] Simplify and refactor to use Weave

[tcapelle]

trafficstars

• A simpler finetune script
• An eval script that uses weave and Evaluations
• Better prompt defaults

[lukas]

thanks

[lukas]

should I work from here?

[tcapelle]

Hey, it depends.

We probably should merge this into a working branch instead of main, as it introduces breaking changes and removes a lot of files. The scores obtained are also not the same, let's discuss this in London if you have a moment.