Add automated task fulfillment

During data collection, every task (create some text, rank some stuff, etc.) is posed to a human. We want to be able to delegate a fraction of this to automated systems (i.e. the cohere api, or a model that we have trained, either on synthetic, or eventually on the human data).
This means, that when, for example, the next task would be to "act as the assistant" and reply to a given conversation, we would dispatch that to somewhere automated, not give it to a human.
We should be able to control the frequency of this and the available endpoints. Ideally, all automated systems are available as APIs over the network, so that we don't have to run some large model inside the backend app. I suggest to start with some open huggingface endpoint.