text: Title: Inference database dummy data fill ability
  Body: There's some dummy data [here](https://github.com/LAION-AI/Open-Assistant/tree/main/backend/test_data) which was used for filling the data collection backend DB, could maybe be reused
  
  In that backend we had a setting which was used on server start to determine whether to fill with data, see [here](https://github.com/LAION-AI/Open-Assistant/blob/main/backend/oasst_backend/config.py#L194)