If not present created_at for all models shoud be generated in build.py
Same for updated_at
Maybe for updated_at, we need to load previous all.json and see changes from updated models

For top-level models use HF id like:
https://huggingface.co/api/models/TinyLlama/TinyLlama-1.1B-Chat-v0.6
id="TinyLlama/TinyLlama-1.1B-Chat-v0.6"
For include's model without HF id generate uuid in build.py

device_targets:

• array of device_target
  device_category
• name: string
• nb_cpu: number range { min?, max? }
• nb_gpu: number range { min?, max? }
• ram: number range { min?, max? }
• vram: number range { min?, max? }
• gpu_models: array of string
• cpu_models: array of string
• npu_models: array of string

In Model Collection
recommendations:

• array of recommendation
  recommendation:
• name: string
• description: string
• model_id: array of string
• targets: array of string (name of the target)