curl --request GET \
  --url https://api.mixpeek.com/v1/collections/{collection_identifier}/features

{
  "features": [
    {
      "feature_extractor_name": "gte_modernbert_base",
      "inputs": [
        {
          "path": "text",
          "type": "string"
        }
      ],
      "outputs": [
        {
          "dim": 768,
          "path": "features.text_embedding",
          "type": "vector"
        }
      ],
      "version": "1.0.0"
    }
  ]
}