Get pool of registered assets for market

curl --request GET \
  --url http://localhost:8001/entities/market/{market_id}/pool/registered

{
  "assets": [
    {
      "alias": "<string>",
      "bidding_zone": "DE_TENNET",
      "id": "<string>",
      "type": "Vehicle"
    }
  ],
  "available_flex": {
    "expected_value_kw": [],
    "timestamps": []
  },
  "bids": [
    {
      "from_level_mw": 123,
      "from_time": "2023-11-07T05:31:56Z",
      "id": "<string>",
      "price_eur": 123,
      "submitted": true,
      "to_level_mw": 123,
      "to_time": "2023-11-07T05:31:56Z"
    }
  ],
  "id": "<string>",
  "is_qualified": true,
  "market_id": "<string>",
  "qualifies": true
}