curl --request GET \
  --url http://aris.local/api/heatpumps \
  --header 'Authorization: Bearer <token>'

{
  "heatPumps": [
    {
      "hpId": "hp_outdoor_1",
      "parentHcuId": "hcu_main",
      "compressorSpeedPercent": 65,
      "compressorHz": 78,
      "fanRpm": 850,
      "defrostActive": false,
      "highPressureBar": 28.5,
      "lowPressureBar": 8.2,
      "compressorDischargeTempC": 85,
      "compressorSuctionTempC": 12,
      "thermalPowerKw": 12.5,
      "electricalPowerKw": 3.2,
      "copInstant": 3.9,
      "acVoltageV": 230,
      "acCurrentA": 12.5,
      "firmwareVersion": "v2.4.1",
      "activeFaults": []
    }
  ]
}