Add metrics from 'states' API endpoint

[pbrinette]

Thanks @acesyde for your wonderful works.

I've noticed that the API have a 'states' endpoint (https://myhome.mylight-systems.com/api/states) with some interesting metrics.

It would be great to report informations about the virtual battery :

The battery capacity is described in the devices endpoint :

    },
    {
      "id": "YPbhyA2XXXXX2J4z_msb",
      "name": "Battery 1",
      "type": "bat",
      "batteryCapacity": 600,
      "batteryNumberOfBoxes": 1,
...

And the actual capacity informations are defined in the states endpoint.

...
       {
          "sensorId": "YPbhyA2XXXXX2J4z_msb-soc",
          "measure": {
            "value": 523140069.59999996,
            "type": "soc",
            "unit": "Ws",
            "date": "2023-05-05 16:45:00"
          }
        }

What do you think about that ?

[acesyde]

I have my battery activated since 3 day and I have found exactly the same endpoint yesterday to retrieve the battery current state, I will implement it in a couple of days or if you want you can made a PR 👍

[acesyde]

@pbrinette you can try with 0.0.5-beta.1 a new sensor is available ;)

[pbrinette]

Thanks @acesyde . I've asked some questions on the HACS French forum page related to your integration.

[pbrinette]

I've tested the last release. The battery information are correctly handled.