Walking Pad Z1 Support

[BlaXun]

Checklist

• I have filled out the template to the best of my ability.
• This only contains 1 feature request (if you have multiple feature requests, open one feature request for each feature request).
• This issue is not a duplicate feature request of previous feature requests.

Is your feature request related to a problem? Please describe.

None

Describe the solution you'd like

King Smith has a new entry model, the Z1. Uses Bluetooth so might work?

Describe alternatives you've considered

None

Additional context

I’d be happy to serve as a tester

[BlaXun]

I was able to add the device when I added the identifier KS-HD-Z1D to the manifest.json
The connection seems to be lost all the time, sometimes step count is shown. Setting speed throws an error. But hey, at least the connection works. So, one step forward

[BlaXun]

I can see the following in my ESP32 BT Repeater