Feature/custom_entity

[Pho3niX90]

The new CustomEntity interface allows for streamlined handling of state-related tasks and boilerplate code reduction. Additionally, the full battery capacity computation logic is now encapsulated within the getBatteryCapacity method. This promotes better organization and clarity throughout the codebase.

I added the co-authored tag. Although I "think" I got all the logic, I might not have understood the intent at all of the calculations, so just need another pair of eyes.

[slipx06]

I'm getting this error

Edit found the problem

[Pho3niX90]

@slipx06 should be fixed now, was because toNum() was called on the state, and since state was of type any, it didn't throw type safety errors.

I have fixed the state, by changing it to back to string (HassEntity type).

[slipx06]

The last update broke battery energy. Its a problem with state_battery_rated_capacity

[slipx06]

I think this is good to merge now.

Is there a better way to handle this error. Happens when you set battery_energy: null

[Pho3niX90]

That should fix it. The optional chaining operator fixes these issues ?, it will then only call toString() if the object is not null.