Always send sensor registration device class + entity category to prevent errors due to old registration

[jpelgrom]

Summary

Fixes #3202, fixes home-assistant/core#102853

Always send the values for device_class and entity_category when registering sensors to make sure they match the app value. Some sensors were changed in the past based on feedback, but users with existing registrations wouldn't have seen this updated in core as the app didn't send null values instead of sending that it should be null. To make this possible, registrations and updates need to be split as the app currently depends on using null as "don't send".

Example before/after payloads:

{"type":"register_sensor","data":{"unique_id":"battery_state","state":"discharging","type":"sensor","icon":"mdi:battery-minus","attributes":{},"name":"Battery state","entity_category":"diagnostic","disabled":false}}
{"type":"register_sensor","data":{"unique_id":"battery_state","state":"discharging","type":"sensor","icon":"mdi:battery-minus","attributes":{},"name":"Battery state","device_class":null,"entity_category":"diagnostic","disabled":false}}

{"type":"register_sensor","data":{"unique_id":"audio_sensor","state":"normal","type":"sensor","icon":"mdi:volume-high","attributes":{},"name":"Ringer mode","disabled":false}}
{"type":"register_sensor","data":{"unique_id":"audio_sensor","state":"normal","type":"sensor","icon":"mdi:volume-high","attributes":{},"name":"Ringer mode","device_class":null,"entity_category":null,"disabled":false}}

Screenshots

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Link to pull request in Documentation repository

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Any other notes

Requires home-assistant/core#86965, which was first included in 2023.2.0.

[dshokouhi]

Thanks for the fix 🙏 !

I think we may want to opt to cut a release alongside HA core 2023.11 otherwise we may get more noise on this issue. I think this was one of the original sensors enabled by default for all users before we broke up attributes so could have a fair amount of users impacted by it depending on when they first setup the app.