ArthurB

Just thought I'd post an update on using the CBI Astute with Home Assistant. I have it working without having to Tasmotize it or open it or do anything silly to it.
I ignored the CBI app and simply added it using the Tuya Smart app. BUT, it didn't seem to like auto-pairing with my phone. (I ended up trying it with CBI app as well to troubleshoot and it didn't work there either). 
What I ended up doing was putting the Astute in AP mode (which doesn't appear to be documented) by holding the power down for 5 secs to put into normal pairing mode, and then holding it down again to put it AP mode (it will slow flash the blue light instead), then add manually in Tuya Smart, I just chose Others (wifi), follow the prompts, connect to the AP (which was SmartLife-2701 for me) and boom! Shows up as ASC (Wifi) with CBI logos and backgrounds in all the right places, with the power monitoring working correctly. 
As for home assistant I haven't gone any further that using the built Tuya integration which only shows it as a switch, but there is something else on HACS called Local Tuya which allows full customisation including power monitoring. I haven't gone down that rabbit-hole yet because it's time for beer.

This is mine:
https://github.com/tinuva/home-assistant-config/blob/master/packages/tuya_local.yaml
Instead of the template sensors, you can let the tuya plugin create them for you, just use those other numbers for the id on them.