Get data from iOS

Ahh - I'd ignore the fact it says android.calendar.json and just write into it with the data yourself. We can always rename the file later.

The main weather library is at https://github.com/espruino/BangleApps/blob/master/apps/weather/lib.js and reads from weather.json. I believe the rough format is in https://www.espruino.com/Gadgetbridge if you search for weather there:

temp,hi,lo,hum,rain,uv,code,txt,wind,wdir,loc - weather report (current temp, days highest temp, days lowest temp, current humidity, rain/precip probability, UV Index, current condition code, current condition text, wind speed, wind direction)

Sorry it's not better documented though - you can see roughly what form the data takes at https://github.com/espruino/BangleApps/blob/master/apps/weather/clkinfo.js