USER_EMAIL_NOT_FOUND occurs when using authClient.signIn.social({ provider: 'apple', idToken })
I encountered this before and it went away somehow, but now I'm getting it again. I'm using
authClient.signIn.social() with idToken returned by expo-apple-authentication on ios. Not sure if this is the correct usage, but I'm using that even for first time users who do not exist in the db yet (assuming it will create a new user).