PhoneAuthProvider VerifyPhoneNumber feature requests :]

hello dear Firebase team,

it would be great if VerifyPhoneNumber of PhoneAuthProvider had these features:

1- after as for example 10 sec. if it couldn't be connected to firebase => then call connectionlost()
2- if phone number was verified on past as for example on last 24 hrs. => then call verificationonpast()

thanks for your response :]

Start at the Firebase Unity SDK's PhoneAuthProvider.VerifyPhoneNumber entry point and trace how it handles connection failures and previously verified phone numbers. The issue provides no file or test names, so first identify the relevant implementation and existing callback tests. Done means the requested connectionlost() and verificationonpast() behaviors are defined and verified.

Written by the indexing model from the issue text.