Add invocation event information to `verifyUserEmails` parameters

[mtrezza]

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New Feature / Enhancement Checklist

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Current Limitation

When setting the Parse Server option verifyUserEmails to a function, it's unknown to the function why it has been called. This does not allow for taking specific action according to the event.

Feature / Enhancement Description

Add a parameter to the method call, to know whether:

• It was a sign-up or login
• Which auth method has been used (username/password, auth provider)

It could simply pass the object that would be stored in the session createdWith field, as that already contains all the infos, for example:

{ "action": "login", "authProvider": "apple" }
{ "action": "signup", "authProvider": "password"}

Example Use Case

Require email verification only for auth providers who do not verify email addresses themselves.