Clarify output behavior when ageCheck is not_available

[ToshiWakayama-KDDI]

Problem description

Output behavior when ageCheck is not_available is not clear.

Expected action

As agreed in Discussions #51 , the following note should be added to the yaml.

Note: When ageCheck cannot be performed and returns "not_available":

• verifiedStatus and identityMatchScore will not be returned, as these are supplemental attributes to ageCheck and are only applicable when an age evaluation is possible.

• contentLock and parentalControl may still be returned, as their evaluation is independent of ageCheck.

Additional context

None

[ToshiWakayama-KDDI]

My proposal is to add the note to the Outputs section.

Outputs

If successful, a JSON object is returned containing the following data:

• ageCheck: Indicate 'true' when the age of the user is the same age or older than the age threshold (age >= age threshold), and 'false' if not (age < age threshold). Otherwise, 'not_available'.
• verifiedStatus: true if the information provided was checked against another form of official identification (Note), otherwise false. Note: Depending on the country, credit-check or other mechanism can be used instead of official identification for Age Verification. For details, please contact API Provider.
• identityMatchScore: The overall score of identity information available in the Operator, information either provided in the request body comparing it to the one that the MNO holds or directly using internal MNO's information. It is optional for the Operator to return the Identity match score.
• contentLock: Indicates if the subscription associated with the phone number has any kind of content lock (i.e certain web content blocked).
• parentalControl: Indicates if the subscription associated with the phone number has any kind of parental control activated.

Below the above, add the following:

Note: When ageCheck cannot be performed and returns "not_available":

• verifiedStatus and identityMatchScore will not be returned, as these are supplemental attributes to ageCheck and are only applicable when an age evaluation is possible.

• contentLock and parentalControl may still be returned, as their evaluation is independent of ageCheck.

I'll create a corresponding PR where we can continue the discussion.