[iOS] Add support for primaryAccountIdentifier in IOSCardData to enable device filtering

[iamdreo]

Description

Two related issues when provisioning cards to multiple devices (iPhone + Apple Watch):

Issue 1: Device picker shows all devices after first provisioning

After adding a card to iPhone, clicking "Add to Wallet" again shows both iPhone and Watch in the picker, instead of just Watch.

Issue 2: No way to know which device was selected

The issuerEncryptPayloadCallback is called with nonce, nonceSignature, and certificates, but doesn't indicate which device (iPhone or Watch) the user selected. This is needed to pass the correct device_type to the issuer's backend.

Root Cause

Issue 1

primaryAccountIdentifier is not exposed in IOSCardData or set on PKAddPaymentPassRequestConfiguration.

Issue 2

The callback signature doesn't include device information:
issuerEncryptPayloadCallback: (
nonce: string,
nonceSignature: string,
certificate: string[]
) => Promise
// Missing: deviceType parameter

[zfurtak]

Hi, this is a great call, Apple Watch support would be a missive value-add 🚀
I'm currently tied up with a few other priorities but as soon as I wrap those up, I'll get started on the integration.
Thanks for brining this up!

[iamdreo]

@zfurtak thank you so much.. i see in the docs, that you can getCardStatus on ios by checking last four digits on card.. this works yh? cause for some reason it doesnt work for me, i can add card to apple wallet but when i query card by this.. it doesnt work