Accelerated Checkouts: automate Apple Pay supported networks from merchant configuration

[josemiguel-alvarez]

This PR automates the process of fetching the accepted card brands from the Shop configuration in the Storefront API and maps those values to Apple Pay supported networks.

In the first video every card brand is enabled:

RPReplay_Final1752744667.MP4

In the second video I've disabled Visa and, as you can see, the card is not available:

RPReplay_Final1752744185.MP4

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• I have bumped the version number in the podspec file.
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[tiagocandido]

✨

[kieran-osgood-shopify]

I don't think the PaymentSettings card brands can be used for the supportedNetworks

We can see the valid cards in my store here:

I think this is the relevant file in core, which shows the valid options
https://github.com/shop/world/blob/main/areas/core/shopify/components/payment_processing/app/services/apple_pay/payment_request_options.rb

We are missing support for cards like maestro if we use this api

[kristinhung]

@kieran-osgood-shopify Automatically obtaining credit cards from a merchant's payment settings is more on the greenpath and already supports the major credit card brands. The API can also be easily evolved to support more cards, even if it doesn't allow for all cards today.

Although having the merchant configure this separately could immediately allow merchants to use all of their supported credit card brands, this pattern is not scalable for partner use cases and creates more work for merchants and potential out of sync issues.

[kieran-osgood-shopify]

Approved if we are happy with accepted card brands having being more limiting than the current capabilities