- Replace CardElement with PaymentElement + AddressElement in subscription forms
- Add AddressElement to donation forms for billing address collection
- Now collects: Name, Address Line 1/2, City, State, Postal Code, Country
- Card details: Card Number, Expiration, CVC
- Both desktop and mobile forms updated
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
