- Adds local‑currency gift card support via the new giftCardProductSet mutation with issuanceCurrency and crossCurrencyRedeemable fields (immutable after creation).
- Deprecates the initialValue field; use initialAmount (amount + currency) when creating gift cards with giftCardCreate.
- Introduces GiftCard.isRedeemable and GiftCard.crossCurrencyRedemptionStrategy for handling cross‑currency redemption logic.