Inventory Count Mutation Update, Subscription Cadence, Metafield Deprecations

The inventoryCountCreate mutation’s lineItems argument shows a simpler description but remains functionally identical, ensuring backward compatibility. InventoryCount objects received updated descriptions for createdAt, lineItems, and locationSnapshot to clarify intent. InventoryCountLineItem fields expectedQuantity and totalCountedQuantity now contain more precise descriptions, with no type changes. Two new error codes, INVALID_ITEM for InventoryCountCreateUserErrorCode and REFUND_NO_LONGER_ALLOWED for OrderTransactionErrorCode, are now available for error handling. New subscription types, SubscriptionContractCalculationCadence and SubscriptionContractCalculationMultipleFulfillmentConfig, provide detailed cadence information for billing and multi‑fulfillment scenarios. SubscriptionBillingPolicy now includes a mandatory cadence field, and SubscriptionDeliveryPolicy gains a multiFulfillment object describing multiple deliveries per billing cycle. SubscriptionContractCalculationSuccess adds withMerchandiseCustomizations to indicate if customizations affected the calculation. Legacy CollectionSourceInclusionConditionMetafieldInteger objects and inputs have been deprecated; use the new integer equivalents to avoid 32‑bit Int limits.