consumePurchase

Consumes a purchased product, allowing it to be purchased again. Call this after you have granted the user their items/credits.

For consumable products (e.g., coins, gems), you must consume the purchase to allow the user to buy it again. The flow should be:

1. User purchases product
2. onProductPurchased callback fires
3. Grant user their items (update balance, etc.)
4. Call consumePurchase(productId)
5. onPurchaseConsumed callback fires (if listener set)

Parameters