v0.1.17

What's Changed

• feat(checkout): add product selection fields (MDK-403) by @NatElkins in #11
  • Add productId, productPriceId, customAmount, and product fields to checkout schema
  • Add .max(1) validation to products array (single selection)
  • Remove FREE price type support (only FIXED and CUSTOM remain)

Full Changelog: v0.1.16...v0.1.17