- Add new reward-order-confirmation feature library with components and store
- Implement checkout completion orchestrator service for order finalization
- Migrate checkout/oms/crm models to Zod schemas for better type safety
- Add order creation facade and display order schemas
- Update shopping cart facade with order completion flow
- Add comprehensive tests for shopping cart facade
- Update routing to include order confirmation page
refactor(checkout): migrate purchase options to shopping cart-based architecture
Replace processId with shoppingCartId in purchase options modal and related components
Add new checkout data-access library with facades, services, and schemas
Update PurchaseOptionsService to use new checkout facade pattern
Migrate state management from process-based to shopping cart-based approach
Update selectors and store to handle shoppingCartId instead of processId
Improve type safety with Zod schemas for checkout operations
Add proper error handling and logging throughout checkout services
Update article details and checkout review components to use new patterns
BREAKING CHANGE: Purchase options modal now requires shoppingCartId instead of processId
Related work items: #5350
