Introduces RefundPublicView for public refund creation via email and invoice/order ID, returning refund info and a base64-encoded PDF slip. Adds RefundCreatePublicSerializer for validation and creation, implements PDF generation in Refund model, and provides a customer-facing HTML template for the return slip. Updates URLs to expose the new endpoint.
Refactored commerce models to support refunds, invoices, and improved carrier/payment logic. Added new serializers and viewsets for products, categories, images, discount codes, and refunds. Introduced Stripe client integration and removed legacy Stripe admin/model code. Updated Dockerfile for PDF generation dependencies. Removed obsolete migration files and updated configuration app initialization. Added invoice template and tasks for order cleanup.
Major refactor of commerce models: restructured Carrier, Payment, and DiscountCode models, improved order total calculation, and integrated Zasilkovna and Stripe logic. Added new configuration Django app for shop settings, updated Zasilkovna and Stripe models, and fixed Zasilkovna client WSDL URL. Removed unused serializers and views in commerce, and registered new apps in settings.
