breaking: remove deprecated cart API

[rmi22186]

Summary

• Removes the long-deprecated cart API (mParticle.eCommerce.Cart.add/remove/clear, Identity.getCurrentUser().getCart(), and all associated methods)
• Removes ShoppingCart from the SDK event model, server DTO conversion, and Events API converter
• Removes maxProducts config option and cart-related storage name constants
• Cleans up all associated interfaces (SDKCart, ICart, SDKShoppingCart, mParticleUserCart)

Breaking Changes

The following public APIs are removed:

• mParticle.eCommerce.Cart.add(product, logEvent)
• mParticle.eCommerce.Cart.remove(product, logEvent)
• mParticle.eCommerce.Cart.clear()
• mParticle.Identity.getCurrentUser().getCart()
• mParticle.Identity.getCurrentUser().getCart().add()
• mParticle.Identity.getCurrentUser().getCart().remove()
• mParticle.Identity.getCurrentUser().getCart().clear()
• mParticle.Identity.getCurrentUser().getCart().getCartProducts()
• maxProducts init config option

Migration: Use mParticle.eCommerce.logProductAction() with mParticle.ProductActionType.AddToCart or mParticle.ProductActionType.RemoveFromCart instead.

Test plan

• Build passes (npm run build)
• All 2030 tests pass (npm test)
• Verify no runtime errors when Cart methods are not present on the eCommerce object

🤖 Generated with Claude Code

[rmi22186]

deadcode from logpurchase/logrefund which were removed

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[cursor]

PR Summary

Medium Risk
Medium risk because it removes previously exposed (though deprecated) public APIs and stops emitting shopping_cart/sc fields in commerce payloads, which can break downstream integrations expecting them.

Overview
Removes the long-deprecated cart surface area from the SDK: mParticle.eCommerce.Cart.* and Identity.getCurrentUser().getCart() are deleted along with their type definitions, stubs, and instance-manager passthroughs.

Eliminates ShoppingCart from the commerce event model and serialization pipeline (SDK runtime models, server DTO conversion, and Events API conversion), and drops related config/constants such as maxProducts and cart-specific storage names.

^{Written by Cursor Bugbot for commit 618f07c. This will update automatically on new commits. Configure here.}