sparkles2026-04-24: Cart Service - cart.updated event on any cart modification

Overview

The Cart Service now emits the cart.updated event whenever a cart is modified. This standardizes event behavior so downstream consumers can reliably react to all cart changes.

Updated endpoints

Endpoint
Description

Emits cart.updated when cart-level data is changed.

Emits cart.updated when the cart site is changed.

Emits cart.updated when the cart currency is changed.

Emits cart.updated when the cart is refreshed.

Emits cart.updated when carts are merged.

Emits cart.updated when a new item is added.

Emits cart.updated when items are added in batch.

Emits cart.updated when an item is updated.

Emits cart.updated when an item is removed.

Emits cart.updated when cart items are cleared.

Emits cart.updated when a discount is applied.

Emits cart.updated when all discounts are removed.

Emits cart.updated when a single discount is removed.

Known problems

There are no known problems.

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