# Spec delta: frontend-mall

## ADDED Requirements

### Requirement: Localized storefront
The mall SHALL render UI strings and catalog content in en or zh from one switcher, defaulting to en.

#### Scenario: switch to Chinese
- **WHEN** a shopper switches locale to zh
- **THEN** navigation, buttons and product names render in Chinese without reload errors

### Requirement: Multi-currency display
The mall SHALL offer a currency switcher (enabled currencies from the API) converting SKU prices for display; checkout uses the selected currency.

#### Scenario: switch currency
- **WHEN** a shopper switches from USD to JPY on a product priced $10.00
- **THEN** the displayed price reflects the API conversion rate (integer minor units)

### Requirement: Shopping flow
A shopper SHALL be able to browse, view detail, add to cart, checkout with a shipping address, pay (mock), track shipments, confirm delivery, and request an invoice — all against the live API.

#### Scenario: end-to-end purchase
- **WHEN** a registered shopper completes checkout on a non-empty cart
- **THEN** orders appear under Orders and the cart is empty