ACC-012: Order History — list of past orders with status and detail view

## Overview
Authenticated users can view a paginated list of their past orders, with status indicators and a detail view for each order.

## Acceptance Criteria
- [ ] Order History page accessible from account nav
- [ ] Paginated list of orders (most recent first), showing: order ID, date, status, total
- [ ] Clicking an order shows the full order detail (same info as ORD-002 confirmation page)
- [ ] Status values: Processing, Shipped, Delivered, Cancelled
- [ ] Empty state when user has no orders

## Depends On
- #46 (ORD-001 — Order Service: source of order data)
- #37 (AUTH-001 — user must be logged in)

## Blocks
- #18 (OPS-009 — Returns Portal: depends on order history)

Review #46 for the order data source and #37 for authentication, then locate the account navigation and the existing ORD-002 confirmation page. Done means an authenticated user can browse a paginated, newest-first order list, open each order's details, see the defined statuses, and receive an empty state when there are no orders.

Written by the indexing model from the issue text.