Add order status and lifecycle timestamps to order detail response

[Copilot]

Overview

Order detail API was missing critical fields needed for displaying order status and tracking delivery lifecycle on the frontend.

Changes

OrderDetailResponse DTO

• Added orderStatus enum field (ORDER_RECEIVED, SHIPPING, DELIVERED, CONFIRMED, CANCELED)
• Split address into separate fields: deliveryAddress, detailAddress, postalCode
• Added lifecycle timestamps: shippingStartedAt, deliveredAt, confirmedAt, canceledAt

OrderConverter

• Updated toDetailResponse() to map all new fields from Order entity
• Removed address concatenation logic to preserve field separation

API Documentation

• Enhanced Swagger description for GET /api/orders/{orderId} endpoint

Example Response

{
  "id": 123,
  "orderNumber": "ORD-20260206-abc12345",
  "orderStatus": "SHIPPING",
  "deliveryAddress": "서울시 강남구 테헤란로 123",
  "detailAddress": "456호",
  "postalCode": "06234",
  "shippingStartedAt": "2026-02-05T14:30:00",
  "deliveredAt": null,
  ...
}

Original prompt

---

This section details on the original issue you should resolve

<issue_title>[Feat] 주문 상세 보기 화면</issue_title>
<issue_description>## 📌 Description

[Feat] 주문 상세 보기 화면

✅ To-do

• 진행 예정
• 진행 완료

📒 기타</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes [Feat] 주문 상세 보기 화면 #93

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