feat: 产品视图模型添加状态

- 产品状态：从Directus Schema获取Product的Status字段
- 视图字段：添加Status字段用于标示产品状态
- 测试方法：为Status字段添加单元测试

server/mappers/productMapper.ts

@@ -219,6 +219,8 @@ export function toProductDocumentView(
 export function toProductView(raw: Product): ProductView {
   const trans = raw.translations?.[0];
 
+  const status = raw.status ?? 'discontinued';
+
   const images = toProductImageView(raw.images ?? []);
 
   const specs = toProductSpecGroupView(raw.specs ?? []);
@@ -229,6 +231,7 @@ export function toProductView(raw: Product): ProductView {
 
   return {
     id: raw.id.toString(),
+    status: status,
     name: trans?.name ?? '',
     summary: trans?.summary ?? '',
     images: images,