feat: 将Markdown渲染改为HTML渲染

- CMS相关字段由Markdown改为WYSIWYG，前端做出对应更改
- AssetUrl重写：将CMS地址重写为本地API

server/api/cms/product/[id].get.ts

@@ -9,5 +9,13 @@ export default defineEventHandler(async (event) => {
     });
   const locale = getHeader(event, 'x-locale') || 'zh-CN';
 
-  return productService.getProductById(id, locale);
+  const product = await productService.getProductById(id, locale);
+
+  product.description = rewriteAssetUrls(
+    product.description,
+    useRuntimeConfig().public.directus.url,
+    '/api/assets'
+  );
+
+  return product;
 });