feat(card): 构建全球6大赛道高保真Demo数据并完成线上数据库与服务部署

mpuniapp/common/types.uts

@@ -325,6 +325,7 @@ export interface CardCase {
   coverImage?: string;
   pdfUrl?: string;
   description?: string;
+  metaJson?: string;
   sortOrder?: number;
   createTime?: string | Date;
   updateTime?: string | Date;