优惠券加两字段

src/main/java/com/ycwl/basic/model/pc/coupon/entity/CouponEntity.java

@@ -19,6 +19,12 @@ public class CouponEntity {
     // 新增优惠券名称字段
     private String name;
     
+    // 优惠券描述
+    private String description;
+    
+    // 倒计时字段（仅用于展示）
+    private String countdown;
+    
     /**
      * 优惠券类别，0：普通优惠券；1：第一次推送；2：第二次；3：第三次
      */

src/main/java/com/ycwl/basic/model/pc/coupon/resp/CouponRespVO.java

@@ -13,6 +13,12 @@ public class CouponRespVO {
     // 新增优惠券名称字段
     private String name;
     
+    // 优惠券描述
+    private String description;
+    
+    // 倒计时字段（仅用于展示）
+    private String countdown;
+    
     /**
      * 优惠券类别，0：普通优惠券；1：第一次推送；2：第二次；3：第三次
      */

src/main/resources/mapper/CouponMapper.xml

@@ -11,7 +11,7 @@
     <select id="selectByQuery" resultType="com.ycwl.basic.model.pc.coupon.resp.CouponRespVO">
         SELECT
         c.id, scenic_id AS scenicId, s.name as scenicName,
-        c.name AS name,
+        c.name AS name, c.description AS description, c.countdown AS countdown,
         config_ids AS configIds, discount_price AS discountPrice,
         type, discount_type AS discountType,
         c.status, c.create_at