feat(ticket): 添加购买数量字段到用户票务实体

- 在GltUserTicket实体中新增buyQty字段用于存储购买数量
- 在票务发放服务中设置购买数量到用户票务记录
- 更新实体注解以包含购买数量的描述信息

src/main/java/com/gxwebsoft/glt/entity/GltUserTicket.java

@@ -70,6 +70,9 @@ public class GltUserTicket implements Serializable {
     @Schema(description = "已释放数量")
     private Integer releasedQty;
 
+    @Schema(description = "购买数量")
+    private Integer buyQty;
+
     @Schema(description = "用户ID")
     private Integer userId;
 

src/main/java/com/gxwebsoft/glt/service/GltTicketIssueService.java

@@ -257,6 +257,7 @@ public class GltTicketIssueService {
         userTicket.setUsedQty(0);
         // 初始可用量来自“购买量”，视为已释放
         userTicket.setReleasedQty(buyQty);
+        userTicket.setBuyQty(buyQty);
         userTicket.setUserId(order.getUserId());
         userTicket.setSortNumber(0);
         userTicket.setComments("订单发放套票");