feat(订阅查询): 添加节点数量计算逻辑

在查询订阅列表时，解析节点ID和标签并计算对应的节点数量

internal/logic/public/subscribe/querySubscribeListLogic.go

@@ -3,6 +3,7 @@ package subscribe
 import (
 	"context"
 	"encoding/json"
+	"strings"
 
 	"github.com/perfect-panel/server/internal/model/subscribe"
 	"github.com/perfect-panel/server/internal/svc"
@@ -53,8 +54,35 @@ func (l *QuerySubscribeListLogic) QuerySubscribeList(req *types.QuerySubscribeLi
 			var discount []types.SubscribeDiscount
 			_ = json.Unmarshal([]byte(item.Discount), &discount)
 			sub.Discount = discount
-			list[i] = sub
 		}
+		
+		// 计算节点数量
+		var nodeIds []int64
+		var tags []string
+		
+		// 解析节点ID
+		if item.Nodes != "" {
+			nodeIds = tool.StringToInt64Slice(item.Nodes)
+		}
+		
+		// 解析标签
+		if item.NodeTags != "" {
+			tagStrs := strings.Split(item.NodeTags, ",")
+			for _, tag := range tagStrs {
+				if tag != "" {
+					tags = append(tags, tag)
+				}
+			}
+		}
+		
+		// 获取节点数量
+		nodeCount, err := l.svcCtx.NodeModel.CountNodesByIdsAndTags(l.ctx, nodeIds, tags)
+		if err != nil {
+			l.Errorw("[QuerySubscribeListLogic] Count nodes failed", logger.Field("error", err.Error()), logger.Field("subscribeId", item.Id))
+			nodeCount = 0 // 出错时设置为0
+		}
+		sub.NodeCount = nodeCount
+		
 		list[i] = sub
 	}
 	resp.List = list