feat: 用户订阅显示节点分组名及限速起止时间

- UserSubscribe/UserSubscribeDetail 新增 node_group_id/node_group_name 字段
- 管理员查询用户订阅列表批量填充分组名
- 管理员查询单个订阅详情填充分组名
- ThrottleResult/UserSubscribeDetail 新增 throttle_start/throttle_end 字段
- 限速时返回限速窗口起止时间（秒级 Unix 时间戳）

Co-Authored-By: claude-flow <ruv@ruv.net>

internal/logic/admin/user/getUserSubscribeByIdLogic.go

@@ -3,6 +3,7 @@ package user
 import (
 	"context"
 
+	"github.com/perfect-panel/server/internal/model/group"
 	"github.com/perfect-panel/server/internal/svc"
 	"github.com/perfect-panel/server/internal/types"
 	"github.com/perfect-panel/server/pkg/logger"
@@ -36,12 +37,22 @@ func (l *GetUserSubscribeByIdLogic) GetUserSubscribeById(req *types.GetUserSubsc
 	var subscribeDetails types.UserSubscribeDetail
 	tool.DeepCopy(&subscribeDetails, sub)
 
+	// 填充分组名
+	if sub.NodeGroupId > 0 {
+		var ng group.NodeGroup
+		if err := l.svcCtx.DB.WithContext(l.ctx).First(&ng, sub.NodeGroupId).Error; err == nil {
+			subscribeDetails.NodeGroupName = ng.Name
+		}
+	}
+
 	// Calculate speed limit status
 	if sub.Subscribe != nil && sub.Status == 1 {
 		result := speedlimit.Calculate(l.ctx, l.svcCtx.DB, sub.UserId, sub.Id, sub.Subscribe.SpeedLimit, sub.Subscribe.TrafficLimit)
 		subscribeDetails.EffectiveSpeed = result.EffectiveSpeed
 		subscribeDetails.IsThrottled = result.IsThrottled
 		subscribeDetails.ThrottleRule = result.ThrottleRule
+		subscribeDetails.ThrottleStart = result.ThrottleStart
+		subscribeDetails.ThrottleEnd = result.ThrottleEnd
 	}
 
 	return &subscribeDetails, nil

internal/logic/admin/user/getUserSubscribeLogic.go

@@ -3,6 +3,7 @@ package user
 import (
 	"context"
 
+	"github.com/perfect-panel/server/internal/model/group"
 	"github.com/perfect-panel/server/internal/svc"
 	"github.com/perfect-panel/server/internal/types"
 	"github.com/perfect-panel/server/pkg/logger"
@@ -38,10 +39,33 @@ func (l *GetUserSubscribeLogic) GetUserSubscribe(req *types.GetUserSubscribeList
 		Total: int64(len(data)),
 	}
 
+	// 收集所有 node_group_id，批量查分组名
+	groupIdSet := make(map[int64]struct{})
+	for _, item := range data {
+		if item.NodeGroupId > 0 {
+			groupIdSet[item.NodeGroupId] = struct{}{}
+		}
+	}
+	groupNames := make(map[int64]string)
+	if len(groupIdSet) > 0 {
+		ids := make([]int64, 0, len(groupIdSet))
+		for id := range groupIdSet {
+			ids = append(ids, id)
+		}
+		var groups []group.NodeGroup
+		if err := l.svcCtx.DB.WithContext(l.ctx).Where("id IN ?", ids).Find(&groups).Error; err == nil {
+			for _, g := range groups {
+				groupNames[g.Id] = g.Name
+			}
+		}
+	}
+
 	for _, item := range data {
 		var sub types.UserSubscribe
 		tool.DeepCopy(&sub, item)
 		sub.Short, _ = tool.FixedUniqueString(item.Token, 8, "")
+		sub.NodeGroupId = item.NodeGroupId
+		sub.NodeGroupName = groupNames[item.NodeGroupId]
 		resp.List = append(resp.List, sub)
 	}
 	return

internal/types/types.go

@@ -3259,6 +3259,8 @@ type UserSubscribe struct {
 	OrderId                int64     `json:"order_id"`
 	SubscribeId            int64     `json:"subscribe_id"`
 	Subscribe              Subscribe `json:"subscribe"`
+	NodeGroupId            int64     `json:"node_group_id"`
+	NodeGroupName          string    `json:"node_group_name"`
 	StartTime              int64     `json:"start_time"`
 	ExpireTime             int64     `json:"expire_time"`
 	FinishedAt             int64     `json:"finished_at"`
@@ -3285,6 +3287,7 @@ type UserSubscribeDetail struct {
 	SubscribeId    int64     `json:"subscribe_id"`
 	Subscribe      Subscribe `json:"subscribe"`
 	NodeGroupId    int64     `json:"node_group_id"`
+	NodeGroupName  string    `json:"node_group_name"`
 	GroupLocked    bool      `json:"group_locked"`
 	StartTime      int64     `json:"start_time"`
 	ExpireTime     int64     `json:"expire_time"`
@@ -3297,6 +3300,8 @@ type UserSubscribeDetail struct {
 	EffectiveSpeed int64     `json:"effective_speed"`
 	IsThrottled    bool      `json:"is_throttled"`
 	ThrottleRule   string    `json:"throttle_rule,omitempty"`
+	ThrottleStart  int64     `json:"throttle_start,omitempty"`
+	ThrottleEnd    int64     `json:"throttle_end,omitempty"`
 	CreatedAt      int64     `json:"created_at"`
 	UpdatedAt      int64     `json:"updated_at"`
 }

pkg/speedlimit/calculator.go

@@ -24,6 +24,8 @@ type ThrottleResult struct {
 	IsThrottled    bool    `json:"is_throttled"`     // Whether the user is currently throttled
 	ThrottleRule   string  `json:"throttle_rule"`    // Description of the matched rule (empty if not throttled)
 	UsedTrafficGB  float64 `json:"used_traffic_gb"`  // Traffic used in the matched rule's window (GB)
+	ThrottleStart  int64   `json:"throttle_start"`   // Window start Unix timestamp (seconds), 0 if not throttled
+	ThrottleEnd    int64   `json:"throttle_end"`     // Window end Unix timestamp (seconds), 0 if not throttled
 }
 
 // Calculate computes the effective speed limit for a user subscription,
@@ -89,6 +91,8 @@ func Calculate(ctx context.Context, db *gorm.DB, userId, subscribeId, baseSpeedL
 					result.EffectiveSpeed = rule.SpeedLimit
 					result.IsThrottled = true
 					result.UsedTrafficGB = usedGB
+					result.ThrottleStart = startTime.Unix()
+					result.ThrottleEnd = now.Unix()
 
 					statLabel := "小时"
 					if rule.StatType == "day" {