feat(shipping): 发货订单超过48小时不允许撤销

- 在cancel_shipping.go中添加48小时限制检查
- 在shipping_groups.go中返回created_at字段供前端判断
- 超过48小时的订单撤销时提示'需要撤销发货请联系客服'

internal/service/user/cancel_shipping.go

@@ -3,6 +3,7 @@ package user
 import (
 	"context"
 	"fmt"
+	"time"
 
 	"bindbox-game/internal/repository/mysql/dao"
 )
@@ -22,13 +23,15 @@ func (s *service) CancelShipping(ctx context.Context, userID int64, inventoryID
 			InventoryID int64
 			// 记录 shipping_record 中存储的实际 user_id，用于后续恢复 inventory
 			RecordUserID int64
+			// 记录创建时间，用于48小时限制检查
+			CreatedAt time.Time
 		}
 
 		// 根据参数查询待取消的发货记录
 		if batchNo != "" {
 			// 按批次号查询：仅允许取消属于自己的发货记录
 			rows, err := tx.ShippingRecords.WithContext(ctx).
-				Select(tx.ShippingRecords.ID, tx.ShippingRecords.InventoryID, tx.ShippingRecords.UserID).
+				Select(tx.ShippingRecords.ID, tx.ShippingRecords.InventoryID, tx.ShippingRecords.UserID, tx.ShippingRecords.CreatedAt).
 				Where(tx.ShippingRecords.BatchNo.Eq(batchNo)).
 				Where(tx.ShippingRecords.UserID.Eq(userID)).
 				Where(tx.ShippingRecords.Status.Eq(1)). // 待发货状态
@@ -41,7 +44,8 @@ func (s *service) CancelShipping(ctx context.Context, userID int64, inventoryID
 					ID           int64
 					InventoryID  int64
 					RecordUserID int64
-				}{ID: r.ID, InventoryID: r.InventoryID, RecordUserID: r.UserID})
+					CreatedAt    time.Time
+				}{ID: r.ID, InventoryID: r.InventoryID, RecordUserID: r.UserID, CreatedAt: r.CreatedAt})
 			}
 		} else if inventoryID > 0 {
 			// 按单个资产ID查询：先不过滤 user_id，取到记录后比对归属
@@ -61,13 +65,23 @@ func (s *service) CancelShipping(ctx context.Context, userID int64, inventoryID
 				ID           int64
 				InventoryID  int64
 				RecordUserID int64
-			}{ID: sr.ID, InventoryID: sr.InventoryID, RecordUserID: sr.UserID})
+				CreatedAt    time.Time
+			}{ID: sr.ID, InventoryID: sr.InventoryID, RecordUserID: sr.UserID, CreatedAt: sr.CreatedAt})
 		}
 
 		if len(records) == 0 {
 			return fmt.Errorf("no pending shipping records found")
 		}
 
+		// 检查48小时限制：发货申请超过48小时不允许撤销
+		const cancelWindow = 48 * time.Hour
+		now := time.Now()
+		for _, rec := range records {
+			if now.Sub(rec.CreatedAt) > cancelWindow {
+				return fmt.Errorf("发货申请超过48小时，不允许撤销，需要撤销发货请联系客服")
+			}
+		}
+
 		// 批量处理每条记录
 		for _, rec := range records {
 			// 1. 更新发货记录状态为已取消 (status=5)

internal/service/user/shipping_groups.go

@@ -22,6 +22,7 @@ type ShipmentGroup struct {
 	Count        int64         `json:"count"`
 	ShippedAt    *time.Time    `json:"shipped_at,omitempty"`
 	ReceivedAt   *time.Time    `json:"received_at,omitempty"`
+	CreatedAt    *time.Time    `json:"created_at,omitempty"` // 发货申请创建时间，用于前端判断48小时撤销限制
 	InventoryIDs []int64       `json:"inventory_ids"`
 	ProductIDs   []int64       `json:"product_ids"`
 	Products     []ProductInfo `json:"products"`
@@ -53,6 +54,7 @@ func (s *service) ListUserShipmentGroups(ctx context.Context, userID int64, page
 		status     int32
 		shippedAt  *time.Time
 		receivedAt *time.Time
+		createdAt  *time.Time // 最早的创建时间
 		inv        []int64
 		pid        []int64
 	}
@@ -90,6 +92,13 @@ func (s *service) ListUserShipmentGroups(ctx context.Context, userID int64, page
 			t := r.ReceivedAt
 			a.receivedAt = &t
 		}
+		// 记录最早的创建时间
+		if !r.CreatedAt.IsZero() {
+			if a.createdAt == nil || r.CreatedAt.Before(*a.createdAt) {
+				t := r.CreatedAt
+				a.createdAt = &t
+			}
+		}
 		a.inv = append(a.inv, r.InventoryID)
 		if r.ProductID > 0 {
 			a.pid = append(a.pid, r.ProductID)
@@ -126,6 +135,7 @@ func (s *service) ListUserShipmentGroups(ctx context.Context, userID int64, page
 			Count:        c,
 			ShippedAt:    a.shippedAt,
 			ReceivedAt:   a.receivedAt,
+			CreatedAt:    a.createdAt,
 			InventoryIDs: a.inv,
 			ProductIDs:   a.pid,
 			Products:     products,