库存使用物品添加使用次数参数；添加了用户名引用和报价状态常量

Entity/Item/Item.cs

@@ -324,11 +324,11 @@ namespace Milimoe.FunGame.Core.Entity
         /// 局外（库存）使用物品触发
         /// </summary>
         /// <returns></returns>
-        public bool UseItem(User user, Dictionary<string, object> args)
+        public bool UseItem(User user, int times, Dictionary<string, object> args)
         {
             if (User != null)
             {
-                bool result = OnItemUsed(user, args);
+                bool result = OnItemUsed(user, times, args);
                 if (result)
                 {
                     EntityState = EntityState.Modified;
@@ -342,11 +342,11 @@ namespace Milimoe.FunGame.Core.Entity
         /// <summary>
         /// 使用后减少使用次数或删除物品
         /// </summary>
-        public void ReduceTimesAndRemove()
+        public void ReduceTimesAndRemove(int times = 1)
         {
             if (IsReduceTimesAfterUse)
             {
-                RemainUseTimes--;
+                RemainUseTimes -= times;
             }
             if (RemainUseTimes < 0) RemainUseTimes = 0;
             if (IsRemoveAfterUse && RemainUseTimes == 0)
@@ -371,9 +371,10 @@ namespace Milimoe.FunGame.Core.Entity
         /// 当物品被玩家使用时
         /// </summary>
         /// <param name="user"></param>
+        /// <param name="times"></param>
         /// <param name="args"></param>
         /// <returns></returns>
-        protected virtual bool OnItemUsed(User user, Dictionary<string, object> args)
+        protected virtual bool OnItemUsed(User user, int times, Dictionary<string, object> args)
         {
             return false;
         }

Entity/User/User.cs

@@ -7,6 +7,7 @@ namespace Milimoe.FunGame.Core.Entity
     public class User : BaseEntity
     {
         public static readonly User Empty = new();
+        public override string Name => Username;
         public string Username { get; set; } = "";
         public DateTime RegTime { get; set; }
         public DateTime LastTime { get; set; }

Library/Constant/ConstantSet.cs

@@ -43,6 +43,25 @@ namespace Milimoe.FunGame.Core.Library.Constant
                 _ => "已结束"
             };
         }
+
+        public static string GetOfferStatus(OfferState status)
+        {
+            return status switch
+            {
+                OfferState.Created => "已创建",
+                OfferState.Cancelled => "已取消",
+                OfferState.PendingOfferorConfirmation => "等待发起方确认",
+                OfferState.PendingOffereeConfirmation => "等待接收方确认",
+                OfferState.OfferorConfirmed => "发起方已确认",
+                OfferState.OffereeConfirmed => "接收方已确认",
+                OfferState.Sent => "已发送",
+                OfferState.Negotiating => "协商中",
+                OfferState.NegotiationAccepted => "协商已接受",
+                OfferState.Rejected => "已拒绝",
+                OfferState.Completed => "已完成",
+                _ => "已过期"
+            };
+        }
     }
 
     /// <summary>