添加省份Id属性到多个DTO和实体类

在 `EnterExitCostDto.cs`、`Grp_EnterExitCost.cs` 和 `EnterExitCostView.cs` 文件中，新增了 `ProvinceId` 属性以表示省份Id，并添加了相应的 XML 注释和数据库列属性配置。

OASystem/OASystem.Domain/Dtos/Groups/EnterExitCostDto.cs

@@ -64,6 +64,11 @@ namespace OASystem.Domain.Dtos.Groups
         /// </summary>
         public int Id { get; set; }
 
+        /// <summary>
+        /// 省份Id
+        /// </summary>
+        public int ProvinceId { get; set; }
+
         /// <summary>
         /// 团组Id
         /// </summary>

OASystem/OASystem.Domain/Entities/Groups/Grp_EnterExitCost.cs

@@ -13,6 +13,12 @@ namespace OASystem.Domain.Entities.Groups
     [SugarTable("Grp_EnterExitCost")]
     public class Grp_EnterExitCost : EntityBase
     {
+        /// <summary>
+        /// 归属省份Id
+        /// </summary>
+        [SugarColumn(IsNullable = true, ColumnDataType = "int")]
+        public int ProvinceId { get; set; }
+
         /// <summary>
         /// 团组Id
         /// </summary>

OASystem/OASystem.Domain/ViewModels/Groups/EnterExitCostView.cs

@@ -244,6 +244,11 @@ namespace OASystem.Domain.ViewModels.Groups
         /// </summary>
         public int Id { get; set; }
 
+        /// <summary>
+        /// 归属省份Id
+        /// </summary>
+        public int ProvinceId { get; set; }
+
         /// <summary>
         /// 团组Id
         /// </summary>