fix 网格增加最大用户数设置

Src/Dlhis.Basic/WorkGrids/Request/WorkGridSaveRequest.cs

@@ -19,4 +19,11 @@ public class WorkGridSaveRequest
     /// 备注
     /// </summary>
     public string Remark { get; set; }
+    
+    
+    /// <summary>
+    /// 最大用户数
+    /// </summary>
+    [Range(1, int.MaxValue, ErrorMessage = "请设置最大用户数")]
+    public int MaxUserCount { get; set; }
 }