签到与活动配置：后台配置接口、用户签到流程、UserEntity 扩展

UserSrc/UserDomain/Entity/UserEntity.cs

@@ -1,4 +1,4 @@
-using System.ComponentModel.DataAnnotations.Schema;
+using System.ComponentModel.DataAnnotations.Schema;
 using Common.Utils;
 using CommonDomain;
 using CommonDomain.BaseModel;
@@ -201,6 +201,9 @@ namespace UserDomain.Entity
     {
         public bool IsSign { get; set; } = false;
         public long SignTime { get; set; } = 0;
+
+        /// <summary>当前已签到的周期天数(0=未开始，1~7)</summary>
+        public int SignDay { get; set; } = 0;
     }
     [BsonIgnoreExtraElements]
     public class PlayerFactor