refactor: 重构勋章模块，拆分规则独立管理，优化期刊绑定逻辑

1.  新增MedalRule实体类，将勋章条件拆分独立为规则管理
2.  重构Medal相关服务和DTO，支持勋章规则的增删改查
3.  简化Journal绑定逻辑，移除冗余的实例化期刊校验和字段
4.  重命名部分实体类，统一命名前缀
5.  为勋章相关操作添加事务管理，优化异常处理逻辑

QYZH.InteractiveMagazine.Models/Entity/MedalRule.cs

@@ -0,0 +1,101 @@
+using System;
+using System.Linq;
+using System.Text;
+using SqlSugar;
+
+namespace QYZH.InteractiveMagazine.Models.Entity
+{
+    ///<summary>
+    ///勋章获取规则配置表
+    ///</summary>
+    [SugarTable("MedalRule")]
+    public partial class MedalRule : SqlSugarBaseEntity
+    {
+
+           /// <summary>
+           /// Desc:关联的勋章ID
+           /// Default:
+           /// Nullable:False
+           /// </summary>           
+           public long MedalId {get;set;}
+
+           /// <summary>
+           /// Desc:目标表名（如：JournalPageTask、UserAction等）
+           /// Default:
+           /// Nullable:False
+           /// </summary>           
+           public string TargetTable {get;set;}
+
+           /// <summary>
+           /// Desc:目标字段名（如：TotalScore、LoginDays等）
+           /// Default:
+           /// Nullable:False
+           /// </summary>           
+           public string TargetField {get;set;}
+
+           /// <summary>
+           /// Desc:比较运算符: >=, >, =, <=, <
+           /// Default:>=
+           /// Nullable:False
+           /// </summary>           
+           public string Operator {get;set;}
+
+           /// <summary>
+           /// Desc:阈值数量
+           /// Default:
+           /// Nullable:False
+           /// </summary>           
+           public int ThresholdValue {get;set;}
+
+           /// <summary>
+           /// Desc:额外筛选条件（JSON格式，如：{"Type": 1, "Status": 2}）
+           /// Default:
+           /// Nullable:True
+           /// </summary>           
+           public string FilterCondition {get;set;}
+
+           /// <summary>
+           /// Desc:时间范围类型: All/CurrentMonth/CurrentWeek/Last7Days/Custom
+           /// Default:
+           /// Nullable:True
+           /// </summary>           
+           public string DateRangeType {get;set;}
+
+           /// <summary>
+           /// Desc:自定义起始时间
+           /// Default:
+           /// Nullable:True
+           /// </summary>           
+           public DateTime? DateRangeStart {get;set;}
+
+           /// <summary>
+           /// Desc:自定义结束时间
+           /// Default:
+           /// Nullable:True
+           /// </summary>           
+           public DateTime? DateRangeEnd {get;set;}
+
+           /// <summary>
+           /// Desc:多规则间的逻辑关系: AND/OR
+           /// Default:AND
+           /// Nullable:False
+           /// </summary>           
+           public string LogicOperator {get;set;}
+
+           /// <summary>
+           /// Desc:规则执行顺序（多个规则时生效）
+           /// Default:0
+           /// Nullable:False
+           /// </summary>           
+           public int RuleOrder {get;set;}
+
+           /// <summary>
+           /// Desc:规则说明
+           /// Default:
+           /// Nullable:True
+           /// </summary>           
+           public string Description {get;set;}
+
+
+    }
+}