功能添加

Entity/EmailMessage.cs

@@ -1,4 +1,6 @@
-namespace Entity;
+using System.Security.Cryptography;
+
+namespace Entity;
 
 /// <summary>
 /// 邮件消息实体
@@ -29,4 +31,14 @@ public class EmailMessage : BaseEntity
     /// 邮件接收时间
     /// </summary>
     public DateTime ReceivedDate { get; set; }
+
+    public string Md5 { get; set; } = string.Empty;
+
+    public string ComputeBodyHash()
+    {
+        using var md5 = MD5.Create();
+        var inputBytes = System.Text.Encoding.UTF8.GetBytes(Body + HtmlBody);
+        var hashBytes = md5.ComputeHash(inputBytes);
+        return Convert.ToHexString(hashBytes);
+    }
 }

Entity/TransactionCategory.cs

@@ -1,7 +1,7 @@
 namespace Entity;
 
 /// <summary>
-/// 交易分类（层级结构：类型 -> 分类 -> 子分类）
+/// 交易分类
 /// </summary>
 public class TransactionCategory : BaseEntity
 {
@@ -10,38 +10,8 @@ public class TransactionCategory : BaseEntity
     /// </summary>
     public string Name { get; set; } = string.Empty;
 
-    /// <summary>
-    /// 父分类ID（0表示顶级分类）
-    /// </summary>
-    public long ParentId { get; set; }
-
     /// <summary>
     /// 交易类型（支出/收入）
     /// </summary>
     public TransactionType Type { get; set; }
-
-    /// <summary>
-    /// 层级（1=类型级, 2=分类级, 3=子分类级）
-    /// </summary>
-    public int Level { get; set; }
-
-    /// <summary>
-    /// 排序号
-    /// </summary>
-    public int SortOrder { get; set; }
-
-    /// <summary>
-    /// 图标（可选）
-    /// </summary>
-    public string? Icon { get; set; }
-
-    /// <summary>
-    /// 是否启用
-    /// </summary>
-    public bool IsEnabled { get; set; } = true;
-
-    /// <summary>
-    /// 备注
-    /// </summary>
-    public string? Remark { get; set; }
 }

Entity/TransactionRecord.cs

@@ -50,11 +50,6 @@ public class TransactionRecord : BaseEntity
     /// </summary>
     public string Classify { get; set; } = string.Empty;
 
-    /// <summary>
-    /// 交易子分类
-    /// </summary>
-    public string SubClassify { get; set; } = string.Empty;
-
     /// <summary>
     /// 导入编号
     /// </summary>