功能添加

Repository/EmailMessageRepository.cs

@@ -2,11 +2,7 @@
 
 public interface IEmailMessageRepository : IBaseRepository<EmailMessage>
 {
-    Task<EmailMessage?> ExistsAsync(
-        string from,
-        string subject,
-        DateTime receivedDate,
-        string body);
+    Task<EmailMessage?> ExistsAsync(string md5);
     
     /// <summary>
     /// 分页获取邮件列表（游标分页）
@@ -25,14 +21,10 @@ public interface IEmailMessageRepository : IBaseRepository<EmailMessage>
 
 public class EmailMessageRepository(IFreeSql freeSql) : BaseRepository<EmailMessage>(freeSql), IEmailMessageRepository
 {
-    public async Task<EmailMessage?> ExistsAsync(
-        string from,
-        string subject,
-        DateTime receivedDate,
-        string body)
+    public async Task<EmailMessage?> ExistsAsync(string md5)
     {
         return await FreeSql.Select<EmailMessage>()
-            .Where(m => m.From == from && m.Subject == subject && m.ReceivedDate == receivedDate && m.Body == body)
+            .Where(e => e.Md5 == md5)
             .FirstAsync();
     }