初步完成邮件功能

DMS.Core/Interfaces/Repositories/IEmailLogRepository.cs

@@ -0,0 +1,20 @@
+using DMS.Core.Models;
+
+namespace DMS.Core.Interfaces.Repositories
+{
+    /// <summary>
+    /// 邮件日志仓储接口
+    /// </summary>
+    public interface IEmailLogRepository : IBaseRepository<EmailLog>
+    {
+        /// <summary>
+        /// 根据邮件消息ID获取日志
+        /// </summary>
+        Task<List<EmailLog>> GetByEmailMessageIdAsync(int emailMessageId);
+
+        /// <summary>
+        /// 根据日期范围获取日志
+        /// </summary>
+        Task<List<EmailLog>> GetByDateRangeAsync(DateTime startDate, DateTime endDate);
+    }
+}