初步完成邮件功能

DMS.Infrastructure/Entities/DbEmailAccount.cs

@@ -0,0 +1,89 @@
+using SqlSugar;
+using System.ComponentModel.DataAnnotations;
+
+namespace DMS.Infrastructure.Entities
+{
+    /// <summary>
+    /// 邮件账户数据库实体
+    /// </summary>
+    [SugarTable("email_accounts")]
+    public class DbEmailAccount
+    {
+        /// <summary>
+        /// 账户ID
+        /// </summary>
+        [SugarColumn(IsPrimaryKey = true, IsIdentity = true)]
+        public int Id { get; set; }
+
+        /// <summary>
+        /// 账户名称
+        /// </summary>
+        [SugarColumn(Length = 100)]
+        public string Name { get; set; }
+
+        /// <summary>
+        /// 邮箱地址
+        /// </summary>
+        [SugarColumn(Length = 255)]
+        public string EmailAddress { get; set; }
+
+        /// <summary>
+        /// SMTP服务器地址
+        /// </summary>
+        [SugarColumn(Length = 100)]
+        public string SmtpServer { get; set; }
+
+        /// <summary>
+        /// SMTP端口号
+        /// </summary>
+        public int SmtpPort { get; set; } = 587;
+
+        /// <summary>
+        /// 是否启用SSL
+        /// </summary>
+        public bool EnableSsl { get; set; } = true;
+
+        /// <summary>
+        /// 用户名
+        /// </summary>
+        [SugarColumn(Length = 100)]
+        public string Username { get; set; }
+
+        /// <summary>
+        /// 密码
+        /// </summary>
+        [SugarColumn(Length = 100)]
+        public string Password { get; set; }
+
+        /// <summary>
+        /// IMAP服务器地址
+        /// </summary>
+        [SugarColumn(Length = 100, IsNullable = true)]
+        public string? ImapServer { get; set; }
+
+        /// <summary>
+        /// IMAP端口号
+        /// </summary>
+        public int ImapPort { get; set; } = 993;
+
+        /// <summary>
+        /// 是否为默认账户
+        /// </summary>
+        public bool IsDefault { get; set; }
+
+        /// <summary>
+        /// 是否启用
+        /// </summary>
+        public bool IsActive { get; set; } = true;
+
+        /// <summary>
+        /// 创建时间
+        /// </summary>
+        public DateTime CreatedAt { get; set; } = DateTime.Now;
+
+        /// <summary>
+        /// 更新时间
+        /// </summary>
+        public DateTime UpdatedAt { get; set; } = DateTime.Now;
+    }
+}