first commit

backend/F9WebAiTest.Domain/Entities/RefreshToken.cs

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+using FreeSql.DataAnnotations;
+using F9WebAiTest.Domain.Common;
+
+namespace F9WebAiTest.Domain.Entities;
+
+/// <summary>刷新令牌</summary>
+[Table(Name = "RefreshTokens")]
+public class RefreshToken : BaseEntity
+{
+    public long EmployeeId { get; set; }
+    public string Token { get; set; }
+    public DateTime ExpiresAt { get; set; }
+    public bool IsRevoked { get; set; }
+    public string CreatedByIp { get; set; } = "";
+}