add refresh token tables & entities

src/main/java/com/ddf/vodsystem/entities/TokenFamily.java

@@ -0,0 +1,25 @@
+package com.ddf.vodsystem.entities;
+
+import jakarta.persistence.*;
+import lombok.Data;
+
+import java.time.Instant;
+
+@Entity
+@Table(name = "token_families")
+@Data
+public class TokenFamily {
+    @Id
+    @Column(name = "id", nullable = false, unique = true)
+    private Long id;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "user_id", nullable = false)
+    private User user;
+
+    @Column(name = "expires_at", nullable = false)
+    private Instant expiresAt;
+
+    @Column(name = "revoked_at")
+    private Instant revokedAt;
+}