add refresh token tables & entities

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

@@ -0,0 +1,35 @@
+package com.ddf.vodsystem.entities;
+
+import jakarta.persistence.*;
+import lombok.Data;
+
+import java.time.Instant;
+
+@Entity
+@Table(name = "refresh_tokens")
+@Data
+public class RefreshToken {
+    @Id
+    @Column(name = "id", nullable = false, unique = true)
+    private Long id;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "user_id", nullable = false)
+    private User user;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "family_id", nullable = false)
+    private TokenFamily tokenFamily;
+
+    @Column(name = "token_hash", unique = true, nullable = false)
+    private byte[] tokenHash;
+
+    @Column(name = "expires_at", nullable = false)
+    private Instant expiresAt;
+
+    @Column(name = "used_at")
+    private Instant usedAt;
+
+    @Column(name = "revoked_at")
+    private Instant revokedAt;
+}

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

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+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;
+}

src/main/resources/db/migrations/V2__refresh_tokens.sql

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+CREATE TABLE IF NOT EXISTS token_families
+(
+    id BIGSERIAL PRIMARY KEY NOT NULl,
+    user_id BIGSERIAL NOT NULL,
+    expires_at TIMESTAMPTZ NOT NULL,
+    revoked_at TIMESTAMPTZ,
+
+    FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
+);
+
+CREATE INDEX IF NOT EXISTS idx_token_families_user_id
+    ON token_families (user_id);
+
+CREATE TABLE IF NOT EXISTS refresh_tokens
+(
+    id BIGSERIAL PRIMARY KEY NOT NULL,
+    user_id BIGSERIAL NOT NULL,
+    family_id BIGSERIAL NOT NULL,
+    token_hash BYTEA NOT NULL,
+    expires_at TIMESTAMPTZ NOT NULL,
+    used_at TIMESTAMPTZ,
+    revoked_at TIMESTAMPTZ,
+
+    CONSTRAINT refresh_tokens_hash_len CHECK (octet_length(token_hash) = 32),
+
+    FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE,
+    FOREIGN KEY (family_id) REFERENCES token_families(id) ON DELETE CASCADE
+);
+
+CREATE INDEX IF NOT EXISTS idx_refresh_tokens_family_id
+    ON refresh_tokens (family_id);