Add token version

src/main/java/com/petshop/backend/entity/User.java

@@ -37,6 +37,9 @@ public class User {
     @Column(nullable = false)
     private Boolean active = true;
 
+    @Column(nullable = false)
+    private Integer tokenVersion = 0;
+
     @CreationTimestamp
     @Column(name = "created_at", updatable = false)
     private LocalDateTime createdAt;
@@ -52,7 +55,7 @@ public class User {
     public User() {
     }
 
-    public User(Long id, String username, String password, String email, String fullName, String avatarUrl, Role role, Boolean active, LocalDateTime createdAt, LocalDateTime updatedAt) {
+    public User(Long id, String username, String password, String email, String fullName, String avatarUrl, Role role, Boolean active, Integer tokenVersion, LocalDateTime createdAt, LocalDateTime updatedAt) {
         this.id = id;
         this.username = username;
         this.password = password;
@@ -61,6 +64,7 @@ public class User {
         this.avatarUrl = avatarUrl;
         this.role = role;
         this.active = active;
+        this.tokenVersion = tokenVersion;
         this.createdAt = createdAt;
         this.updatedAt = updatedAt;
     }
@@ -129,6 +133,14 @@ public class User {
         this.active = active;
     }
 
+    public Integer getTokenVersion() {
+        return tokenVersion;
+    }
+
+    public void setTokenVersion(Integer tokenVersion) {
+        this.tokenVersion = tokenVersion;
+    }
+
     public LocalDateTime getCreatedAt() {
         return createdAt;
     }
@@ -169,6 +181,7 @@ public class User {
                 ", avatarUrl='" + avatarUrl + '\'' +
                 ", role=" + role +
                 ", active=" + active +
+                ", tokenVersion=" + tokenVersion +
                 ", createdAt=" + createdAt +
                 ", updatedAt=" + updatedAt +
                 '}';

src/main/resources/db/migration/V5__user_token_version.sql

@@ -0,0 +1,2 @@
+ALTER TABLE users
+    ADD COLUMN tokenVersion INT NOT NULL DEFAULT 0 AFTER active;

src/test/java/com/petshop/backend/config/RunConfigValidationTest.java

@@ -77,4 +77,19 @@ class RunConfigValidationTest {
         assertTrue(migrationContent.contains("active BOOLEAN") || migrationContent.contains("active boolean"),
             "Baseline migration should contain the users.active column definition.");
     }
+
+    @Test
+    void userTokenVersionMigrationExists() {
+        File migrationFile = new File("src/main/resources/db/migration/V5__user_token_version.sql");
+        assertTrue(migrationFile.exists(), "User tokenVersion migration should exist.");
+    }
+
+    @Test
+    void userTokenVersionMigrationAddsColumn() throws Exception {
+        File migrationFile = new File("src/main/resources/db/migration/V5__user_token_version.sql");
+        String migrationContent = new String(java.nio.file.Files.readAllBytes(migrationFile.toPath()));
+
+        assertTrue(migrationContent.contains("ADD COLUMN tokenVersion INT NOT NULL DEFAULT 0"),
+            "User tokenVersion migration should add the tokenVersion column with default 0.");
+    }
 }

src/test/java/com/petshop/backend/entity/UserEntityTest.java

@@ -0,0 +1,24 @@
+package com.petshop.backend.entity;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+class UserEntityTest {
+
+    @Test
+    void tokenVersionDefaultsToZero() {
+        User user = new User();
+
+        assertEquals(0, user.getTokenVersion());
+    }
+
+    @Test
+    void tokenVersionCanBeUpdated() {
+        User user = new User();
+
+        user.setTokenVersion(3);
+
+        assertEquals(3, user.getTokenVersion());
+    }
+}