Fix jwt-token

server/migrations/20250912000001-add-multi-tenant-support.js

@@ -250,8 +250,16 @@ module.exports = {
       }
     }
 
-    // Create default tenant for backward compatibility
+    // Create default tenant for backward compatibility (only if it doesn't exist)
-    const defaultTenantId = await queryInterface.bulkInsert('tenants', [{
+    const [existingTenant] = await queryInterface.sequelize.query(
+      'SELECT id FROM tenants WHERE slug = \'default\' LIMIT 1',
+      { type: Sequelize.QueryTypes.SELECT }
+    );
+
+    let defaultTenantId;
+    if (!existingTenant) {
+      console.log('🏢 Creating default tenant...');
+      defaultTenantId = await queryInterface.bulkInsert('tenants', [{
         id: Sequelize.literal('gen_random_uuid()'),
         name: 'Default Organization',
         slug: 'default',
@@ -268,6 +276,10 @@ module.exports = {
         created_at: new Date(),
         updated_at: new Date()
       }], { returning: true });
+    } else {
+      console.log('⚠️  Default tenant already exists, skipping...');
+      defaultTenantId = existingTenant.id;
+    }
 
     // Associate existing users with default tenant
     await queryInterface.sequelize.query(`