'use strict'; module.exports = { up: async (queryInterface, Sequelize) => { await queryInterface.changeColumn('drone_detections', 'drone_id', { type: Sequelize.BIGINT, allowNull: false, defaultValue: 999999, comment: 'Detected drone identifier (BIGINT for large IDs)' }); }, down: async (queryInterface, Sequelize) => { await queryInterface.changeColumn('drone_detections', 'drone_id', { type: Sequelize.INTEGER, allowNull: false, defaultValue: 999999, comment: 'Detected drone identifier' }); } };