CREATE TABLE IF NOT EXISTS `updates` (
    `id` bigint unsigned NOT NULL AUTO_INCREMENT,
    `version` varchar(255) NOT NULL,
    `title` varchar(255) NOT NULL,
    `description` text,
    `file_path` varchar(255) DEFAULT NULL,
    `file_hash` varchar(255) DEFAULT NULL,
    `file_size` bigint DEFAULT NULL,
    `status` enum('available','downloading','applying','applied','failed','rolled_back') NOT NULL DEFAULT 'available',
    `applied_at` timestamp NULL DEFAULT NULL,
    `rolled_back_at` timestamp NULL DEFAULT NULL,
    `error_message` text,
    `backup_path` varchar(255) DEFAULT NULL,
    `created_at` timestamp NULL DEFAULT NULL,
    `updated_at` timestamp NULL DEFAULT NULL,
    PRIMARY KEY (`id`),
    UNIQUE KEY `updates_version_unique` (`version`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;