CREATE TABLE IF NOT EXISTS `projects` (
    `id` INT(11) NOT NULL AUTO_INCREMENT,
    `company_id` INT(11) NOT NULL,
    `name` VARCHAR(255) NOT NULL,
    `description` TEXT DEFAULT NULL,
    `status` VARCHAR(50) DEFAULT 'active',
    `start_date` DATE DEFAULT NULL,
    `end_date` DATE DEFAULT NULL,
    `created_at` DATETIME DEFAULT CURRENT_TIMESTAMP,
    `updated_at` DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    PRIMARY KEY (`id`),
    UNIQUE KEY `name_company_id` (`name`, `company_id`),
    FOREIGN KEY (`company_id`) REFERENCES `companies`(`id`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;