CREATE TABLE IF NOT EXISTS `coach_portfolio_items` (
    `id` INT AUTO_INCREMENT PRIMARY KEY,
    `coach_id` INT NOT NULL,
    `item_type` ENUM('image', 'video') NOT NULL,
    `url` VARCHAR(255) NOT NULL,
    `caption` VARCHAR(255),
    `created_at` TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    FOREIGN KEY (`coach_id`) REFERENCES `coaches`(`id`) ON DELETE CASCADE
);