CREATE TABLE IF NOT EXISTS users (
    id INT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    name VARCHAR(120) NOT NULL,
    email VARCHAR(190) NOT NULL,
    password_hash VARCHAR(255) NOT NULL,
    created_at DATETIME NOT NULL,
    UNIQUE KEY users_email_unique (email)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;