CREATE TABLE IF NOT EXISTS section_access (
    id INT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    section_key VARCHAR(50) NOT NULL,
    target_role ENUM('admin', 'driver') NOT NULL,
    can_access TINYINT(1) NOT NULL DEFAULT 0,
    updated_by INT UNSIGNED NULL,
    updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    UNIQUE KEY uq_section_role (section_key, target_role)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS section_locks (
    section_key VARCHAR(50) NOT NULL PRIMARY KEY,
    password_hash VARCHAR(255) NULL,
    updated_by INT UNSIGNED NULL,
    updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;