CREATE TABLE gallery_groups (
    id INT AUTO_INCREMENT PRIMARY KEY,
    settlement_id INT NOT NULL,
    name VARCHAR(255) NOT NULL,
    status ENUM('draft', 'scheduled', 'published') NOT NULL DEFAULT 'draft',
    publish_at DATETIME DEFAULT NULL,
    sort_order INT NOT NULL DEFAULT 0,
    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    INDEX idx_gallery_groups_settlement_status (settlement_id, status),
    CONSTRAINT fk_gallery_groups_settlement FOREIGN KEY (settlement_id) REFERENCES settlements(id) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;