CREATE TABLE IF NOT EXISTS `wallet_recharge_orders` (
  `id` INT AUTO_INCREMENT PRIMARY KEY,
  `order_id` VARCHAR(64) NOT NULL,
  `user_id` INT NOT NULL,
  `amount` DECIMAL(10,2) NOT NULL,
  `customer_mobile` VARCHAR(15) NOT NULL,
  `status` ENUM('PENDING','COMPLETED','FAILED') NOT NULL DEFAULT 'PENDING',
  `utr` VARCHAR(64) DEFAULT NULL,
  `gateway_response` TEXT DEFAULT NULL,
  `created_at` DATETIME DEFAULT CURRENT_TIMESTAMP,
  `updated_at` DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  UNIQUE KEY `uniq_order_id` (`order_id`),
  KEY `idx_user_id` (`user_id`),
  KEY `idx_status` (`status`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;