CREATE TABLE `bank_transfer_requests` (
  `id` INT UNSIGNED NOT NULL AUTO_INCREMENT,
  `seller_id` INT UNSIGNED NOT NULL,
  `plan_id` INT UNSIGNED NOT NULL,
  `amount` DECIMAL(10,2) NOT NULL,
  `status` ENUM('pending','confirmed','rejected') NOT NULL DEFAULT 'pending',
  `created_at` DATETIME DEFAULT CURRENT_TIMESTAMP,
  `resolved_at` DATETIME DEFAULT NULL,
  `resolved_by` INT UNSIGNED DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `seller_id` (`seller_id`),
  KEY `plan_id` (`plan_id`),
  KEY `status` (`status`),
  CONSTRAINT `btr_seller_fk` FOREIGN KEY (`seller_id`) REFERENCES `users` (`id`),
  CONSTRAINT `btr_plan_fk` FOREIGN KEY (`plan_id`) REFERENCES `plans` (`id`),
  CONSTRAINT `btr_admin_fk` FOREIGN KEY (`resolved_by`) REFERENCES `users` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb3;