CREATE TABLE IF NOT EXISTS `yz_auth_app_login_ticket` (
  `id`          BIGINT UNSIGNED NOT NULL AUTO_INCREMENT COMMENT '主键',
  `ticket`      VARCHAR(64)  NOT NULL DEFAULT '' COMMENT '一次性登录票据',
  `identity_id` BIGINT UNSIGNED NOT NULL DEFAULT 0 COMMENT '认证中心身份ID',
  `tid`         BIGINT UNSIGNED NOT NULL DEFAULT 0 COMMENT '租户ID（0=待选企业）',
  `client_id`   VARCHAR(64)  NOT NULL DEFAULT '' COMMENT '兑换方应用ID，默认 yz-backend',
  `expire_at`   DATETIME     NOT NULL COMMENT '过期时间',
  `used_at`     DATETIME     NULL DEFAULT NULL COMMENT '核销时间（一次性）',
  `create_time` DATETIME     NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  PRIMARY KEY (`id`),
  UNIQUE KEY `uk_ticket` (`ticket`),
  KEY `idx_expire_at` (`expire_at`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='统一认证-移动端免登录票据';