-- 账号体系用户表（内部运营/编辑账号，不开放公开注册）。
-- 与 scripts/seed_users/main.go 中内置的建表语句保持一致。
CREATE TABLE IF NOT EXISTS `users` (
  `id`            int unsigned NOT NULL AUTO_INCREMENT,
  `created_at`    int unsigned NOT NULL DEFAULT 0,
  `updated_at`    int unsigned NOT NULL DEFAULT 0,
  `username`      varchar(64)  NOT NULL,
  `email`         varchar(191) NOT NULL,
  `password_hash` varchar(255) NOT NULL DEFAULT '',
  `is_deleted`    tinyint unsigned NOT NULL DEFAULT 0,
  PRIMARY KEY (`id`),
  UNIQUE KEY `uk_username` (`username`),
  UNIQUE KEY `uk_email` (`email`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;