合并后台安全字段初始化迁移

backend/migrations/000002_admin_security.sql

@@ -1,19 +0,0 @@
--- +goose Up
--- +goose StatementBegin
-ALTER TABLE admin_users
-  ADD COLUMN IF NOT EXISTS token_version BIGINT NOT NULL DEFAULT 1 COMMENT '后台凭证版本，递增后旧 token 失效'
-  AFTER support_status;
-
-ALTER TABLE admin_users
-  ADD COLUMN IF NOT EXISTS password_must_change TINYINT(1) NOT NULL DEFAULT 0 COMMENT '是否必须先修改密码'
-  AFTER token_version;
--- +goose StatementEnd
-
--- +goose Down
--- +goose StatementBegin
-ALTER TABLE admin_users
-  DROP COLUMN IF EXISTS password_must_change;
-
-ALTER TABLE admin_users
-  DROP COLUMN IF EXISTS token_version;
--- +goose StatementEnd