accounts.lastlogin/logtime had no defaults and were NOT NULL, but the
auto-create-account INSERT never set them, so new accounts failed
under MariaDB strict mode (silently accepted under the old MySQL
5.0 target). Insert explicit empty/zero values and give lastlogin a
default; also widen it to varchar(32) to match the runtime.sql fix
already applied to the starttime column.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
