alert method
Logs message as an alert. Works like log, but the serverpod CLI
shows it as a copyable alert in its terminal UI. Wrap a copyable segment
in angle brackets, e.g. 'Code: <123456>'. Other log destinations treat
it as a regular log message.
Implementation
void alert(String message, {LogLevel? level}) {
log(message, level: level, metadata: {'alert': true});
}