// Copyright 2025 Umberto Gotti <umberto.gotti@umbertogotti.dev>
// Licensed under the MIT License
// SPDX-License-Identifier: MIT
// What a run concluded, kept separate from how the process reports it.
//
// Runner returns this rather than calling exit, so the whole run is reachable
// from a test. Only main turns it into an exit code, which is also the only
// place that needs to know 2 means "rule broken" rather than "tool failed".