pub fn compute_routing(
root: &Path,
config: &ResolvedConfig,
changed_files: &FxHashSet<PathBuf>,
) -> RoutingFactsExpand description
Compute the routing section for the changed files. Best-effort: returns an
empty RoutingFacts when churn is unavailable (non-git repo, shallow clone
with no history). CODEOWNERS is consulted when present.