CI / test (pull_request) Failing after 1m30s
- Fix ReadTimeout/WriteTimeout to use 5*time.Second instead of 5 (nanoseconds) - Add RootHints fallback in DiscoverRoots() when queryResolver fails - Validate --dns-upstream is a valid host:port in Config.Validate() - Update systemResolver() comment to note it is Unix-only (/etc/resolv.conf) Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Co-authored-by: multica-agent <github@multica.ai>