IdleTimeoutManager, the BuildPrompt family, ChannelRelay, and
configloader.Watcher were forked into internal/office/service/ and
internal/orchestrator/watcher/ during the scheduler/→service/ refactor
but never removed from their original homes. All four types (and their
two same-package self-tests) had zero importers across the repo.
Co-authored-by: Kandev Agent <agent@kandev.dev>
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>