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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>