Updated public log boundary

Property	Value
description	Clarified unpublished-history handling for MAC Log and MAC Docs sync.
version	0.1.1
type	Update
related	MAC Log, MAC Docs

• Clarified that MAC Log remains public-only.
• Clarified that unpublished and maintainer-only product history must not be mirrored into MAC Log.
• Clarified the MAC Docs public-sync workflow for public release-history records.