Notification categories

Category	Icon	Colour	Examples
Governance	Shield	Red/Amber	Check failures, score changes, expiring files
Team	Users	Blue	Invitations, role changes, members joining
System	Settings	Grey	Billing alerts, plan limits, security events
Announcements	Megaphone	Teal	New features, product updates, changelog

Delivery

Governance, team, and system notifications appear under the bell icon in the top bar. Announcements appear under a separate megaphone icon to prevent governance alerts from being drowned out by product updates.