Fifth slice of TRUST_SCORE.md. useNetworkAlerts reads the viewer's NIP-85
assertions for the accounts they follow and surfaces those trusted people
reported or muted. New /alerts page lists them with Ignore / Unfollow /
Mute / Report (reusing useFollowActions, useMuteUser, ReportDialog) —
inform, never auto-act. Settings -> Trust links to it with a live count;
ignored accounts are device-local. /alerts added to the smoke list.
