[SCR-8] Merge upstream PR #822: Add per-device notification mute controls #4
Description
Summary
Merge the feature that enables muting/unmuting notifications on a per-device basis.
Why
Allows users to silence alerts for known-problematic drives without disabling all notifications.
Upstream PR
Acceptance Criteria
- PR merged cleanly
- UI shows mute toggle per device
- Muted devices don't trigger notifications
- Setting persists across restarts
Linear: SCR-8
Sprint: Sprint 2: Merge Upstream PRs