ExpansionTile per aggregated quarantine row — collapsed shows track,
artist · album, and "{N} reports: {top reason}". Expanded reveals the
nested per-user reports with their reasons + optional notes.
Three-dot menu offers Resolve / Delete file / Delete via Lidarr; both
deletes route through TypedConfirmSheet which requires the user to
type "DELETE" before the action button enables.
Adds AdminQuarantineController with optimistic-removal + rollback,
mirroring AdminRequestsController's pattern.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
bvandeusen
3e905db906