feat(07.1-05): user-tz on shared client components

- DetailModal: thread tz through resolveLabel(...) module helper +
  default export's 3 inline date/time calls.
- IntegrationStatusTabs: thread tz through fmtDate helper +
  VeeamTab sub-component prop.
- SyncScheduler: thread tz into closure-scoped formatDate helper.
- audit-log-table, user-table, user-sessions, active-sessions: inline
  toLocale calls in component body.
- analysis-view: useUserTimezone in AnalysisView; thread tz into 4
  toLocaleString calls.
- resolution-trend, volume-trend (recharts): module-scope fmtDate(iso)
  → fmtDate(iso, tz); useUserTimezone in named export; thread tz into
  axis tickFormatter + tooltip labelFormatter.
- ticket-detail-modal: thread tz into formatDate arrow inside
  TicketDetailModal.
- TimelineView: useUserTimezone; thread tz into 4 toLocale*String calls
  (hour/day/month/event-time formatters).
- ScoreCard: useUserTimezone in AggregateScoreCard; thread tz into the
  date-range latest call.
- addigy-tab: useUserTimezone in AddigyTab; thread tz into 2 inline calls.
- activity-sparkline: module-scope fmtHour(iso) → fmtHour(iso, tz);
  useUserTimezone in ActivitySparkline; update 3 callsites in title/aria.
- compliance-detail-table: thread tz from ComplianceDetailTable into
  ContractCoverageModal sub-component (2 inline date calls).
- company-backup-detail: module-scope formatDate(d) → formatDate(d, tz);
  useUserTimezone in CompanyBackupDetail; update 3 callsites.

Migrates 31 of 81 audit leak callsites.

components/quotes/ticket-detail-modal.tsx

@@ -30,6 +30,7 @@ import {
   Mail,
   X,
 } from 'lucide-react';
+import { useUserTimezone } from '@/lib/hooks/use-user-timezone';
 
 // noteType values that are system/automated (workflow rules, monitoring, auto-close, etc.)
 const SYSTEM_NOTE_TYPES = new Set([13, 91, 93, 94, 99, 101]);
@@ -97,6 +98,7 @@ type TimelineItem =
   | { kind: 'time'; ts: number; data: any };
 
 export function TicketDetailModal({ ticketNumber, open, onOpenChange }: TicketDetailModalProps) {
+  const tz = useUserTimezone();
   const [ticket, setTicket] = useState<any>(null);
   const [loading, setLoading] = useState(false);
   const [error, setError] = useState<string | null>(null);
@@ -230,7 +232,7 @@ export function TicketDetailModal({ ticketNumber, open, onOpenChange }: TicketDe
     if (!dateString) return 'N/A';
     return new Date(dateString).toLocaleString('en-US', {
       month: 'short', day: 'numeric', year: 'numeric',
-      hour: '2-digit', minute: '2-digit',
+      hour: '2-digit', minute: '2-digit', timeZone: tz,
     });
   };