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/admin/users/user-sessions.tsx

@@ -24,6 +24,7 @@ import {
   AlertDialogHeader,
   AlertDialogTitle,
 } from "@/components/ui/alert-dialog";
+import { useUserTimezone } from "@/lib/hooks/use-user-timezone";
 
 interface Session {
   id: string;
@@ -52,6 +53,7 @@ function parseUserAgent(ua: string): { device: string; browser: string } {
 }
 
 export function UserSessions({ sessions, userId }: UserSessionsProps) {
+  const tz = useUserTimezone();
   const router = useRouter();
   const [isLoading, setIsLoading] = useState(false);
   const [showRevokeAllDialog, setShowRevokeAllDialog] = useState(false);
@@ -158,10 +160,10 @@ export function UserSessions({ sessions, userId }: UserSessionsProps) {
                   </div>
                 </TableCell>
                 <TableCell className="text-muted-foreground">
-                  {new Date(session.created_at).toLocaleString()}
+                  {new Date(session.created_at).toLocaleString(undefined, { timeZone: tz })}
                 </TableCell>
                 <TableCell className="text-muted-foreground">
-                  {new Date(session.expires_at).toLocaleString()}
+                  {new Date(session.expires_at).toLocaleString(undefined, { timeZone: tz })}
                 </TableCell>
                 <TableCell>
                   <Button

components/admin/users/user-table.tsx

@@ -24,6 +24,7 @@ import { Badge } from "@/components/ui/badge";
 import { RoleBadge } from "./role-badge";
 import { UserActions } from "./user-actions";
 import { useSession } from "@/lib/auth-client";
+import { useUserTimezone } from "@/lib/hooks/use-user-timezone";
 
 interface User {
   id: string;
@@ -43,6 +44,7 @@ interface Pagination {
 }
 
 export function UserTable() {
+  const tz = useUserTimezone();
   const router = useRouter();
   const searchParams = useSearchParams();
   const { data: session } = useSession();
@@ -202,7 +204,7 @@ export function UserTable() {
                     )}
                   </TableCell>
                   <TableCell className="text-muted-foreground">
-                    {new Date(user.created_at).toLocaleDateString()}
+                    {new Date(user.created_at).toLocaleDateString(undefined, { timeZone: tz })}
                   </TableCell>
                   <TableCell>
                     <UserActions