feat(07.1-05): user-tz on dashboard, quotes, veeam-analysis

- dashboard/page.tsx: thread tz into PageHeader description's
  toLocaleDateString call.
- quotes/page.tsx: thread tz into formatDate arrow helper inside the
  default export.
- veeam-analysis/page.tsx: thread tz into the summary footer's
  generated-at toLocaleString call.

Migrates 3 of 81 audit leak callsites.

app/quotes/page.tsx

@@ -23,6 +23,7 @@ import {
   TableHeader,
   TableRow,
 } from '@/components/ui/table';
+import { useUserTimezone } from '@/lib/hooks/use-user-timezone';
 import { TicketDetailModal } from '@/components/quotes/ticket-detail-modal';
 
 interface Quote {
@@ -49,6 +50,7 @@ interface Quote {
 }
 
 export default function QuotesPage() {
+  const tz = useUserTimezone();
   const [quotes, setQuotes] = useState<Quote[]>([]);
   const [loading, setLoading] = useState(true);
   const [error, setError] = useState<string | null>(null);
@@ -108,6 +110,7 @@ export default function QuotesPage() {
       year: 'numeric',
       month: 'short',
       day: 'numeric',
+      timeZone: tz,
     });
   };