fix: enforce semantic contrast across admin

src/app/admin/tickets/[id]/admin-ticket-detail.tsx

@@ -57,17 +57,17 @@ interface StaffMember {
 }
 
 const STATUS_COLORS: Record<string, string> = {
-  open: 'bg-blue-500/10 text-blue-500',
-  in_progress: 'bg-yellow-500/10 text-yellow-500',
-  waiting: 'bg-orange-500/10 text-orange-500',
+  open: 'bg-[var(--color-info-subtle)] text-[var(--color-info-text-readable)]',
+  in_progress: 'bg-[var(--color-warning-subtle)] text-[var(--color-warning-text-readable)]',
+  waiting: 'bg-[var(--color-warning-subtle)] text-[var(--color-warning-text-readable)]',
   closed: 'bg-muted text-muted-foreground',
 }
 
 const PRIORITY_COLORS: Record<string, string> = {
   low: 'text-muted-foreground',
-  normal: 'text-blue-500',
-  high: 'text-orange-500',
-  urgent: 'text-red-500',
+  normal: 'text-[var(--color-info-text-readable)]',
+  high: 'text-[var(--color-warning-text-readable)]',
+  urgent: 'text-[var(--color-error-text-readable)]',
 }
 
 export function AdminTicketDetail({