fix: isolate shared admin styling

src/components/admin/catalog/bulk-import-items.tsx

@@ -189,7 +189,7 @@ export function BulkImportItems({ pageId, onImported }: BulkImportItemsProps) {
                         <td className="px-2 py-0.5 font-mono">{row.pointsType ?? '—'}</td>
                         <td className="px-2 py-0.5">
                           {row.ok ? (
-                            <span className="text-[var(--color-success-text-readable)]">OK</span>
+                            <span className="text-[var(--admin-success)]">OK</span>
                           ) : (
                             <span className="text-destructive">{row.error}</span>
                           )}