feat(ticket): add global ticket assignment page

src/app/(modules)/ticket/[ticketId]/components/TicketDetailHeader.tsx

@@ -4,12 +4,18 @@ import { ArrowLeft } from 'lucide-react';
 import { useRouter } from 'next/navigation';
 
 import { Button } from '@/components/ui/button';
+import { PERMISSIONS } from '@/constants/permissions';
+import { PermissionGuard } from '@/guards';
 import type { TicketOverviewDetail } from '@/types';
 
+import { AssignTicketAction } from './actions/AssignTicketAction';
+
 export function TicketDetailHeader({
   ticket,
+  canAssign = false,
 }: {
   ticket: TicketOverviewDetail;
+  canAssign?: boolean;
 }) {
   const router = useRouter();
   const ticketLabel = ticket.ticket_name || ticket.id;
@@ -22,10 +28,12 @@ export function TicketDetailHeader({
       </div>
 
       <div className="flex shrink-0 items-center gap-2">
-        <Button
-          variant="secondary"
-          onClick={() => router.push('/ticket')}
-        >
+        {canAssign ? (
+          <PermissionGuard permissions={PERMISSIONS.TICKET.ASSIGN}>
+            <AssignTicketAction ticketId={ticket.id} />
+          </PermissionGuard>
+        ) : null}
+        <Button variant="secondary" onClick={() => router.push('/ticket')}>
           <ArrowLeft className="size-4" />
           Back to List
         </Button>