feat(agent): implement agent detail page with canvas view and version history

src/pages/agent/list.tsx

@@ -16,6 +16,7 @@ import CreateAgentDialog from '@/pages/agent/components/CreateAgentDialog';
 import EditAgentDialog from '@/pages/agent/components/EditAgentDialog';
 import { useTranslation } from 'react-i18next';
 import { useDialog } from '@/hooks/useDialog';
+import { useNavigate } from 'react-router-dom';
 
 function AgentListPage() {
   const [searchValue, setSearchValue] = useState('');
@@ -34,6 +35,7 @@ function AgentListPage() {
   } = useAgentList({ page: 1, page_size: 10 });
 
   const { t } = useTranslation();
+  const navigate = useNavigate();
   const dialog = useDialog();
   const ops = useAgentOperations();
 
@@ -103,6 +105,9 @@ function AgentListPage() {
         searchTerm={searchValue}
         onCreateAgent={() => setCreateOpen(true)}
         onEdit={(agent) => { setEditTarget(agent); setEditOpen(true); }}
+        onView={(agent) => {
+          navigate(`/agent/${agent.id}`);
+        }}
         onDelete={async (agent) => {
           const confirmed = await dialog.confirm({
             title: t('dialog.confirmDelete'),