feat(agents): add grouped knowledge selection and personal uploads

tests/unit/cloud-knowledge-catalog.test.tsx

@@ -13,7 +13,7 @@ afterEach(cleanup);
 
 function openCreation() {
   render(<CloudKnowledgePanel slug={slug} onCreated={() => undefined} />);
-  fireEvent.click(screen.getByText('管理我的知识文档'));
+  fireEvent.click(screen.getByText('上传自己的文件'));
   fireEvent.click(screen.getByRole('button', { name: '新建知识库' }));
 }