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

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

@@ -22,7 +22,7 @@ beforeEach(() => {
 afterEach(() => { cleanup(); vi.useRealTimers(); });
 async function open() {
   render(<CloudKnowledgePanel slug="ml-agent" 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'));
   await screen.findByRole('option', { name: '资料' });
   fireEvent.change(screen.getByLabelText('管理的知识库'), { target: { value: 'kb' } });
 }