axe a11y 审计扩展到最复杂认证路径：注册页开启人机验证（CapWidget 自动求解→已通过状态 + 完整表单），mock getCapToken 避免 jsdom 无 Worker 环境限制。零违规。vitest 120→121 全绿。

Result: {"status":"keep","total_issues":8,"golint_canonicalheader":0,"golint_errname":0,"golint_errorlint":1,"golint_exhaustive":0,"golint_forcetypeassert":0,"golint_gosec":0,"golint_intrange":0,"golint_modernize":3,"golint_nilnil":3,"golint_perfsprint":0,"golint_prealloc":0,"golint_recvcheck":1,"golint_usestdlibvars":0,"golint_wastedassign":0,"golint_total":8,"golint_test_testifylint":0,"golint_test_thelper":0,"golint_test_usetesting":0,"golint_test_total":0,"golint_vetx_total":0,"eslint_problems":0,"eslint_errors":0,"eslint_warnings":0,"tsc_errors":0,"vitest_failed":0,"vitest_total":121,"measure_s":71}

frontend/tests/a11y.test.tsx

@@ -35,6 +35,10 @@ vi.mock('@/lib/services/auth', async (importOriginal) => {
   };
 });
 
+vi.mock('@/lib/cap-solver', () => ({
+  getCapToken: vi.fn().mockResolvedValue('test-cap-token'),
+}));
+
 vi.mock('@/lib/services/config', async (importOriginal) => {
   const actual = await importOriginal<typeof import('@/lib/services/config')>();
   return {
@@ -128,4 +132,19 @@ describe('a11y（axe-core 结构性规则）', () => {
     await screen.findByRole('button');
     expect(await runAxe(document.body)).toEqual([]);
   });
+
+  it('注册页（开启人机验证）无 axe 违规', async () => {
+    getPublicConfigMock.mockResolvedValue({
+      registration_enabled: 'true',
+      password_register_enabled: 'true',
+      cap_login_enabled: 'true',
+      cap_auto_solve: 'true',
+    });
+    renderWithProviders(<RegisterPage />);
+
+    await screen.findByRole('button', { name: /创建账号|submit/ });
+    // CAPTCHA 自动求解完成后进入已通过状态
+    await screen.findByText('人机验证通过');
+    expect(await runAxe(document.body)).toEqual([]);
+  });
 });