- CloudFolderRenderedFlow.test.js: mock store uses Vue refs so folderFreshness propagates
reactively to StorageBrowser via CloudFolderView's template binding (D-12 GREEN)
- setBrowseState in mock now updates _mockFolderFreshness so cloud-health-banner appears
when API returns warning freshness (T-13-30 mitigated)
- Added testCloudConnection to API mock so D-13 no-probe assertion can verify it was not called
- beforeEach resets reactive refs for test isolation
- 11 rendered-flow tests pass; 70 total across health/store/view/rendered-flow suites