Update user documentation and screenshots after Allure E2E tests pass.
Keeps docs in sync with tested features.
**Invoke when:**
- After E2E tests pass and need documentation updates
- Capturing UI screenshots for user manual
- Cross-referencing test coverage with documentation
- Updating feature descriptions after implementation
**Provides:**
- Screenshot capture workflow
- Doc-to-test mapping (QC-XXX → doc pages)
- Documentation update checklist
- Missing documentation detection