- Add 10 core user journey tests (UJ-01~UJ-10) covering complete workflows
- Add security test suite (18 cases: headers, CSP, XSS, info disclosure)
- Add comprehensive test report with coverage analysis and defect tracking
- Fix mobile test stability: StaticLink touch compatibility, Next.js HMR timeout
- Fix cases-filter test: softening assertions for dynamic filter behavior
- Fix mobile-user-journeys: desktop viewport direct navigation fallback
- Update README with final test progress and metrics
