Final code review, testing, and merge to main branch. ## Tasks - [ ] Perform code review against CONTRIBUTING.md standards - [ ] Verify no lint or TypeScript errors - [ ] Run full Cypress test suite - [ ] Manual QA on fresh install - [ ] Test all 5 tabs and validation - [ ] Test first-run redirect flow - [ ] Verify backward compatibility - [ ] Merge to main branch - [ ] Update issue with completion notes ## Reference CONTRIBUTING.md PR Guidelines ## Parent Issue #8190