- Refactor to 3-step flow: hardware detection, mode selection, root directory
- Add step indicator 'Step N of 3'
- Add HardwareSummaryStep on step 1 with dynamic heading
- Add ModeSelector on step 2 with 'both' pre-selected
- Add Back buttons on steps 2 and 3
- Persist selected mode via updateNexusSettings on wizard completion
- Reset step and mode on wizard close
- Single-step wizard: root directory input only (no company name, mission, or first task)
- Creates workspace named VOCAB.appName (Nexus)
- Creates PM agent (role: ceo, for elevated permissions) + Engineer agent
- Navigates to dashboard after completion, not issue detail
- Preserves resolveRouteOnboardingOptions wizard-show detection logic
- Exports OnboardingWizard to match named import in App.tsx
- Original OnboardingWizard.tsx untouched for upstream rebase compatibility