- Add Markdown/Raw rendering toggle support to DocumentsView and TaskDocumentsTab for consistent document preview behavior
- Reuse workflow-style toggle UX and markdown CSS patterns to align with existing dashboard design conventions
- Add comprehensive tests for DocumentsView and TaskDocumentsTab toggle interactions and rendering states
- Update dashboard guide documentation to describe the new Markdown/Raw toggle behavior
- Add markOnboardingCompleted() to set completedAt timestamp when user finishes onboarding
- Add isOnboardingCompleted() to check if onboarding was completed (vs dismissed)
- Update ModelOnboardingModal to call markOnboardingCompleted on successful completion
- Skip onboarding auto-open when already completed locally
- Add completion state tracking tests in ModelOnboardingModal.test.tsx
- Add model-onboarding-state unit tests
- Update useAuthOnboarding to check local completion state before auto-opening
- Document localStorage completion state tracking pattern in .fusion/memory.md
