- Migrated all hooks: useAuth, useChat, useLogin
- Migrated all components: Header, ProfileForm, FollowButton, LikeButton, PlaylistFollowButton, ChatMessage, ChatMessages, CommentThread, CommentSection, PlaylistList, ChatSidebar, SettingsPage, DashboardPage
- Updated storeSelectors.ts useAuthUser() to use React Query
- All production code now uses useUser() hook instead of Zustand store
- Action 4.1.1.3 and 4.1.1.4 complete
- Added profile completion indicator with progress bar
- Added profile completion percentage and missing fields display
- Added social links management (Twitter, Instagram, Facebook, YouTube, Website)
- Improved bio editing with Textarea component and character counter
- Added social links display when not editing
- Added location field
- Updated UpdateProfileRequest interface to include social_links
- Integrated profile completion API endpoint
