- Resolve SSR error "useAuthentik is not defined"
- Follow Nuxt 4 directory structure conventions
- When app/ exists, all app directories must be inside it
- This enables proper auto-import of composables
- Create useAuthentik composable to read headers
- Add UserAvatar component with avatar and user info
- Add StatusBadges for auth/connection status
- Add ActionButtons for logout and profile
- Add UserMetadata component with full user details
- Integrate all components in main page
- Use Nuxt UI components throughout