- Vue Router 4 with navigation guards and dynamic route loading
- Pinia stores for user, permission, and app state management
- Axios API layer with request/response interceptors
- Permission control (v-hasPermi, v-hasRole directives)
- Utility functions (auth, validate, permission)
- Layout component with sidebar, navbar, and breadcrumbs
- Error pages (401, 404) and redirect view
- Login API integration with user store