AI Frontend Application Development

I need to develop a frontend application with the following specifications:

Pages Required:
1. [LIST KEY PAGES AND THEIR PRIMARY FUNCTIONALITY]

User Roles and Permissions:
2. [DEFINE WHO CAN DO WHAT IN THE SYSTEM]

Shared Components:
3. Navigation System: [DESCRIBE NAVIGATION APPROACH: Sidebar, Top nav, etc.]
4. Header/Top Bar: [DESCRIBE COMMON ELEMENTS: user info, theme toggle, etc.]
5. Breadcrumbs (if needed for hierarchical navigation)

Modals/Popups:
6. [LIST MAIN INTERACTIVE ELEMENTS THAT APPEAR AS OVERLAYS]

Technical Requirements:
7. Use [SPECIFY CSS FRAMEWORK] for styling
8. Focus on component reusability
9. Implement (URL-based routing for all pages
10. Create proper hooks and services for API data handling
11. Develop a mock API store with realistic data structure (including IDs)
12. Ensure the application is fully functional end-to-end

Additional Considerations:
13. [ANY SPECIFIC TECHNICAL OR UX REQUIREMENTS]

Please develop this application with clean, maintainable code and intuitive user experience.