# Issue: Implement comprehensive RBAC documentation and testing

## Description
The project needs comprehensive documentation and testing for the Role-Based Access Control (RBAC) system that has been implemented. This includes:

1. Detailed documentation of the role-based access control system in the project's documentation
2. Comprehensive unit tests for the middleware functions
3. Integration tests to verify proper access control behavior

## Acceptance Criteria
- [ ] Documentation of roles and permissions is complete and up-to-date
- [ ] Unit tests cover all middleware functionality
- [ ] Integration tests verify access control behavior
- [ ] All tests pass successfully
- [ ] Documentation is consistent with implementation

## Tasks
1. Create comprehensive documentation for the RBAC system
2. Add unit tests for the requireRole middleware
3. Add integration tests for access control
4. Verify all tests pass
5. Update project documentation

## Notes
This issue follows up on the existing RBAC implementation and focuses on ensuring proper testing and documentation.