End-to-End Testing

## Description
Comprehensive end-to-end testing of the complete application.

## Tasks
- [ ] Test full scan workflow
- [ ] Test all report formats
- [ ] Test error scenarios
- [ ] Performance testing
- [ ] Security testing review
- [ ] User acceptance testing
- [ ] Bug fixes from testing

## Deliverables
- Complete test results
- Bug fixes implemented
- Performance validated

**Target:** 2/21/26