Fix Security Vulnerabilities: Dependabot Alerts and Code Scanning Findings

## Security Vulnerabilities to Fix

**Dependabot Alerts**: 30 open alerts
- Critical: 1
- High: Multiple
- Medium: Multiple
- Low: Multiple

**Code Scanning Findings**: 30 open findings

### Priority Actions
1. Fix critical vulnerabilities first
2. Address high severity issues
3. Update dependencies with security patches
4. Resolve code scanning findings

### Current Status
- [ ] Review all Dependabot alerts
- [ ] Fix critical vulnerabilities
- [ ] Fix high severity vulnerabilities
- [ ] Fix medium severity vulnerabilities
- [ ] Resolve code scanning findings
- [ ] Update dependencies
- [ ] Verify fixes

This issue tracks the systematic resolution of all security vulnerabilities in the repository.