New features:
- detect-system.sh: Automatically detects target system type
- Proxmox VE
- pfSense
- TrueNAS
- UCS
- Unknown/generic
- deploy-proxmox.sh: Automated Proxmox certificate deployment
- Backs up existing certificates
- Installs certificate to /etc/pve/local/pveproxy-ssl.*
- Restarts pveproxy service
- Fully automated deployment
- cert-manager.py enhancements:
- Detects system type before proceeding
- Uses system-specific deployment scripts when available
- Shows detected system type in summary
- Intelligent deployment based on system capabilities
- Manual deployment instructions for unsupported systems
