a5ce49d635
Improvements: - When all network sources are unreachable, checks for offline options - Checks system package repositories (yum/apt) for Maldet availability - Scans common locations (/root, /tmp, /opt) for pre-downloaded archives - Provides clear multi-method installation instructions for offline scenarios - Gracefully handles network-isolated servers - Supports pre-downloaded archive transfer via SCP - Falls back to system repositories if network-free alternative available This allows installation on restricted networks where external downloads aren't possible.