fix: Add network configuration to install.sh

- Create /etc/systemd/nspawn/aios.nspawn during installation
- Set Network Private=no to share host network
- Allows claude to connect to api.anthropic.com
- Fixes EAI_AGAIN network error

cfg/install.sh

@@ -11,6 +11,17 @@ tar xf "$TARBALL"
 mkdir -p /var/lib/machines
 mv root.x86_64 /var/lib/machines/$NAME
 
+# Create aios.nspawn for network access
+echo "Creating network configuration..."
+mkdir -p /etc/systemd/nspawn
+cat > /etc/systemd/nspawn/$NAME.nspawn <<'EOF'
+[Exec]
+Boot=yes
+
+[Network]
+Private=no
+EOF
+
 echo "=== Installation complete ==="
 echo ""
 echo "Usage:"