refactor: implement centralized cache key management and add utility traits for vCenter SSH operations.

powershell/assignIPLinux.ps1

@@ -5,6 +5,7 @@ param(
 
   [string]$VMName,
   [string]$IP,
+  [int]$MaskBits,
   [string]$Gateway,
   [string]$DNS,
 
@@ -43,7 +44,7 @@ try {
   # ✅ CHANGE IP (clean)
   $script = @"
 ip addr flush dev $iface
-ip addr add $IP/24 dev $iface
+ip addr add $IP/$MaskBits dev $iface
 ip route replace default via $Gateway
 echo "nameserver $DNS" > /etc/resolv.conf
 "@