fix: correct New-PveVm disk-options warning text

Now that -ScsiHardware is part of HasDiskOptions(), the old "options were
ignored" wording was misleading: scsihw is written unconditionally as a
VM-level key and is never ignored. Reword to state that the per-disk
options are the ones dropped, and that -ScsiHardware (if specified) is
still applied. Accurate whether or not -ScsiHardware was passed.

Addresses PR #67 follow-up review.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/PSProxmoxVE/Cmdlets/Vms/NewPveVmCmdlet.cs

@@ -242,9 +242,10 @@ namespace PSProxmoxVE.Cmdlets.Vms
             if (!string.IsNullOrEmpty(DiskStorage) && diskSizeGib != null)
                 config[$"{diskBus}0"] = BuildDiskSpec(DiskStorage!, diskSizeGib);
             else if (HasDiskOptions())
-                WriteWarning("Disk IO options (-DiskBus/-DiskIoThread/-DiskAio/-DiskSsd/-DiskDiscard/-DiskCache) "
-                    + "were specified but no disk is being created (-DiskStorage and -DiskSize are both required). "
-                    + "The options were ignored.");
+                WriteWarning("Disk options were specified but no disk is being created "
+                    + "(-DiskStorage and -DiskSize are both required). The per-disk options "
+                    + "(-DiskBus/-DiskIoThread/-DiskAio/-DiskSsd/-DiskDiscard/-DiskCache) were ignored; "
+                    + "-ScsiHardware, if specified, is still applied as the VM-level scsihw setting.");
 
             if (!string.IsNullOrEmpty(Bridge))
             {