noVNC clipboard does not send Turkish characters correctly on Windows VMs (CloudStack 4.22)

### problem

When using CloudStack 4.22 noVNC console, clipboard text containing Turkish characters is not transmitted correctly to Windows virtual machines.

"asdasdç"
Inside the Windows VM it appears corrupted:
"asdasd."

The issue only occurs with noVNC → Windows clipboard operations.
It does not occur on Linux VMs.
Typing manually sometimes works, but clipboard “Send” is consistently broken.

This suggests a missing or incorrect UTF-8 → Windows codepage conversion in the noVNC version included with the CloudStack 4.22 SystemVM.

### versions

CloudStack version: 4.22.0
System VM Template: systemvm64template 4.22 (fresh download)
Hypervisor: VMware ESXi 8.x
vCenter: 8.x
Browsers tested: Chrome, Firefox (same result)
Guest OS: Windows Server 2016 / 2019 / 2022 (all affected)

### The steps to reproduce the bug

1. Deploy a Windows VM in CloudStack 4.22
2. Open noVNC console → Clipboard
3. Paste the following UTF-8 text: "asdasdç"
4. Click Send Clipboard
5. Paste the text inside the Windows VM

Expected: Unicode characters should be transmitted correctly
Actual: Turkish characters appear corrupted or replaced with “?”

### What to do about it?

The noVNC version embedded in SystemVM may not properly handle UTF-8 clipboard transmission for Windows guests.
• CloudStack may need:
• An updated noVNC version inside the SystemVM
• A fix to clipboard handling for non-ASCII characters
• Unicode normalization before sending text to the RFB server

This issue appears similar to:
https://github.com/apache/cloudstack/issues/7335

Please investigate whether the current SystemVM noVNC build processes clipboard text incorrectly or lacks UTF-8 handling required for Windows VMs.

Commencez par le chemin du presse-papiers noVNC inclus dans la CloudStack 4.22 System VM et reproduisez le problème en utilisant le texte turc indiqué sur une VM Windows. Comparez le comportement avec les guests Linux et avec l’issue 7335 associée. Le travail est terminé lorsque clipboard Send conserve les caractères non ASCII dans les versions de Windows Server concernées.

Rédigé par le modèle d'indexation à partir du texte de l'issue.