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.

从 CloudStack 4.22 System VM 中包含的 noVNC 剪贴板路径开始，在 Windows VM 上使用列出的土耳其文本重现该问题。将其行为与 Linux guest 以及相关的 issue 7335 进行比较。当 clipboard Send 在受影响的 Windows Server 版本中保留非 ASCII 字符时，即表示完成。

由索引模型根据 Issue 内容生成。