Copy image in Load Image node shows permission denied error

## Issue Description
When copying an image in the Load Image node, an alert popup appears with the following error message:
```text
Error copying image: Failed to execute 'write' on 'Clipboard': Write permission denied.
```

<img width="1396" height="1099" alt="Image" src="https://github.com/user-attachments/assets/8aba67d1-39dd-4927-abfd-f2b57dcac9ae" />