NB23 (actually any version) - encoding of Output window

### Apache NetBeans version

Apache NetBeans 23

### What happened

The problem is the next - output window displays Cyrillic (or non-latin) symbols not correctly.
I found that it is `windows-1251` encoding, but I can't force to show it in russian. I have red [this issue](https://github.com/apache/netbeans/issues/7116) and fount that problem wasn't solve. I also found the solution about `netbeans.conf` and put these parameters - now it is `win1251` but I tried `utf-8` and others - no reaction.

I use Netbeans to develop in PHP and JS to build websites. It's not very important for me like Java developers, but this problem goes through many versions. I understand that it depends on Java installation, but, can you, please make a setting which synchronize encoding to show non-latin chars correctly? Special for `Output window`. Maybe in his settings.

### Language / Project Type / NetBeans Component

PHP/JS project (website)

### How to reproduce

1. Install Netbeans in cyrillic workaround (windows languages and regions) - `Ru-ru` for example
2. Create PHP project on remote server
3. Create any file
4. Change this file and save it.
5. Watch messages in output window

### Did this work correctly in an earlier version?

No / Don't know

### Operating System

System: Windows 11 version 10.0 running on amd64; win1251; ru_RU (nb)

### JDK

Java: 20.0.2; Java HotSpot(TM) 64-Bit Server VM 20.0.2+9-78

### Apache NetBeans packaging

Apache NetBeans provided installer

### Anything else

_No response_

### Are you willing to submit a pull request?

No

Start by reproducing the Cyrillic output-window behavior using the listed Windows 11, Java 20, PHP/JS project, and remote-server steps. Read the output window behavior and the netbeans.conf encoding parameters mentioned in the report; done means non-Latin output displays correctly and the relevant encoding setting has an observable effect.

Written by the indexing model from the issue text.