VSCode extension ships with two binaries, wasting disk space

What version of the IDE extension are you using?

vscode 26.406.31024

What subscription do you have?

Edu

Which IDE are you using?

VS Code

What platform is your computer?

Microsoft Windows NT 10.0.26100.0 x64

What issue are you seeing?

<img width="500" height="399" alt="Image" src="https://github.com/user-attachments/assets/3dee53d8-312d-44f7-bf15-3057e4126319" />

The extension ships with both binaries for *nix and Windows, essentially wasting ~150MiB of disk space for every user, no matter the user's OS

What steps can reproduce the bug?

1. Install the extension
2. Look at the installed extension using something like du, ncdu, or if on Windows, spacesniffer

What is the expected behavior?

Download the required codex binary only for the platform

Additional information

_No response_