[BUG] VSCode extension v2.0.3 reports "Signature verification failed with 'ENOENT' error." when trying to upgrade

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

I get a notification in VSCode that there is a new version of CC extension, but when I click "Update", I am getting a warning from VSCode saying:

"Cannot install 'Claude Code for VS Code' extension because Visual Studio Code cannot verify the extension signature

Signature verification failed with 'ENOENT' error."

I'd rather not disable signature verification.

What Should Happen?

Extension should update to the new version.

Error Messages/Logs

Steps to Reproduce

• Open VSCode
• Make sure that you are using version < 2.0.3
• Make sure that you don't have extension signature verification turned off in VSCode
• Query for extension updates, see an update to v2.0.3
• Click the "Update" button
• See the error message

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.0.2

Claude Code Version

2.0.1

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

VS Code integrated terminal

Additional Information

P.S. You should add native extension into the Terminal/Shell dropdown in the bug template.