Extension activation reports unsupported Windows x64 architecture

Does this occur consistently?
Repro steps:

1.
2.

Action: azextAgent.activate
Error type: Error
Error Message: This operating system and architecture is not supported by the GitHub Copilot for Azure extension. If you believe this is an error, please contact the extension authors. win-x64

Version: 1.0.164
OS: win32
OS Arch: x64
OS Release: 10.0.26200
Product: Visual Studio Code
Product Version: 1.109.5
Language: en
UTC time: Tue, 03 Mar 2026 18:14:30 GMT

Call Stack

```
extension.bundle.js:2:2140471extension.bundle.js:2:2140471
fulfilled extension.bundle.js:2:2138044
```

Start by reproducing the azextAgent.activate failure on Windows x64 and inspect the activation path represented by extension.bundle.js in the call stack. Confirm whether the reported platform is incorrectly rejected; done means the extension activates successfully on the stated Windows x64 environment.

Written by the indexing model from the issue text.