Add ARM64 support for Windows ARM devices

[Copilot]

Users cannot install the extension on Windows ARM64 devices (e.g., Surface ARM) due to missing ARM64 architecture target and x64-only native dependencies.

Changes

• VSIX Manifest: Added ARM64 InstallationTarget alongside existing amd64 for VS 2022/2025
• Native Dependencies: Added ARM64 binaries for libsodium.dll (v1.0.20.1) and git2-e632535.dll (v2.0.320) from official NuGet packages
• Binary Organization: Restructured to architecture-specific folders (lib/win32/x64/, lib/win32/arm64/)
• libsodium Upgrade: Updated x64 version from v1.0.18 to v1.0.20.1 for consistency

Structure

lib/win32/
├── x64/
│   ├── libsodium.dll        (PE32+ x86-64)
│   └── git2-e632535.dll     (PE32+ x86-64)
└── arm64/
    ├── libsodium.dll        (PE32+ Aarch64)
    └── git2-e632535.dll     (PE32+ Aarch64)

Both LibGit2Sharp.NativeBinaries and libsodium NuGet packages provide official ARM64 Windows support.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• download.libsodium.org
  • Triggering command: curl -L -o libsodium-stable.zip REDACTED (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

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This section details on the original issue you should resolve

<issue_title>Support for ARM processors.</issue_title>
<issue_description>Is your feature request related to a problem? Please describe.
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]

Describe the solution you'd like
I cannot install the extension on my Windows Surface Arm processor

Error Message

10/29/2025 10:48:08 AM - Microsoft VSIX Installer
10/29/2025 10:48:08 AM - -------------------------------------------
10/29/2025 10:48:08 AM - vsixinstaller.exe version:
10/29/2025 10:48:08 AM - 18.0.252-preview2+d9233ff079
10/29/2025 10:48:08 AM - -------------------------------------------
10/29/2025 10:48:08 AM - Command line parameters:
10/29/2025 10:48:08 AM - C:\Program Files (x86)\Microsoft Visual Studio\Installer\resources\app\ServiceHub\Services\Microsoft.VisualStudio.Setup.Service\VSIXInstaller.exe,C:\Users\torki\Downloads\GitHubActionsVS.vsix
10/29/2025 10:48:08 AM - -------------------------------------------
10/29/2025 10:48:08 AM - Microsoft VSIX Installer
10/29/2025 10:48:08 AM - -------------------------------------------
10/29/2025 10:48:09 AM - Initializing Install...
10/29/2025 10:48:09 AM - Searching for applicable products...
10/29/2025 10:48:10 AM - Found installed product - SQL Server Management Studio 21
10/29/2025 10:48:10 AM - Found installed product - Visual Studio Enterprise 2026 Insiders
10/29/2025 10:48:10 AM - Found installed product - Visual Studio Enterprise 2022
10/29/2025 10:48:10 AM - Found installed product - Global Location
10/29/2025 10:48:10 AM - Extension Details...
10/29/2025 10:48:10 AM - Identifier : TimHeuer.GitHubActions
10/29/2025 10:48:10 AM - Name : GitHub Actions
10/29/2025 10:48:10 AM - Author : Tim Heuer
10/29/2025 10:48:10 AM - Version : 0.1.102
10/29/2025 10:48:10 AM - Description : A window that provides a view of GitHub Actions for the current repo of the opened solution in Visual Studio. Provided by @timheuer
10/29/2025 10:48:10 AM - Locale : en-US
10/29/2025 10:48:10 AM - MoreInfoURL : https://github.com/timheuer/GitHubActionsVS
10/29/2025 10:48:10 AM - InstalledByMSI : False
10/29/2025 10:48:10 AM - SupportedFrameworkVersionRange : [0.0,2147483647.2147483647]
10/29/2025 10:48:10 AM - SignatureState : Unsigned
10/29/2025 10:48:10 AM - Supported Products :
10/29/2025 10:48:10 AM - Microsoft.VisualStudio.Community
10/29/2025 10:48:10 AM - Version : [17.0,19.0)
10/29/2025 10:48:10 AM - ProductArchitecture : amd64
10/29/2025 10:48:10 AM - References :
10/29/2025 10:48:10 AM - Prerequisites :
10/29/2025 10:48:10 AM - -------------------------------------------------------
10/29/2025 10:48:10 AM - Identifier : Microsoft.VisualStudio.Component.CoreEditor
10/29/2025 10:48:10 AM - Name : Visual Studio core editor
10/29/2025 10:48:10 AM - Version : [17.0,)
10/29/2025 10:48:10 AM - Signature Details...
10/29/2025 10:48:10 AM - Extension is not signed.
10/29/2025 10:48:10 AM - VSIXInstaller.NoApplicableSKUsException: This extension is not installable on any currently installed products.
at VSIXInstaller.ExtensionService.GetInstallableDataImpl(String vsixPath, String extensionPackParentName, Boolean isRepairSupported, IStateData stateData, IEnumerable1& skuData) at VSIXInstaller.ExtensionService.GetInstallableData(String vsixPath, String extensionPackParentName, Boolean isRepairSupported, IStateData stateData, IEnumerable1& skuData)
at VSIXInstaller.ExtensionPackService.IsExtensionPack(IStateData stateData, Boolean isRepairSupported)
at VSIXInstaller.ExtensionPackService.ExpandExtensionPackToInstall(IStateData stateData, Boolean isRepairSupported)
at VSIXInstaller.App.Initialize(Boolean isRepairSupported)
at VSIXInstaller.App.Initialize()
at System.Threading.Tasks.Task`1.InnerInvoke()
at System.Threading.Tasks.Task.Execute()
</issue_description>

<agent_instructions>The issue reports that this is not installable on arm64. That is a simple change to include the InstallationTarget for arm64 and the same version range.

However there are two native dependencies (libsodium.dll and the lib\win32\x64\git2-e632535.dll) that need to be ensured are arm64 valid as well.</agent_instructions>

Comments on the Issue (you are @copilot in this section)

@timheuer @torkilp Thanks for the report -- I have two native dependencies that are x64 preventing me from quickly spinning up a build. I'll have to make time to track them down and ensure packaging works. I also don't have an `arm64` environment to validate so it may be some bumpy testing ;-)

• Fixes Support for ARM processors. #39

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