try build vsix

Author: qiuhaotc

.github/workflows/build-vsix.yml

@@ -11,13 +11,18 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+      - name: Setup MSBuild (add to PATH)
+        uses: microsoft/setup-msbuild@v2
       - name: Locate MSBuild
         id: msbuild
         shell: pwsh
         run: |
-          $msbuild = & "$env:ProgramFiles(x86)\Microsoft Visual Studio\Installer\vswhere.exe" -latest -products * -requires Microsoft.Component.MSBuild -find MSBuild\**\Bin\MSBuild.exe | Select-Object -First 1
+          # 正确取 ProgramFiles(x86) 需要使用 ${env:ProgramFiles(x86)} 否则路径会变成 "Program Files(x86)"
+          $vswhere = "${env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe"
+          if(-not (Test-Path $vswhere)) { throw "vswhere not found at $vswhere" }
+          $msbuild = & $vswhere -latest -requires Microsoft.Component.MSBuild -find "MSBuild\**\Bin\MSBuild.exe" | Select-Object -First 1
           if(-not $msbuild){ throw 'MSBuild not found' }
-          echo "path=$msbuild" >> $env:GITHUB_OUTPUT
+          "path=$msbuild" | Out-File -FilePath $env:GITHUB_OUTPUT -Append -Encoding utf8
       - name: Build VSIX (Release)
         shell: pwsh
         run: |