fix(release): make MSBuild discovery resilient to newer VS lines

release.ps1

@@ -14,11 +14,32 @@ $ErrorActionPreference = 'Stop'
 $workingDir = $pwd
 Write-Output "Working directory: $workingDir"
 
-# Find MSBuild.
-$msBuildPath = & "${env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe" `
-    -latest -requires Microsoft.Component.MSBuild -find MSBuild\**\Bin\MSBuild.exe `
-    -prerelease | Select-Object -First 1
-Write-Output "MSBuild: $((Get-Command $msBuildPath).Path)"
+# Find MSBuild. vswhere is preferred, but older bundled versions don't recognize
+# newer VS lines (e.g. Dev18 / VS 2026), so we fall back to scanning known install paths.
+function Find-MSBuildPath {
+    $vswhere = "${env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe"
+    if (Test-Path $vswhere) {
+        $found = & $vswhere -latest -prerelease `
+            -requires Microsoft.Component.MSBuild `
+            -find 'MSBuild\**\Bin\MSBuild.exe' |
+            Select-Object -First 1
+        if ($found) { return $found }
+    }
+    $roots = @($env:ProgramFiles, ${env:ProgramFiles(x86)})
+    $editions = 'BuildTools','Community','Professional','Enterprise'
+    foreach ($r in $roots) {
+        foreach ($ver in '18','2026','2022','17') {
+            foreach ($ed in $editions) {
+                $p = Join-Path $r "Microsoft Visual Studio\$ver\$ed\MSBuild\Current\Bin\MSBuild.exe"
+                if (Test-Path $p) { return $p }
+            }
+        }
+    }
+    throw 'MSBuild not found via vswhere or known paths.'
+}
+
+$msBuildPath = Find-MSBuildPath
+Write-Output "MSBuild: $msBuildPath"
 
 # Load current Git tag.
 $tag = $(git describe --tags)