ci: invoke vpk.dll directly, slim restore step

scripts/release/package-velopack.ps1

@@ -10,7 +10,7 @@
     5. Çıktı: artifacts/velopack/win-x64-stable/
 
 .NOTES
-    Velopack CLI: dotnet tool restore ile yüklenen vpk kullanılır
+    Velopack CLI: NuGet paketinden dogrudan calistirilan vpk.dll kullanilir
     Icon: Assets/AppIcon.ico (installer ikonu)
     Velopack CLI args: camelCase (--outputDir, --packId, --packTitle, --packAuthors, --packVersion, --packDir, --mainExe)
 #>
@@ -72,6 +72,10 @@ if (-not $WhatIf) {
 }
 
 # 2. vpk pack (args camelCase)
+$nugetPkgs = $env:NUGET_PACKAGES
+if (-not $nugetPkgs) { $nugetPkgs = Join-Path $env:USERPROFILE ".nuget/packages" }
+$vpkDll = Join-Path $nugetPkgs "vpk/0.0.1298/tools/net8.0/any/vpk.dll"
+if (-not (Test-Path $vpkDll)) { throw "vpk.dll not found at $vpkDll" }
 $vpkArgs = @(
     "pack",
     "--outputDir", $velopackDir,
@@ -85,10 +89,10 @@ $vpkArgs = @(
 )
 Write-Host "vpk pack..." -ForegroundColor Cyan
 if (-not $WhatIf) {
-    & dotnet tool run vpk $vpkArgs
+    & dotnet $vpkDll $vpkArgs
     if ($LASTEXITCODE -ne 0) { throw "vpk pack failed ($LASTEXITCODE)" }
 } else {
-    Write-Host "[WhatIf] dotnet tool run vpk $vpkArgs"
+    Write-Host "[WhatIf] dotnet $vpkDll $vpkArgs"
 }
 
 # 3. Sadece Setup.exe ve Portable.zip'i istenen formata rename et