Réparer Model Builder : copier les DLL manquantes

# 1. Trouver l'édition de Visual Studio 2026 qui contient Model Builder
$vs = Get-ChildItem "C:\Program Files\Microsoft Visual Studio\18" -Directory |
  Where-Object { Test-Path "$($_.FullName)\Common7\IDE\CommonExtensions\Microsoft\ModelBuilder\AutoMLService" } |
  Select-Object -First 1
if (-not $vs) { Write-Host "Model Builder introuvable dans Visual Studio 2026." -ForegroundColor Red; return }

$ext = "$($vs.FullName)\Common7\IDE\CommonExtensions\Microsoft"
$src = "$ext\VBCSharp\LanguageServices\Core"
$dst = "$ext\ModelBuilder\AutoMLService"

# 2. Les 8 DLL à copier
$dlls = "Microsoft.CodeAnalysis", "Microsoft.CodeAnalysis.CSharp",
        "Microsoft.CodeAnalysis.Workspaces", "Microsoft.CodeAnalysis.CSharp.Workspaces",
        "System.Composition.AttributedModel", "System.Composition.Hosting",
        "System.Composition.Runtime", "System.Composition.TypedParts"

# 3. Copier puis vérifier chaque fichier
Write-Host "Visual Studio trouvé : $($vs.Name)" -ForegroundColor Cyan
foreach ($d in $dlls) {
  Copy-Item "$src\$d.dll" -Destination $dst -Force
  if (Test-Path "$dst\$d.dll") {
    $v = [Reflection.AssemblyName]::GetAssemblyName("$dst\$d.dll").Version
    Write-Host "  OK      $d.dll ($v)" -ForegroundColor Green
  } else {
    Write-Host "  ÉCHEC   $d.dll" -ForegroundColor Red
  }
}

Visual Studio trouvé : Community
  OK      Microsoft.CodeAnalysis.dll (5.12.0.0)
  OK      Microsoft.CodeAnalysis.CSharp.dll (5.12.0.0)
  OK      Microsoft.CodeAnalysis.Workspaces.dll (5.12.0.0)
  OK      Microsoft.CodeAnalysis.CSharp.Workspaces.dll (5.12.0.0)
  OK      System.Composition.AttributedModel.dll (10.0.0.10)
  OK      System.Composition.Hosting.dll (10.0.0.10)
  OK      System.Composition.Runtime.dll (10.0.0.10)
  OK      System.Composition.TypedParts.dll (10.0.0.10)