add onnx and metadata

bin/build.ps1

@@ -1,10 +1,35 @@
-$csc = "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe"
-if (-not (Test-Path $csc)) {
-    $csc = "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
+$ErrorActionPreference = 'Stop'
+$work = Join-Path ([System.IO.Path]::GetTempPath()) ('ldcc-publish-' + [Guid]::NewGuid().ToString('N'))
+$exitCode = 1
+try {
+    if (-not (Get-Command dotnet -ErrorAction SilentlyContinue)) {
+        throw 'dotnet SDK non trovato. Installare un SDK compatibile con .NET 8.'
+    }
+    $publish = Join-Path $work 'publish'
+    $obj = (Join-Path $work 'obj') + '\'
+    $output = (Join-Path $work 'build') + '\'
+    & dotnet publish (Join-Path $PSScriptRoot 'LoopbackCapture.csproj') -c Release -o $publish "-p:BaseIntermediateOutputPath=$obj" "-p:BaseOutputPath=$output"
+    $exitCode = $LASTEXITCODE
+    if ($exitCode -eq 0) {
+        try {
+            $built = Get-Item (Join-Path $publish 'LoopbackCapture.exe')
+            # Guardia: un self-contained single-file pesa decine di MB. Poche centinaia di
+            # KB significano publish framework-dependent, che su un PC senza runtime .NET
+            # non parte. Meglio fallire qui che distribuire un exe che non si avvia.
+            if ($built.Length -lt 20MB) {
+                throw "publish inatteso: $($built.Length) byte. Atteso self-contained (>20 MB): controllare SelfContained/RuntimeIdentifier/PublishSingleFile in LoopbackCapture.csproj."
+            }
+            Copy-Item $built.FullName (Join-Path $PSScriptRoot 'LoopbackCapture.exe') -Force
+            Write-Output ("Build completata: bin\LoopbackCapture.exe ({0:N0} byte, self-contained .NET 8)." -f $built.Length)
+        } catch {
+            $exitCode = 1
+            Write-Error "Impossibile aggiornare bin\LoopbackCapture.exe: file in uso o accesso negato. Chiudere il bridge e ripetere la build. $($_.Exception.Message)" -ErrorAction Continue
+        }
+    }
+} catch {
+    $exitCode = 1
+    Write-Error $_ -ErrorAction Continue
+} finally {
+    if (Test-Path $work) { Remove-Item $work -Recurse -Force -ErrorAction SilentlyContinue }
 }
-if (-not (Test-Path $csc)) {
-    Write-Error "Compilatore .NET Framework csc.exe non trovato (Framework64 / Framework)."
-    exit 1
-}
-& $csc /nologo /unsafe /optimize+ /target:exe /out:bin\LoopbackCapture.exe bin\LoopbackCapture.cs
-exit $LASTEXITCODE
+exit $exitCode