chore: save current workspace progress

.task8-sweep/tests/verify_path_smoothing_png.ps1

@@ -0,0 +1,18 @@
+param(
+    [string]$FixturePath = (Join-Path $PSScriptRoot '..\ParkrobTrajplanner\PathSmoothing\Test\Fixtures\path-smoothing-fixtures.json')
+)
+
+$ErrorActionPreference = 'Stop'
+
+$hostProject = Join-Path $PSScriptRoot 'PathSmoothingPngVerificationHost\PathSmoothingPngVerificationHost.csproj'
+if (-not (Test-Path -LiteralPath $hostProject)) {
+    throw "Path smoothing PNG verification host was not found: $hostProject"
+}
+
+$resolvedFixturePath = (Resolve-Path -LiteralPath $FixturePath).Path
+& dotnet run --project $hostProject --no-restore -- $resolvedFixturePath
+if ($LASTEXITCODE -ne 0) {
+    exit $LASTEXITCODE
+}
+
+Write-Output 'Path smoothing PNG checks passed.'