fix(lab): probe optional adapter image safely

experiments/perception/worker/observatory_portable/Install-LabV1ComponentAdapterImages.ps1

@@ -132,9 +132,15 @@ function Install-ComponentImage {
     }
     $shortRevision = $SourceRevision.Substring(0, 12)
     $tag = "ndc/mission-core-lab-v1-$Component-adapter:$shortRevision"
-    $existing = docker image inspect $tag 2>$null
-    if ($LASTEXITCODE -eq 0) {
-        $image = @($existing | ConvertFrom-Json)[0]
+    $existingId = docker image ls `
+        --quiet `
+        --no-trunc `
+        --filter "reference=$tag"
+    if ($LASTEXITCODE -ne 0) {
+        throw "LAB V1 component image lookup failed"
+    }
+    if ($existingId) {
+        $image = Get-ImageInspection $tag
         $labels = $image.Config.Labels
         if (
             [string]$labels."org.opencontainers.image.revision" -cne $SourceRevision -or