fix(lab): bound T-014 process cleanup [T-014]

Sense/scripts/t014-capacity.ps1

@@ -125,6 +125,20 @@ function Stop-ManagedProcess($Managed) {
     }
 }
 
+function Stop-AllManagedProcesses($Items) {
+    $processes = @($Items | Where-Object { $null -ne $_ -and $null -ne $_.Process })
+    foreach ($item in $processes) {
+        if (-not $item.Process.HasExited) {
+            $item.Process.Kill()
+        }
+    }
+    foreach ($item in $processes) {
+        if (-not $item.Process.HasExited) {
+            $item.Process.WaitForExit(10000) | Out-Null
+        }
+    }
+}
+
 function Assert-Alive($Managed) {
     if ($null -eq $Managed -or $Managed.Process.HasExited) {
         $code = if ($null -eq $Managed) { 'not-started' } else { $Managed.Process.ExitCode }
@@ -879,9 +893,7 @@ catch {
     $failure = "T-014 stage '$stage' failed: $($_.Exception.Message)"
 }
 finally {
-    foreach ($item in @($managed)) {
-        Stop-ManagedProcess $item
-    }
+    Stop-AllManagedProcesses @($managed)
     if ($postgresStarted) {
         & $script:pgCtl '-D' $pgData '-m' 'fast' '-w' 'stop' | Out-Null
         $postgresStopped = $LASTEXITCODE -eq 0