keep launcher cleanup from aborting on docker stderr warnings

docker/compose emit warnings on stderr (e.g. nothing to remove), which
tripped ErrorActionPreference=Stop and killed the run before the clone.
soften the preference around the best-effort cleanup steps.

scripts/Start-ShopDBDev.ps1

@@ -61,16 +61,27 @@ function Clear-InterruptedRun {
 	)
 
 	if (Get-Command docker -ErrorAction SilentlyContinue) {
-		# Only try compose down when the engine is actually responding, otherwise
-		# skip quietly - a fresh box may not have Docker started yet.
-		docker info *> $null
-		if ($LASTEXITCODE -eq 0) {
-			Write-Host "==> Cleaning up any interrupted '$Project' stack" -ForegroundColor Cyan
-			# --remove-orphans clears containers left by a killed build; volumes are
-			# intentionally kept so the DB survives a retry.
-			docker compose -p $Project down --remove-orphans *> $null
-			# Reclaim only dangling build cache from failed/partial builds.
-			docker builder prune -f *> $null
+		# docker/compose write warnings to stderr (e.g. "No resource found to
+		# remove"), which would trip $ErrorActionPreference='Stop' and abort the
+		# whole run. These cleanup steps are best-effort, so soften the preference
+		# and swallow all streams for their duration.
+		$previous = $ErrorActionPreference
+		$ErrorActionPreference = 'Continue'
+		try {
+			# Only try compose down when the engine is actually responding, otherwise
+			# skip quietly - a fresh box may not have Docker started yet.
+			docker info *> $null
+			if ($LASTEXITCODE -eq 0) {
+				Write-Host "==> Cleaning up any interrupted '$Project' stack" -ForegroundColor Cyan
+				# --remove-orphans clears containers left by a killed build; volumes are
+				# intentionally kept so the DB survives a retry.
+				docker compose -p $Project down --remove-orphans *> $null
+				# Reclaim only dangling build cache from failed/partial builds.
+				docker builder prune -f *> $null
+			}
+		}
+		finally {
+			$ErrorActionPreference = $previous
 		}
 	}