launch error display

Scripts/remote_worker_controller.ps1

@@ -224,8 +224,24 @@ function Get-PendingCommands {
 # endregion
 
 try {
+    # Check if metadata already exists with a ControllerPid (set by ensureScript)
+    $existingControllerPid = $null
+    if (Test-Path $metaPath) {
+        try {
+            $existing = Get-Content $metaPath -Raw | ConvertFrom-Json
+            if ($existing.ControllerPid) {
+                $existingControllerPid = $existing.ControllerPid
+            }
+        } catch {
+            # Ignore parse errors
+        }
+    }
+    
+    # Use existing ControllerPid if available, otherwise use current PID
+    $controllerPidToUse = if ($existingControllerPid) { $existingControllerPid } else { $PID }
+    
     # record initial state before launching worker
-    Write-Metadata -Status 'initializing' -WorkerPid $null -ControllerPid $PID -Restarts 0
+    Write-Metadata -Status 'initializing' -WorkerPid $null -ControllerPid $controllerPidToUse -Restarts 0
 
     $resolvedPayloadBase64 = Resolve-PayloadBase64
     $PayloadBase64 = $resolvedPayloadBase64