fix: deploy_hub.ps1 splat variable

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

scripts/deploy_hub.ps1

@@ -51,7 +51,7 @@ try {
     $deployArgs = @("scripts\deploy_hub_remote.py", "--version", $Version)
     if ($DryRun) { $deployArgs += "--dry-run" }
     if ($PublishAgent) { $deployArgs += "--publish-agent" }
-    & $Python @args
+    & $Python @deployArgs
     if ($LASTEXITCODE -ne 0) { throw "remote deploy failed (see ROLLBACK_REQUIRED above)" }
     Write-Host "DEPLOY_SCRIPT_OK log=$Log"
 } finally {