GateFox 1.9.0

• Codex app context items that arrive as a function_call_output with a name but no
  call_id (such as codex_apps_open_page) are rewritten once, before any provider,
  as a user context message <external_NAME>…</external_NAME>. They previously failed
  every gateway turn on Claude and other translated routes with "Responses request
  contains invalid or unsupported data". Request telemetry counts them as contextOutputs.