ChatGPT MCP Apps bridge drops custom _meta from tool results in ui/notifications/tool-result

Thanks @nico9

At the moment this seems to work for the UI widget as a workaround:

app.ontoolresult = params => {
  loadPayload({
    // Patch to get metadata from ChatGPT
    _meta: { ...window.openai?.toolResponseMetadata },
    ...params
  });
};