Polls the status of an OpenAI background response created by
openai_deep_research(.background = TRUE).
openai_check_research(.job, .max_tries = 3)An updated tidyllm_research_job with $status set. If completed, $response
is also populated and ready for fetch_job().
A tidyllm_research_job object returned by openai_deep_research(.background = TRUE).
Maximum retries per HTTP request (default: 3).