mod client;pub use client::LMStudioClient;use codex_core::config::Config;/// Default OSS model to use when `--oss` is passed without an explicit `-m`.pub const DEFAULT_OSS_MODEL: &str = "openai/gpt-oss-20b";/// Prepare the local OSS environment when `--oss` is selected.////// - Ensures a local LM Studio server is reachable./// - Checks if the model exists locally and downloads it if missing.pub async fn ensure_oss_ready(config: &Config) -> std::io::Result<()> {    let model = match config.model.as_ref() {        Some(model) => model,        None => DEFAULT_OSS_MODEL,    };    // Verify local LM Studio is reachable.    let lmstudio_client = LMStudioClient::try_from_provider(config).await?;    match lmstudio_client.fetch_models().await {        Ok(models) => {            if !models.iter().any(|m| m == model) {                lmstudio_client.download_model(model).await?;            }        }        Err(err) => {            // Not fatal; higher layers may still proceed and surface errors later.            tracing::warn!("Failed to query local models from LM Studio: {}.", err);        }    }    // Load the model in the background    tokio::spawn({        let client = lmstudio_client.clone();        let model = model.to_string();        async move {            if let Err(e) = client.load_model(&model).await {                tracing::warn!("Failed to load model {}: {}", model, e);            }        }    });    Ok(())}