feat: Created a new .install command to install bundled assets on-demand

src/main.rs

@@ -145,6 +145,9 @@ async fn run(
     text: Option<String>,
     abort_signal: AbortSignal,
 ) -> Result<()> {
+    if let Some(category) = cli.install {
+        return config::install_assets(category);
+    }
     if cli.sync_models {
         let url = ctx.app.config.sync_models_url();
         return sync_models(&url, abort_signal.clone()).await;