[goose-llm] fix image content bug, add optional request_id field (#3439)

crates/goose-llm/examples/simple.rs

@@ -116,7 +116,7 @@ async fn main() -> Result<()> {
         println!("\nCompletion Response:");
         println!("{}", serde_json::to_string_pretty(&completion_response)?);
 
-        let tooltip = generate_tooltip(provider, provider_config.clone(), &messages).await?;
+        let tooltip = generate_tooltip(provider, provider_config.clone(), &messages, None).await?;
         println!("\nTooltip: {}", tooltip);
     }