Ok, well, that got out of hand (#3718)

Co-authored-by: Douwe Osinga <douwe@squareup.com>
Co-authored-by: Michael Neale <michael.neale@gmail.com>

crates/goose-server/src/routes/agent.rs

@@ -255,7 +255,7 @@ async fn update_agent_provider(
             .get_param("GOOSE_MODEL")
             .expect("Did not find a model on payload or in env to update provider with")
     });
-    let model_config = ModelConfig::new(model);
+    let model_config = ModelConfig::new(&model).map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?;
     let new_provider = create(&payload.provider, model_config).unwrap();
     agent
         .update_provider(new_provider)

crates/goose-server/src/routes/reply.rs

@@ -441,7 +441,7 @@ mod tests {
 
         #[tokio::test]
         async fn test_reply_endpoint() {
-            let mock_model_config = ModelConfig::new("test-model".to_string());
+            let mock_model_config = ModelConfig::new("test-model").unwrap();
             let mock_provider = Arc::new(MockProvider {
                 model_config: mock_model_config,
             });