fix: preserve model associations on refresh

apps/aether-gateway/src/model_fetch/runtime.rs

@@ -549,14 +549,6 @@ mod tests {
                 .cloned()
                 .collect())
         }
-
-        async fn delete_admin_provider_model(
-            &self,
-            _provider_id: &str,
-            _model_id: &str,
-        ) -> Result<bool, Self::Error> {
-            Ok(false)
-        }
     }
 
     #[async_trait]

apps/aether-gateway/src/model_fetch/tests.rs

@@ -300,12 +300,12 @@ async fn gateway_model_fetch_updates_key_and_syncs_provider_model_whitelist_asso
         })
         .await
         .expect("provider models should load");
-    assert_eq!(provider_models.len(), 1);
-    assert_eq!(
-        provider_models[0].global_model_name.as_deref(),
-        Some("gpt-5")
-    );
-    assert_eq!(provider_models[0].provider_model_name, "gpt-5");
+    let mut provider_model_names = provider_models
+        .iter()
+        .map(|model| model.provider_model_name.as_str())
+        .collect::<Vec<_>>();
+    provider_model_names.sort_unstable();
+    assert_eq!(provider_model_names, vec!["gpt-4.1", "gpt-5"]);
 
     execution_runtime_handle.abort();
 }
@@ -526,11 +526,12 @@ async fn gateway_background_model_fetch_updates_key_and_syncs_provider_model_whi
         })
         .await
         .expect("provider models should load");
-    assert_eq!(provider_models.len(), 1);
-    assert_eq!(
-        provider_models[0].global_model_name.as_deref(),
-        Some("gpt-5")
-    );
+    let mut provider_model_names = provider_models
+        .iter()
+        .map(|model| model.provider_model_name.as_str())
+        .collect::<Vec<_>>();
+    provider_model_names.sort_unstable();
+    assert_eq!(provider_model_names, vec!["gpt-4.1", "gpt-5"]);
 
     let seen_plan = seen_execution_runtime_plan
         .lock()

apps/aether-gateway/src/state/integrations.rs

@@ -236,16 +236,6 @@ impl ModelFetchAssociationStore for AppState {
             .await
             .map_err(|err| format!("{err:?}"))
     }
-
-    async fn delete_admin_provider_model(
-        &self,
-        provider_id: &str,
-        model_id: &str,
-    ) -> Result<bool, Self::Error> {
-        AppState::delete_admin_provider_model(self, provider_id, model_id)
-            .await
-            .map_err(|err| format!("{err:?}"))
-    }
 }
 
 #[async_trait]