fix(offers): add read_draft_orders scope so draftOrders query works

app/routes/app.invoices.tsx

@@ -146,7 +146,14 @@ export const loader = async ({ request }: LoaderFunctionArgs) => {
           }>;
         };
       };
+      errors?: Array<{ message: string }>;
     };
+    if (json.errors?.length) {
+      console.warn(
+        "draftOrders query returned errors:",
+        json.errors.map((e) => e.message).join("; "),
+      );
+    }
     const nodes = json.data?.draftOrders?.nodes ?? [];
     const draftIds = nodes.map((n) => n.id);