fix: wrong check for printing log (#1968)

Co-authored-by: sangjanai <[email protected]>

Author: vansangpfiev

engine/services/engine_service.cc

@@ -320,7 +320,7 @@ cpp::result<void, std::string> EngineService::DownloadEngine(
         engine,  // engine_name
         kLocal, "", "", normalize_version, variant.value(), "Default", "");
 
-    if (create_res.has_value()) {
+    if (create_res.has_error()) {
       CTL_ERR("Failed to create engine entry: " << create_res->engine_name);
     } else {
       CTL_INF("Engine entry created successfully");