fix p49

config/retriex/agent.yaml

@@ -500,6 +500,14 @@ parameters:
 
       direct_result_guard:
         enabled: true
+        compound_prefix_match:
+          enabled: true
+          # Some Shopware product names combine the requested product type with
+          # a noun suffix, for example "pH-Pufferlösung". Keep this list small
+          # and explicit so broad direct-result filtering remains safe.
+          terms:
+            - puffer
+            - kalibrierpuffer
 
       length_sort:
         enabled: true