a lot of progress towards unification.

src/clj/auto_ap/graphql/clients.clj

@@ -14,7 +14,7 @@
                                :in ['$ '?code]
                                :where ['[?id :client/code ?code]]}
                        :args [(d/db (d/connect uri)) code]}))
-    (throw (ex-info "Client is not unique" {:validation-error "Client is not unique"}))))
+    (throw (ex-info "Client is not unique" {:validation-error (str "Client code '" code "' is not unique.")}))))
 
 (defn edit-client [context {:keys [edit_client new_bank_accounts] :as args} value]
   (assert-admin (:id context))