update cart

api/main.proto

@@ -37,9 +37,9 @@ service CRM {
       body: "order"
     };
   }
-  rpc GetCard(CardReq) returns (CardRsp) {
+  rpc GetCart(CartReq) returns (CartRsp) {
     option (google.api.http) = {
-      post: "/card"
+      post: "/cart"
       body: "items"
     };
   }
@@ -146,7 +146,7 @@ message OrderItem {
   int64 count = 2;
 }
 
-message CardItem {
+message CartItem {
   int64 id = 1;
   string article = 2;
   string name = 3;
@@ -161,12 +161,14 @@ message CardItem {
   repeated Label labels = 14;
 }
 
-message CardReq {
+message CartReq {
   repeated OrderItem items = 1;
 }
 
-message CardRsp {
-  repeated CardItem items = 1;
+message CartRsp {
+  repeated CartItem items = 1;
+  int64 amount = 2;
+  int64 amountOld = 3;
 }
 
 message GetImageReq {