feat(types): groupCode非必填

types/src/interface/bill.ts

@@ -270,7 +270,7 @@ export interface IBillIndex {
   singleID: string;
   unitID: string;
   classCode: string; // 类别别名
-  groupCode: string;
+  groupCode?: string;
   code: string;
   name: string;
   unit: string;