feat(types): 兼容旧代码

types/src/interface/bill.ts

@@ -292,7 +292,7 @@ export interface IBillIndex extends IFBIndex {
   classCode: string; // 类别别名
   groupCode?: string;
   itemCharacter: string;
-  rations: IBillIndexRation[];
+  rations?: IBillIndexRation[];
   minUnitPrice?: string;
   maxUnitPrice?: string;
 }