update: new field for cashier item (balance due and amount paid)

src/entity/cashier/cashier_item.ts

@@ -79,6 +79,18 @@ export class CashierItem {
     })
     qty: number;
 
+    @Column({
+        nullable: true,
+        type: 'bigint'
+    })
+    amount_paid: number;
+
+    @Column({
+        nullable: true,
+        type: 'bigint'
+    })
+    balance_due: number;
+
     @Column({ nullable: true, type: "text" })
     status: string;