Fix migration designer using for EF

Migrations/20260211120000_AddChipsVirgensControleRecebidos.Designer.cs

@@ -2,6 +2,7 @@
 using System;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
 using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
 using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
 using line_gestao_api.Data;