Fix issues from golangci

postgres/budgetservice.go

@@ -11,6 +11,10 @@ import (
 // NewBudget creates a budget and adds it to the current user
 func (s *Database) NewBudget(context context.Context, name string, userID uuid.UUID) (*Budget, error) {
 	tx, err := s.BeginTx(context, &sql.TxOptions{})
+	if err != nil {
+		return nil, fmt.Errorf("begin transaction: %w", err)
+	}
+
 	q := s.WithTx(tx)
 	budget, err := q.CreateBudget(context, CreateBudgetParams{
 		Name:             name,
@@ -50,7 +54,10 @@ func (s *Database) NewBudget(context context.Context, name string, userID uuid.U
 		return nil, fmt.Errorf("set inflow category: %w", err)
 	}
 
-	tx.Commit()
+	err = tx.Commit()
+	if err != nil {
+		return nil, fmt.Errorf("commit: %w", err)
+	}
 
 	return &budget, nil
 }