[#SIRH-20] Ajouter pour les forfaits le paiement de congés N-1 (#12)

| Numéro du ticket | Titre du ticket |
|------------------|-----------------|
|                  |                 |

## Description de la PR

## Modification du .env

## Check list

- [ ] Pas de régression
- [ ] TU/TI/TF rédigée
- [ ] TU/TI/TF OK
- [ ] CHANGELOG modifié

Reviewed-on: #12
Co-authored-by: tristan <tristan@yuno.malio.fr>
Co-committed-by: tristan <tristan@yuno.malio.fr>

frontend/services/dto/employee-leave-summary.ts

@@ -13,6 +13,7 @@ export type EmployeeLeaveSummary = {
   previousYearAcquiredDays: number
   previousYearTakenDays: number
   previousYearRemainingDays: number
+  previousYearPaidDays: number
   presenceDaysByMonth: Record<string, number>
 }