Ajout des notification + page employé (#6)

| 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: #6
Co-authored-by: tristan <tristan@yuno.malio.fr>
Co-committed-by: tristan <tristan@yuno.malio.fr>

src/Repository/EmployeeRttBalanceRepository.php

@@ -0,0 +1,34 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Repository;
+
+use App\Entity\Employee;
+use App\Entity\EmployeeRttBalance;
+use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository;
+use Doctrine\Persistence\ManagerRegistry;
+
+/**
+ * @extends ServiceEntityRepository<EmployeeRttBalance>
+ */
+final class EmployeeRttBalanceRepository extends ServiceEntityRepository
+{
+    public function __construct(ManagerRegistry $registry)
+    {
+        parent::__construct($registry, EmployeeRttBalance::class);
+    }
+
+    public function findOneByEmployeeAndYear(Employee $employee, int $year): ?EmployeeRttBalance
+    {
+        return $this->createQueryBuilder('b')
+            ->andWhere('b.employee = :employee')
+            ->andWhere('b.year = :year')
+            ->setParameter('employee', $employee)
+            ->setParameter('year', $year)
+            ->setMaxResults(1)
+            ->getQuery()
+            ->getOneOrNullResult()
+        ;
+    }
+}