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/Service/Contracts/EmployeeContractChangeRequest.php

@@ -0,0 +1,36 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Service\Contracts;
+
+use App\Enum\ContractNature;
+use DateTimeImmutable;
+
+final readonly class EmployeeContractChangeRequest
+{
+    public function __construct(
+        public ?ContractNature $contractNature,
+        public ?DateTimeImmutable $contractStartDate,
+        public ?DateTimeImmutable $contractEndDate,
+        public ?bool $contractPaidLeaveSettled,
+        public ?string $contractComment,
+    ) {}
+
+    public function hasPeriodChangeRequest(): bool
+    {
+        return null !== $this->contractNature
+            || null !== $this->contractStartDate
+            || null !== $this->contractEndDate
+            || null !== $this->contractPaidLeaveSettled
+            || null !== $this->contractComment;
+    }
+
+    public function isCloseOnlyRequest(bool $contractChanged): bool
+    {
+        return !$contractChanged
+            && null === $this->contractStartDate
+            && null === $this->contractNature
+            && null !== $this->contractEndDate;
+    }
+}