[#SIRH-17] Ajouter un système de log des actions utilisateurs (#9)

| 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: #9
Co-authored-by: tristan <tristan@yuno.malio.fr>
Co-committed-by: tristan <tristan@yuno.malio.fr>

src/State/WorkHourBulkUpsertProcessor.php

@@ -14,6 +14,7 @@ use App\Enum\TrackingMode;
 use App\Repository\Contract\AbsenceReadRepositoryInterface;
 use App\Repository\EmployeeRepository;
 use App\Repository\WorkHourRepository;
+use App\Service\AuditLogger;
 use App\Service\Contracts\EmployeeContractResolver;
 use DateTimeImmutable;
 use Doctrine\ORM\EntityManagerInterface;
@@ -31,6 +32,7 @@ final readonly class WorkHourBulkUpsertProcessor implements ProcessorInterface
         private WorkHourRepository $workHourRepository,
         private AbsenceReadRepositoryInterface $absenceRepository,
         private EmployeeContractResolver $contractResolver,
+        private AuditLogger $auditLogger,
     ) {}
 
     public function process(
@@ -137,9 +139,20 @@ final readonly class WorkHourBulkUpsertProcessor implements ProcessorInterface
 
             $is4hContract = 4 === $contract->getWeeklyHours();
 
+            $empName = trim(($employee->getLastName() ?? '').' '.($employee->getFirstName() ?? ''));
+
             if ($this->isEntryEmpty($normalized)) {
                 // Convention choisie: une ligne vide supprime l'enregistrement existant.
                 if ($existing) {
+                    $this->auditLogger->log(
+                        $employee,
+                        'delete',
+                        'work_hour',
+                        $existing->getId(),
+                        sprintf('Heures supprimées pour %s le %s', $empName, $data->workDate),
+                        ['old' => $this->snapshotWorkHour($existing)],
+                        $workDate,
+                    );
                     $this->entityManager->remove($existing);
                     ++$result->deleted;
                 } elseif (($absenceByEmployeeId[$employeeId] ?? false) === true || $is4hContract) {
@@ -163,9 +176,11 @@ final readonly class WorkHourBulkUpsertProcessor implements ProcessorInterface
             }
 
             if ($existing) {
-                $workHour = $existing;
+                $oldSnapshot = $this->snapshotWorkHour($existing);
+                $workHour    = $existing;
                 ++$result->updated;
             } else {
+                $oldSnapshot = null;
                 // Upsert: création si aucune ligne n'existe pour (employé, date).
                 $workHour = new WorkHour()
                     ->setEmployee($employee)
@@ -179,6 +194,23 @@ final readonly class WorkHourBulkUpsertProcessor implements ProcessorInterface
             if (!$isAdmin) {
                 $workHour->setUpdatedAt(new DateTimeImmutable());
             }
+
+            $newSnapshot = $this->snapshotWorkHour($workHour);
+            $action      = null !== $oldSnapshot ? 'update' : 'create';
+            $changes     = null !== $oldSnapshot
+                ? ['old' => $oldSnapshot, 'new' => $newSnapshot]
+                : ['new' => $newSnapshot];
+
+            $this->auditLogger->log(
+                $employee,
+                $action,
+                'work_hour',
+                $workHour->getId(),
+                sprintf('Heures %s pour %s le %s', null !== $oldSnapshot ? 'modifiées' : 'créées', $empName, $data->workDate),
+                $changes,
+                $workDate,
+            );
+
             ++$result->processed;
         }
 
@@ -446,6 +478,30 @@ final readonly class WorkHourBulkUpsertProcessor implements ProcessorInterface
         ;
     }
 
+    /**
+     * @return array<string, mixed>
+     */
+    private function snapshotWorkHour(WorkHour $wh): array
+    {
+        return [
+            'morningFrom'          => $wh->getMorningFrom(),
+            'morningTo'            => $wh->getMorningTo(),
+            'afternoonFrom'        => $wh->getAfternoonFrom(),
+            'afternoonTo'          => $wh->getAfternoonTo(),
+            'eveningFrom'          => $wh->getEveningFrom(),
+            'eveningTo'            => $wh->getEveningTo(),
+            'isPresentMorning'     => $wh->getIsPresentMorning(),
+            'isPresentAfternoon'   => $wh->getIsPresentAfternoon(),
+            'dayHoursMinutes'      => $wh->getDayHoursMinutes(),
+            'nightHoursMinutes'    => $wh->getNightHoursMinutes(),
+            'workshopHoursMinutes' => $wh->getWorkshopHoursMinutes(),
+            'hasBreakfast'         => $wh->getHasBreakfast(),
+            'hasLunch'             => $wh->getHasLunch(),
+            'hasDinner'            => $wh->getHasDinner(),
+            'hasOvernight'         => $wh->getHasOvernight(),
+        ];
+    }
+
     /**
      * @param array{
      *     morningFrom:?string,