feat : ajout d'un écran pour le récap congés et RTT

src/Util/LeaveRecapCutoff.php

@@ -0,0 +1,23 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Util;
+
+use DateTimeImmutable;
+
+/**
+ * Leave recap cutoff rule: as-of end of ISO week S-2 (Sunday 23:59:59).
+ *
+ * Example: Tuesday 2026-04-14 (S16) → Sunday 2026-04-05 23:59:59 (end of S14).
+ */
+final class LeaveRecapCutoff
+{
+    public static function resolveCutoff(DateTimeImmutable $today): DateTimeImmutable
+    {
+        $currentWeekMonday = $today->modify('monday this week')->setTime(0, 0);
+        $cutoffWeekMonday  = $currentWeekMonday->modify('-14 days');
+
+        return $cutoffWeekMonday->modify('+6 days')->setTime(23, 59, 59);
+    }
+}