Add rounding feature

app/Enums/TimeEntryRoundingType.php

@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Enums;
+
+use Datomatic\LaravelEnumHelper\LaravelEnumHelper;
+
+enum TimeEntryRoundingType: string
+{
+    use LaravelEnumHelper;
+
+    case Up = 'up';
+    case Down = 'down';
+    case Nearest = 'nearest';
+}