move goal progress calculation out of the resources

app/Service/Dto/GoalProgressDto.php

@@ -0,0 +1,22 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Service\Dto;
+
+use App\Enums\GoalStatus;
+use Illuminate\Support\Carbon;
+
+readonly class GoalProgressDto
+{
+    /**
+     * @param  Carbon  $periodStart  Start of the period in UTC (inclusive)
+     * @param  Carbon  $periodEnd  End of the period in UTC (exclusive)
+     */
+    public function __construct(
+        public Carbon $periodStart,
+        public Carbon $periodEnd,
+        public int $trackedSeconds,
+        public GoalStatus $status,
+    ) {}
+}