test create plan with request

app/Plan/UseCases/CreatePlan.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Plan\UseCases;
+
+use App\Plan\CreatePlanDto;
+use App\Plan\Plan;
+use App\Plan\PlanRepository;
+
+class CreatePlan
+{
+    public function __construct(
+        private PlanRepository $planRepo,
+    ) {}
+
+    public function execute(CreatePlanRequest $request): Plan
+    {
+        return $this->planRepo->create(new CreatePlanDto(
+            name: $request->name,
+        ));
+    }
+}