feat(subscription): implement effective plan logic and update free plan features

src/Subscription/Repository/SubscriptionPlanRepository.php

@@ -32,6 +32,14 @@ class SubscriptionPlanRepository extends ServiceEntityRepository
             ->getResult();
     }
 
+    public function findAllForAdmin(): array
+    {
+        return $this->createQueryBuilder('p')
+            ->orderBy('p.level', 'ASC')
+            ->getQuery()
+            ->getResult();
+    }
+
     public function save(SubscriptionPlan $plan): void
     {
         $this->getEntityManager()->persist($plan);