feat(subscription): implement resource quota management based on subscription plans

src/Subscription/Controller/SubscriptionController.php

@@ -83,6 +83,7 @@ class SubscriptionController extends BaseController
                 'effective_plan' => $effectivePlan === null ? null : [
                     'features'        => $effectivePlan->getFeatures(),
                     'max_secretaries' => $effectivePlan->getMaxSecretaries(),
+                    'max_resources'   => $effectivePlan->getMaxResources(),
                 ],
             ]);
         }
@@ -148,7 +149,8 @@ class SubscriptionController extends BaseController
             $name,
             (int) $data['level'],
             (int) ($data['max_secretaries'] ?? 1),
-            $data['features'] ?? []
+            $data['features'] ?? [],
+            (int) ($data['max_resources'] ?? 1)
         );
 
         $this->planRepo->save($plan);
@@ -176,6 +178,7 @@ class SubscriptionController extends BaseController
         }
         if (isset($data['level']))           { $plan->setLevel((int) $data['level']); }
         if (isset($data['max_secretaries'])) { $plan->setMaxSecretaries((int) $data['max_secretaries']); }
+        if (isset($data['max_resources']))   { $plan->setMaxResources((int) $data['max_resources']); }
         if (isset($data['features']))        { $plan->setFeatures($data['features']); }
         if (isset($data['active']))          { $plan->setActive((bool) $data['active']); }