feat: allow feature plan map in super admin (#9318)

- Add subscribed_features method in models/enterprise/account and include it in the JSON response

spec/enterprise/models/account_spec.rb

@@ -91,4 +91,45 @@ RSpec.describe Account do
       )
     end
   end
+
+  describe 'subscribed_features' do
+    let(:account) { create(:account) }
+    let(:plan_features) do
+      {
+        'hacker' => %w[feature1 feature2],
+        'startups' => %w[feature1 feature2 feature3 feature4]
+      }
+    end
+
+    before do
+      InstallationConfig.where(name: 'CHATWOOT_CLOUD_PLAN_FEATURES').first_or_create(value: plan_features)
+    end
+
+    context 'when plan_name is hacker' do
+      it 'returns the features for the hacker plan' do
+        account.custom_attributes = { 'plan_name': 'hacker' }
+        account.save!
+
+        expect(account.subscribed_features).to eq(%w[feature1 feature2])
+      end
+    end
+
+    context 'when plan_name is startups' do
+      it 'returns the features for the startups plan' do
+        account.custom_attributes = { 'plan_name': 'startups' }
+        account.save!
+
+        expect(account.subscribed_features).to eq(%w[feature1 feature2 feature3 feature4])
+      end
+    end
+
+    context 'when plan_features is blank' do
+      it 'returns an empty array' do
+        account.custom_attributes = {}
+        account.save!
+
+        expect(account.subscribed_features).to be_nil
+      end
+    end
+  end
 end