Move status#workerstatus to its own controller

Refactor StatusController, move worker related actions to
its own controllers

src/api/app/controllers/worker/status_controller.rb

@@ -0,0 +1,5 @@
+class Worker::StatusController < ApplicationController
+  def index
+    send_data(WorkerStatus.hidden.to_xml)
+  end
+end

src/api/spec/controllers/worker/status_controller_spec.rb

@@ -0,0 +1,18 @@
+require 'rails_helper'
+
+RSpec.describe Worker::StatusController, vcr: true do
+  render_views
+
+  let(:user) { create(:confirmed_user) }
+
+  before do
+    login user
+  end
+
+  describe 'GET /index' do
+    subject! { get :index, params: { format: :xml } }
+
+    it { is_expected.to have_http_status(:success) }
+    it { assert_select 'workerstatus[clients=2]' }
+  end
+end