reorganize and cleanup php server code

server/app/Http/Controllers/Api/Users/SessionsController.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace Vanguard\Http\Controllers\Api\Users;
+
+use Vanguard\Http\Controllers\Api\ApiController;
+use Vanguard\Http\Resources\SessionResource;
+use Vanguard\Repositories\Session\SessionRepository;
+use Vanguard\User;
+
+/**
+ * @package Vanguard\Http\Controllers\Api\Users
+ */
+class SessionsController extends ApiController
+{
+    public function __construct()
+    {
+        $this->middleware('permission:users.manage');
+        $this->middleware('session.database');
+    }
+
+    /**
+     * Get sessions for specified user.
+     * @param User $user
+     * @param SessionRepository $sessions
+     * @return \Illuminate\Http\Resources\Json\AnonymousResourceCollection
+     */
+    public function index(User $user, SessionRepository $sessions)
+    {
+        return SessionResource::collection(
+            $sessions->getUserSessions($user->id)
+        );
+    }
+}