public function store(Request $request)
 {
     $task = new Task($request->all());
     $task->user()->associate(\Auth::user());
     $task->save();
     return response()->json(['message' => 'Tarea creada exitosamente.', 'task' => $task]);
 }
 public function store(Request $request)
 {
     $user = Auth::user();
     $task = new Task();
     $task->description = $request->input('description');
     $task->user()->associate($user);
     $task->save();
     return $task;
 }