Laravel通知系统优化：实现短期内通知计数更新与新通知抑制

public function toDatabase($notifiable): array
{
    $count = 1;
    // 尝试查找并更新现有通知
    if ($notification = $notifiable->notifications()->where('data->search', $this->search->id)
        ->where('updated_at', '>=', now()->subMinutes(30))
        ->first()) {
        $count = isset($notification->data['count']) ? $notification->data['count'] + 1 : 1;
        $notification->update([
            'data' => [
                'content' => [
                    'en' => "{$count} new posts matched with your saved search {$this->search->title} has been posted, Press here to view more.",
                ],
                'count' => $count
            ]
        ]);
    }
    // 问题所在：此方法始终返回一个数组
    return [
        'content' => [
            'en' => "{$count} new post matched with your saved search {$this->search->title} has been posted, Press here to view more.",
        ],
        'count' => $count,
        'search' => $this->search->id,
        'parameters' => $this->search->parameters
    ];
}

// app/Notifications/NewPostMatchedSearch.php
namespace App\Notifications;

use Illuminate\Bus\Queueable;
use Illuminate\Notifications\Notification;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Notifications\Messages\DatabaseMessage;
use App\Models\Search; // 假设存在 Search 模型

class NewPostMatchedSearch extends Notification
{
    use Queueable;

    protected $search;
    protected $count; // 用于存储当前通知的计数

    /**
     * 创建一个新的通知实例。
     *
     *