[增添]添加了datasource的setting数据库以及默认值

vendor/filament/notifications/docs/04-broadcast-notifications.md

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+---
+title: Broadcast notifications
+---
+
+## Overview
+
+> To start, make sure the package is [installed](installation) - `@livewire('notifications')` should be in your Blade layout somewhere.
+
+By default, Filament will send flash notifications via the Laravel session. However, you may wish that your notifications are "broadcast" to a user in real-time, instead. This could be used to send a temporary success notification from a queued job after it has finished processing.
+
+We have a native integration with [Laravel Echo](https://laravel.com/docs/broadcasting#client-side-installation). Make sure Echo is installed, as well as a [server-side websockets integration](https://laravel.com/docs/broadcasting#server-side-installation) like Pusher.
+
+## Sending broadcast notifications
+
+There are several ways to send broadcast notifications, depending on which one suits you best.
+
+You may use our fluent API:
+
+```php
+use Filament\Notifications\Notification;
+
+$recipient = auth()->user();
+
+Notification::make()
+    ->title('Saved successfully')
+    ->broadcast($recipient);
+```
+
+Or, use the `notify()` method:
+
+```php
+use Filament\Notifications\Notification;
+
+$recipient = auth()->user();
+
+$recipient->notify(
+    Notification::make()
+        ->title('Saved successfully')
+        ->toBroadcast(),
+)
+```
+
+Alternatively, use a traditional [Laravel notification class](https://laravel.com/docs/notifications#generating-notifications) by returning the notification from the `toBroadcast()` method:
+
+```php
+use App\Models\User;
+use Filament\Notifications\Notification;
+use Illuminate\Notifications\Messages\BroadcastMessage;
+
+public function toBroadcast(User $notifiable): BroadcastMessage
+{
+    return Notification::make()
+        ->title('Saved successfully')
+        ->getBroadcastMessage();
+}
+```