feat(notification): add Pushover

app/Notifications/Server/HighDiskUsage.php

@@ -5,6 +5,7 @@ namespace App\Notifications\Server;
 use App\Models\Server;
 use App\Notifications\CustomEmailNotification;
 use App\Notifications\Dto\DiscordMessage;
+use App\Notifications\Dto\PushoverMessage;
 use App\Notifications\Dto\SlackMessage;
 use Illuminate\Notifications\Messages\MailMessage;
 
@@ -57,6 +58,19 @@ class HighDiskUsage extends CustomEmailNotification
         ];
     }
 
+    public function toPushover(): PushoverMessage
+    {
+        return new PushoverMessage(
+            title: 'High disk usage detected',
+            level: 'warning',
+            message: "Server '{$this->server->name}' high disk usage detected!<br/><br/><b>Disk usage:</b> {$this->disk_usage}%.<br/><b>Threshold:</b> {$this->server_disk_usage_notification_threshold}%.<br/>Please cleanup your disk to prevent data-loss.",
+            buttons: [
+                'Change settings' => base_url().'/server/'.$this->server->uuid."#advanced",
+                'Tips for cleanup' => "https://coolify.io/docs/knowledge-base/server/automated-cleanup",
+            ],
+        );
+    }
+
     public function toSlack(): SlackMessage
     {
         $description = "Server '{$this->server->name}' high disk usage detected!\n";