feat: implement Hetzner deletion failure notification system with email and messaging support

app/Notifications/Server/HetznerDeletionFailed.php

@@ -0,0 +1,71 @@
+<?php
+
+namespace App\Notifications\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;
+
+class HetznerDeletionFailed extends CustomEmailNotification
+{
+    public function __construct(public int $hetznerServerId, public int $teamId, public string $errorMessage)
+    {
+        $this->onQueue('high');
+    }
+
+    public function via(object $notifiable): array
+    {
+        ray('hello');
+        ray($notifiable);
+
+        return $notifiable->getEnabledChannels('hetzner_deletion_failed');
+    }
+
+    public function toMail(): MailMessage
+    {
+        $mail = new MailMessage;
+        $mail->subject("Coolify: [ACTION REQUIRED] Failed to delete Hetzner server #{$this->hetznerServerId}");
+        $mail->view('emails.hetzner-deletion-failed', [
+            'hetznerServerId' => $this->hetznerServerId,
+            'errorMessage' => $this->errorMessage,
+        ]);
+
+        return $mail;
+    }
+
+    public function toDiscord(): DiscordMessage
+    {
+        return new DiscordMessage(
+            title: ':cross_mark: Coolify: [ACTION REQUIRED] Failed to delete Hetzner server',
+            description: "Failed to delete Hetzner server #{$this->hetznerServerId} from Hetzner Cloud.\n\n**Error:** {$this->errorMessage}\n\nThe server has been removed from Coolify, but may still exist in your Hetzner Cloud account. Please check your Hetzner Cloud console and manually delete the server if needed.",
+            color: DiscordMessage::errorColor(),
+        );
+    }
+
+    public function toTelegram(): array
+    {
+        return [
+            'message' => "Coolify: [ACTION REQUIRED] Failed to delete Hetzner server #{$this->hetznerServerId} from Hetzner Cloud.\n\nError: {$this->errorMessage}\n\nThe server has been removed from Coolify, but may still exist in your Hetzner Cloud account. Please check your Hetzner Cloud console and manually delete the server if needed.",
+        ];
+    }
+
+    public function toPushover(): PushoverMessage
+    {
+        return new PushoverMessage(
+            title: 'Hetzner Server Deletion Failed',
+            level: 'error',
+            message: "[ACTION REQUIRED] Failed to delete Hetzner server #{$this->hetznerServerId}.\n\nError: {$this->errorMessage}\n\nThe server has been removed from Coolify, but may still exist in your Hetzner Cloud account. Please check and manually delete if needed.",
+        );
+    }
+
+    public function toSlack(): SlackMessage
+    {
+        return new SlackMessage(
+            title: 'Coolify: [ACTION REQUIRED] Hetzner Server Deletion Failed',
+            description: "Failed to delete Hetzner server #{$this->hetznerServerId} from Hetzner Cloud.\n\nError: {$this->errorMessage}\n\nThe server has been removed from Coolify, but may still exist in your Hetzner Cloud account. Please check your Hetzner Cloud console and manually delete the server if needed.",
+            color: SlackMessage::errorColor()
+        );
+    }
+}