Add per-customer SMS and Bird credentials to Frontdesk Integrations.

NotificationDispatcher sends via customer relay and skips Frontdesk wallet debit when tenant keys are configured.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/Jobs/SendCampaignMessageJob.php

@@ -15,6 +15,10 @@ use Illuminate\Contracts\Queue\ShouldQueue;
 use Illuminate\Foundation\Queue\Queueable;
 use Illuminate\Support\Facades\DB;
 
+/**
+ * Campaign delivery job — orphaned until Campaign / CampaignRecipient models exist.
+ * Wire to CustomerSmsClient / CustomerEmailClient + MessagingCredentialsService when campaigns ship.
+ */
 class SendCampaignMessageJob implements ShouldQueue
 {
     use Queueable;