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/DispatchCampaignJob.php

@@ -7,6 +7,9 @@ use App\Models\CampaignRecipient;
 use Illuminate\Contracts\Queue\ShouldQueue;
 use Illuminate\Foundation\Queue\Queueable;
 
+/**
+ * Campaign batch dispatch — orphaned until Campaign model exists.
+ */
 class DispatchCampaignJob implements ShouldQueue
 {
     use Queueable;