Frame event checkout sheet for ticket buyers.

Use buyer-facing copy, attendee email for gateway receipts, and keep operator wording only for staff wallet top-up.

app/Services/Events/EventRegistrationService.php

@@ -130,16 +130,18 @@ class EventRegistrationService
             ? sprintf('%s — %s', $content['name'] ?? $qrCode->label, $tierName)
             : sprintf('%s ticket — %s', $content['name'] ?? $qrCode->label, $tierName);
 
-        $sellerEmail = trim((string) ($qrCode->user->email ?? ''));
-        if ($sellerEmail === '' || ! str_contains($sellerEmail, '@')) {
-            $sellerEmail = 'seller+'.($qrCode->user->public_id ?? 'events').'@checkout.ladill.local';
+        // Ticket buyers (not till staff): gateways get the attendee email so
+        // receipts and 3DS challenges belong to the person purchasing.
+        $buyerEmail = $email;
+        if ($buyerEmail === '' || ! str_contains($buyerEmail, '@')) {
+            $buyerEmail = 'buyer+'.($registration->reference).'@checkout.ladill.local';
         }
 
         $checkout = $this->gateway->initializeCheckout(
             $qrCode->user,
             $amountMinor,
             (string) ($registration->currency ?? 'GHS'),
-            $sellerEmail,
+            $buyerEmail,
             LadillLink::path($qrCode->short_code, 'register/callback'),
             $registration->reference,
             [
@@ -148,6 +150,7 @@ class EventRegistrationService
                 'registration_reference' => $registration->reference,
                 'qr_code_id' => $qrCode->id,
                 'mode' => $mode,
+                'attendee_email' => $email,
             ],
         );