Return Meet attendees to join flow after event registration.

Add badge verification API, preserve meet_return through registration and payment, and link confirmation back to Meet with badge auto-login.

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

app/Services/Events/EventRegistrationService.php

@@ -98,6 +98,9 @@ class EventRegistrationService
         }
         $amountMinor = (int) round($priceGhs * 100);
 
+        $meetReturn = trim((string) ($data['meet_return'] ?? ''));
+        $metadata = $meetReturn !== '' ? ['meet_return' => $meetReturn] : null;
+
         $registration = QrEventRegistration::create([
             'qr_code_id' => $qrCode->id,
             'user_id' => $qrCode->user_id,
@@ -111,6 +114,7 @@ class EventRegistrationService
             'attendee_phone' => trim((string) ($data['attendee_phone'] ?? '')) ?: null,
             'badge_fields' => $badgeFields ?: null,
             'status' => $amountMinor > 0 ? QrEventRegistration::STATUS_PENDING : QrEventRegistration::STATUS_CONFIRMED,
+            'metadata' => $metadata,
         ]);
 
         if ($amountMinor === 0) {