Add speaker invitations with portal page and programme host picker.

Speakers require email, get a personal holding page with programme and stage links, auto-invites when programme hosts are saved, and manual send for events without a schedule; also fix wallet copy on event create and anchor attendee comms.

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

app/Http/Controllers/Qr/QrCodeController.php

@@ -254,6 +254,9 @@ class QrCodeController extends Controller
             'customDomainsEnabled' => app(\App\Services\CustomDomain\CustomDomainService::class)->enabled(),
             'customDomainServerIp' => config('customdomain.server_ip'),
             'itineraryOptions' => $itineraryOptions,
+            'linkedEventSpeakers' => $qrCode->type === QrCode::TYPE_ITINERARY
+                ? app(\App\Services\Events\EventProgrammeService::class)->speakerOptionsForProgramme($qrCode)
+                : [],
         ]);
     }