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/Services/Qr/QrCodeManagerService.php

@@ -309,6 +309,8 @@ class QrCodeManagerService
 
         if ($qrCode->type === QrCode::TYPE_ITINERARY) {
             $this->meetSync->syncEventsForProgramme($qrCode->fresh(), $qrCode->user);
+            app(\App\Services\Events\EventSpeakerInviteService::class)
+                ->inviteProgrammeHosts($qrCode->fresh(), $qrCode->user);
         }
 
         return $qrCode->fresh(['document']);