feat(events): add calendar email support

Help registrants add events to their calendars and keep waitlisted places distinct from confirmed attendance.

apps/cms/src/lib/waitlist-promotion.ts

@@ -110,6 +110,7 @@ async function promoteEvent(
       if (slots <= 0) break;
 
       const email = (registration as { email?: unknown }).email;
+      const fullName = (registration as { fullName?: unknown }).fullName;
       if (typeof email !== 'string' || email.length === 0) {
         strapi.log.warn(
           `${LOG_PREFIX} registration ${registration.documentId} has no email; left waitlisted.`,
@@ -122,6 +123,10 @@ async function promoteEvent(
         to: email,
         state: 'confirmed',
         eventReference: { documentId: eventDocumentId },
+        reservation: {
+          id: registration.documentId as string,
+          name: typeof fullName === 'string' ? fullName : undefined,
+        },
       });
 
       if (!ok) {