fix: use calendarAddress/organizerCalendarAddress for scheduling, drop retired sendTo/replyTo #500

lib/__tests__/calendar-participants.test.ts

@@ -285,7 +285,10 @@ describe('buildParticipantMap', () => {
     expect(org!.roles).toEqual({ owner: true, attendee: true });
     expect(org!.participationStatus).toBe('accepted');
     expect(org!.scheduleAgent).toBe('server');
-    expect(org!.sendTo).toEqual({ imip: 'mailto:alice@example.com' });
+    // sendTo is retired in draft-ietf-calext-jscalendarbis; the scheduling
+    // address is carried by calendarAddress instead.
+    expect(org!.sendTo).toBeUndefined();
+    expect(org!.calendarAddress).toBe('mailto:alice@example.com');
     expect(org!.expectReply).toBe(false);
 
     const att0 = entries.find(p => p.email === 'bob@example.com');

lib/calendar-participants.ts

@@ -107,6 +107,9 @@ export function buildParticipantMap(
 
   const generateId = () => generateUUID();
 
+  // calendarAddress is the scheduling address in draft-ietf-calext-jscalendarbis
+  // (implemented by Stalwart); the RFC 8984 sendTo property is retired there and
+  // stored as an inert JSPROP, so it is intentionally not sent.
   participants[generateId()] = {
     '@type': 'Participant',
     name: organizer.name,
@@ -115,7 +118,6 @@ export function buildParticipantMap(
     roles: { owner: true, attendee: true },
     participationStatus: 'accepted',
     scheduleAgent: 'server',
-    sendTo: { imip: `mailto:${organizer.email}` },
     expectReply: false,
     kind: 'individual',
   };
@@ -129,7 +131,6 @@ export function buildParticipantMap(
       roles: { attendee: true },
       participationStatus: 'needs-action',
       scheduleAgent: 'server',
-      sendTo: { imip: `mailto:${a.email}` },
       expectReply: true,
       kind: 'individual',
     };