fix: Create separate calendar events to hide organizer (#21555)

* Add notes to `EventManager.create`

* Create `CalendarServiceEvent`

* Generate calendar description and remove attendees if event is private in `CalendarManager`

* Process event for reschedule method

* Refactor calendar services

* Clean up comment

* Type fixes

* Type fix

* Type fix

packages/features/bookings/lib/handleSeats/cancel/cancelAttendeeSeat.ts

@@ -2,6 +2,7 @@ import { getCalendar } from "@calcom/app-store/_utils/getCalendar";
 import { sendCancelledSeatEmailsAndSMS } from "@calcom/emails";
 import sendPayload from "@calcom/features/webhooks/lib/sendOrSchedulePayload";
 import type { EventPayloadType, EventTypeInfo } from "@calcom/features/webhooks/lib/sendPayload";
+import { getRichDescription } from "@calcom/lib/CalEventParser";
 import { getAllDelegationCredentialsForUserIncludeServiceAccountKey } from "@calcom/lib/delegationCredential/server";
 import { getDelegationCredentialOrFindRegularCredential } from "@calcom/lib/delegationCredential/server";
 import { HttpError } from "@calcom/lib/http-error";
@@ -96,6 +97,7 @@ async function cancelAttendeeSeat(
           const updatedEvt = {
             ...evt,
             attendees: evt.attendees.filter((evtAttendee) => attendee.email !== evtAttendee.email),
+            calendarDescription: getRichDescription(evt),
           };
           if (reference.type.includes("_video")) {
             integrationsToUpdate.push(updateMeeting(credential, updatedEvt, reference));