Is your feature request related to a problem? Please describe:
*When syncing Teams chat messages via Graph API, messages from users who were removed from the chat cause errors because /chats/{chat-id}/members no longer returns their details. This breaks message archiving and attribution.
Describe the solution you'd like
Allow /chats/{chat-id}/members to return removed users with a status=removed flag, or provide an option to fetch historical members so syncing messages remains consistent.