Read a dispatched join's live status. {id} is the join id returned by POST /v1/meetings/join. Requires the meetings:join scope. Returns { id, type:"meeting_join", status, bot_in_call, fatal_reason, team_id, updated_at } where status is one of dispatched | joining | in_waiting_room | in_call | recording | done | fatal (fatal_reason carries the reason, e.g. meeting_requires_sign_in). A join you do not own, or that does not exist, returns 404 not_found (indistinguishable). The meeting URL / passcode is never returned.