45fce38b9e
- authz_mixin: add config.extra fallback for group_allowed_chats when observe-unmentioned mode strips user_id from env-var check - authz_mixin: check adapter allow_from/group_allow_from for user authorization from config.yaml without env vars - telegram/adapter: separate group_allow_from for group chats vs allow_from for DMs - telegram/adapter: preserve sender source for command messages so admin-only slash commands work in groups - telegram/adapter: add _telegram_extra fallback for group_allow_from config reading