* fix(telegram): accept messages from group members in allowlisted groups
Issue #4559: Telegram bot was silently dropping messages from non-paired users
in allowlisted group chats due to overly strict sender filtering.
The fix adds a check to distinguish between:
1. Group itself is allowlisted → accept messages from any member
2. Group is NOT allowlisted → only accept from allowlisted senders
Changes:
- Check if group ID is in the allowlist (or allowlist is wildcard)
- Only reject sender if they're not in allowlist AND group is not allowlisted
- Improved logging to indicate the actual reason for rejection
This preserves security controls while fixing the UX issue where group members
couldn't participate unless individually allowlisted.
Backwards compatible: existing allowlists continue to work as before.
* style: format telegram fix for oxfmt compliance
* refactor(telegram): clarify group allowlist semantics in fix for #4559
Changes:
- Rename 'isGroupInAllowlist' to 'isGroupChatIdInAllowlist' for clarity
- Expand comments to explain the semantic distinction:
* Group chat ID in allowlist -> accept any group member (fixes#4559)
* Group chat ID NOT in allowlist -> enforce sender allowlist (preserves security)
- This addresses concerns about config semantics raised in code review
The fix maintains backward compatibility:
- 'groupAllowFrom' with group chat IDs now correctly acts as group enablement
- 'groupAllowFrom' with sender IDs continues to work as sender allowlist
- Operators should use group chat IDs for group enablement, sender IDs for sender control
Note: If operators were using 'groupAllowFrom' with group IDs expecting sender-level
filtering, they should migrate to a separate sender allowlist config. This is the
intended behavior per issue #4559.
* Telegram: allow per-group groupPolicy overrides
* Telegram: support per-group groupPolicy overrides (#9775) (thanks @nicolasstanley)
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Co-authored-by: George Pickett <gpickett00@gmail.com>
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