- Remove auto-add logic that granted file_writer permission to the first
group/guild member who chatted with the bot
- Add ConfigTypeFileWriter and ConfigTypeHeartbeat constants, replace all
hardcoded config_type strings across callers
- Add bootstrap exception: /addwriter and !addwriter allow first writer
to be added when no writers exist yet
- Optimize writer commands: reuse cached ListFileWriters result for both
permission check and last-writer guard, reducing DB queries per command
- Add freshness directive to file writer system prompt so bot prioritizes
current list over stale references in conversation history
- Enable merge UI for linking channel contacts to tenant_users
- Contact → tenant_user resolution with cached lookup (60s TTL)
- MCP per-user credentials via user-keyed connection pool
- Secure CLI per-user credentials with AES-256-GCM encryption
- Unified UserPickerCombobox searching contacts + tenant_users
- Group contact collection with chat title in all channels
- Group permission inheritance via wildcard user_id="*"
- Fix heartbeat using wrong userID in group chats
- Filter internal senders from contact collection
- Add contact_type column (user/group) to channel_contacts
- SQLite schema v2 migration for desktop edition