- ChatThread per client/provider and channel; messages get files, internal notes,
source (bot/mini app) and delivery errors; reply templates. Migration moves old
concierge messages into threads.
- Routing: subscribers write to the concierge, others to support; /support and
/concierge in the client bot; staff can take, transfer, close and move threads.
- Telegram: photos/documents from clients and providers, replies with the channel
header, files sent from storage, notifications only to the assignee or the
channel's staff, "Reply" into a specific thread.
- New admin: /chats with list, conversation, notes, files, templates, client panel;
"Message" button on the client card; dashboard counts threads awaiting reply.
- Client mini app: in-app chat screen sharing the same conversation.
- Old admin keeps working on the same data (notes hidden there).
- Tests for routing, notes, assign/close/move, lists, recipients; separate test DB
via TEST_DB_NAME; dev:chats-demo script.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
