Files
multica/packages/core
Naiyuan Qing f6f90ad87f feat(chat): workspace-scoped attachment binding + fire-and-forget send
Uploads are now workspace-scoped: the chat session is created and
attachments are bound to the message at send time, so a paste/drop no
longer creates an empty session the user never sends.

- LinkAttachmentsToChatMessage returns the ids it actually bound; the
  client diffs requested-vs-bound and warns on partial bind, replacing
  an extra listChatMessagesPage fetch.
- Cancelling an empty chat task detaches attachments before deleting the
  user message (attachment FK is ON DELETE CASCADE) and returns them via
  cancelled_chat_message.attachments, so a restored draft can re-bind.
- SendChatMessageResponse.attachment_ids has no omitempty: "requested but
  bound zero" serializes [] so the client can tell it apart from an older
  server and still warn.
- Send is fire-and-forget: it no longer steals focus when the user has
  navigated to another session (guarded on the live store + new-chat agent
  id); the reply surfaces via the unread dot. commitInput gets clearEditor
  so a navigated-away commit doesn't wipe the editor now showing another
  session, while still clearing the sent draft's data.
- Draft restore is session-aware so a failed fire-and-forget send restores
  into the session it was sent from, never the one the user moved to.
- Removed the now-unreferenced migrateInputDraft store action.

Verified: core/views typecheck, chat-input (15) / store (3) / api client
(24) unit tests, go build + vet, handler SendChatMessage + CancelTaskByUser
DB tests. Full make check / E2E left to CI.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-17 17:20:49 +08:00
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