* fix(telegram): prevent duplicate messages in DM draft streaming mode
When using sendMessageDraft for DM streaming (streaming: 'partial'),
the draft bubble auto-converts to the final message. The code was
incorrectly falling through to sendPayload() after the draft was
finalized, causing a duplicate message.
This fix checks if we're in draft preview mode with hasStreamedMessage
and skips the sendPayload call, returning "preview-finalized" directly.
Key changes:
- Use hasStreamedMessage flag instead of previewRevision comparison
- Avoids double stopDraftLane calls by returning early
- Prevents duplicate messages when final text equals last streamed text
Root cause: In lane-delivery.ts, the final message handling logic
did not properly handle the DM draft flow where sendMessageDraft
creates a transient bubble that doesn't need a separate final send.
* fix(telegram): harden DM draft finalization path
* fix(telegram): require emitted draft preview for unchanged finals
* fix(telegram): require final draft text emission before finalize
* fix: update changelog for telegram draft finalization (#32118) (thanks @OpenCils)
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Co-authored-by: Ayaan Zaidi <zaidi@uplause.io>
