## Summary
One-off SMS and WhatsApp campaigns now show a `Processing` state while
the audience send is in progress. The campaign moves to `Completed`
after processing finishes, and already-processing campaigns are skipped
by the scheduler to avoid duplicate sends.
## Closes
- [CW-6037: feat: Introduce an in-progress status for
campaigns](https://linear.app/chatwoot/issue/CW-6037/feat-introduce-an-in-progress-status-for-campaigns)
## Screenshot
SMS campaign card showing the new `Processing` status.
<img width="3840" height="2160" alt="framed-campaign-processing-status"
src="https://github.com/user-attachments/assets/de7913b5-65fb-4121-9034-24a568eb0382"
/>
## What changed
- Added `processing` as a campaign status.
- Mark one-off campaigns as `processing` under a row lock before the
send service runs.
- Complete SMS, Twilio SMS, and WhatsApp one-off campaigns after
audience processing finishes.
- Keep campaigns in `processing` if an unexpected service error escapes,
so the scheduler does not automatically resend the audience.
- Added the `Processing` label for SMS and WhatsApp campaign cards.
## Known operational behavior
If a worker is interrupted or an unexpected service error escapes after
a campaign is marked `processing`, the campaign can remain in
`processing`. This is intentional for now to avoid automatic
full-audience resends. Installation admins can decide whether to mark
the campaign completed or restart it manually from the Rails console
after checking what was sent.
## How to test
- Create a one-off SMS or WhatsApp campaign scheduled for now.
- Run the scheduled job or trigger the campaign job.
- Confirm the campaign card shows `Processing` while the audience is
being processed. For small audiences, refresh during processing or use a
larger audience so the state is observable.
- Confirm the campaign moves to `Completed` after audience processing
finishes.
- Confirm an already-processing campaign is not enqueued again by the
scheduled job.
