All clear. Tested:

- Layout renders correctly (split-panel, header, thread list, time window selector)
- All 9 API endpoints working (`/threads`, `/session-tails`, `/linear-issues`, `/attach-thread`, `/update-thread`, `/delete-thread`, `/sync-linear`, `/transcribe`)
- 3 threads in last 24h, all with session logs loading correctly
- 87 Linear issues synced
- 18 issue attachments in Redis

No bugs found. Nothing needed fixing.