improvement(mothership): stream retry state machine, progressive re-rendering #4287

Bugbot Review

Bugbot Analysis Progress (9m 33s elapsed)

✅ Gathered PR context (5s)
✅ Completed bug detection (9m 27s)
✅ Posted analysis results (1s)

Final Result: Bugbot completed review - no issues found! ✅

Request ID: serverGenReqId_20d2e543-3cb5-4c45-97a4-4739e12695d8

✅ Bugbot reviewed your changes and found no new issues!

Comment @cursor review or bugbot run to trigger another review on this PR

^{Reviewed by Cursor Bugbot for commit 7bba0c5. Configure here.}