fix(orchestration): stabilize Codex turn mapping and settlement

- Preserve Codex turn identity while suppressing duplicate diff notifications
- Optimize settlement projections and isolate thread visit handling
- Add concurrency and regression coverage across server and mobile
6502e22dc9Julius Marminge committed on 9/5/2026, 4:54:29 AMparent25d2531
64 files changedLine totals unavailable