Roll up integration into dev

[loning]

Release notes

Rolled up 2 commits from integration at e0977597162c5a58f2f6265b8d62f1bf801c2a18, ahead of origin/dev.

This rollup fixes #135 via PR #136: raises emitted before a long spawn_codex_sync call are now made visible before the Codex subprocess finishes, instead of staying buffered until department pipeline exit.

Key change:

• Flushes the live RaiseBuffer before spawn_codex_sync enters its blocking Codex run.
• Allows the supervisor to observe/process authenticated raised events incrementally during child execution.
• Prevents progress markers such as implementation attempts from remaining invisible during long Codex runs.
• Reduces false terminal handling and duplicate Codex spawns caused by redelivery while markers were still buffered.

Operational impact:

• raise() visibility is no longer strictly end-of-pipeline for pre-spawn_codex_sync raises.
• Pre-spawn progress facts can be published before the Codex result is known.
• Retry safety continues to rely on idempotent raised-event handling.

中文摘要：

• 修复 spawn_codex_sync 长时间阻塞期间 raise() 不可见的问题。
• 让实现中/尝试中等进度标记能在 Codex 运行期间被 supervisor 看到。
• 降低误判终态和重复启动 Codex 的风险。
  ⟦AI:FKST⟧