richardopenai 4f39251a01 Add unfinished root turn suspension (#40038) ...

## Why

An active root turn needs to be stopped without marking it complete or aborted
before another runtime can recover the same turn ID.

## What changed

- Add `CodexThread::suspend_turn_and_shutdown` and `SuspendTurnOutcome`.
- Flush history, stop the active regular task, close the history writer, and
  shut down the session without recording a terminal turn event.
- Reject suspension when no supported turn is active or the loaded agent
  subtree still contains a live descendant.

## Testing

- Verify that suspension preserves unfinished history and allows the turn to be
  recovered under its original ID after the descendant guard is cleared.

GitOrigin-RevId: 1f9b019d07c51474ec2d991d263bc15cdd4f89ad

2026-08-22 00:42:19 +00:00

..

src

Add unfinished root turn suspension (#40038)

2026-08-22 00:42:19 +00:00

BUILD.bazel

Add codex-core public API listing (#20243)

2026-04-29 22:58:08 +00:00

Cargo.toml

Extract persisted history types into a dedicated crate (#37871)

2026-08-10 19:26:52 +00:00