stefanstokic-oai bbbf396839 Sync updates to imported external agent sessions (#36356) ...

## Why

External agent session files can gain messages after their initial import. Re-importing those files should extend the existing Codex thread instead of creating a duplicate.

## What changed

- Map a changed source session back to its uniquely imported thread and append only the missing transcript suffix.
- Update the import ledger after verifying that the source and destination transcripts match.
- Defer the update when the target is active, archived, ambiguous, diverged, or otherwise unsafe to modify.

## Testing

Added unit and app-server coverage for suffix planning, ledger checkpointing, concurrent updates, and unsafe targets that must be deferred.

GitOrigin-RevId: 3d9e71cd66e8b31cf5128e8869063868bfb3eb05

2026-07-31 16:17:44 +00:00

..

common

Run code mode exclusively through the standalone host (#36217)

2026-07-30 20:24:29 +00:00

suite

Sync updates to imported external agent sessions (#36356)

2026-07-31 16:17:44 +00:00

all.rs

[codex] Use expect in integration tests (#28441)

2026-06-15 21:53:47 -07:00