Ruslan Nigmatullin 340a18ed7c Preserve model-facing ID allocations in saved history (#60771) ...

## Why

Restoring model-facing ID sequences requires allocation ordinals alongside the rendered IDs. Responses API payloads still require string IDs.

## What changed

- Add allocation metadata to `ResponseItemId` while keeping equality, hashing, and ordering based on the rendered ID.
- Preserve optional `id_allocation` metadata in rollout items, inter-agent messages, compaction replacement history, and Guardian checkpoints. Continue accepting legacy string IDs.
- Support structured context-window allocations alongside UUIDv7 strings, validate the `window` salt on restoration, and keep request metadata IDs as strings.

## Testing

Add tests for allocation round trips, legacy ID compatibility, string-only raw response item IDs, and context-window allocation validation.

GitOrigin-RevId: ce1fd964bde9a4e7c527432be99aea87ada30169

2026-11-11 09:58:13 +00:00

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json

Preserve file-backed audio in tool outputs (#60735)

2026-11-11 06:41:15 +00:00

precomputed

Preserve model-facing ID allocations in saved history (#60771)

2026-11-11 09:58:13 +00:00

typescript

Preserve file-backed audio in tool outputs (#60735)

2026-11-11 06:41:15 +00:00