Dylan Hurd 2c4a95736b Expose response usage metadata in completion events (#41087) ...

## What changed

- Parse optional `usage_metadata.amount` values from Responses API completion events without converting their string representation.
- Propagate the metadata through SSE and WebSocket streams, regular turns, and remote compaction.
- Add `usageMetadata` to the app-server `rawResponse/completed` notification and its generated schemas.

## Testing

- Cover missing, null, zero, and high-precision amounts, including completion events emitted during compaction.

GitOrigin-RevId: b16d81e8350eab0dc7ff613d0dc9dbed73041713

2026-08-27 07:50:05 +00:00

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json

Expose response usage metadata in completion events (#41087)

2026-08-27 07:50:05 +00:00

precomputed

Expose response usage metadata in completion events (#41087)

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typescript

Expose response usage metadata in completion events (#41087)

2026-08-27 07:50:05 +00:00