Add occurrence search for paginated threads (#33907)

## What changed

- Add the experimental `thread/searchOccurrences` app-server method for case-insensitive literal search across visible user messages and final assistant messages without replaying the thread.
- Return paginated snippets with UTF-16 match ranges and `thread/turns/list` cursors for navigating to each matching turn.
- Index persisted item types to efficiently select searchable messages from paginated thread history.

## Testing

- Add an app-server integration test covering pagination, steering messages, final-answer selection, Markdown normalization, and UTF-16 offsets.

GitOrigin-RevId: e80160e0f83eb4e5db8de862307085093bee362b
This commit is contained in:
Owen Lin
2026-07-17 21:11:55 +00:00
committed by copyberry
parent 9f6c29e281
commit c1862b8db4
21 changed files with 875 additions and 23 deletions

1
MODULE.bazel.lock generated
View File

@@ -1353,7 +1353,6 @@
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