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 authored and copyberry committed 2026-07-17 21:24:26 +00:00
1 parent 9f6c29e281
commit c1862b8db4
21 files changed
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@@ -37,18 +37,22 @@ pub use types::LoadThreadHistoryParams;
pub use types::ReadThreadByRolloutPathParams;
pub use types::ReadThreadParams;
pub use types::ResumeThreadParams;
pub use types::SearchTextRange;
pub use types::SearchThreadOccurrencesParams;
pub use types::SearchThreadsParams;
pub use types::SortDirection;
pub use types::StoredModelContext;
pub use types::StoredThread;
pub use types::StoredThreadHistory;
pub use types::StoredThreadItem;
pub use types::StoredThreadOccurrence;
pub use types::StoredThreadSearchResult;
pub use types::StoredTurn;
pub use types::StoredTurnError;
pub use types::StoredTurnItemsView;
pub use types::StoredTurnStatus;
pub use types::ThreadMetadataPatch;
pub use types::ThreadOccurrenceSearchPage;
pub use types::ThreadPage;
pub use types::ThreadPersistenceMetadata;
pub use types::ThreadRelationFilter;