- Replaced time-based sleeps and polling loops with event-driven promise resolvers and fake timers across agent and tool tests.
- Migrated test suites to share in-memory auth storage and fixtures using lifecycle hooks.
- Updated catalog model definitions, metadata, and configurations.
- Updated task tool execution to pin live regions and drop partial snapshots once rows commit.
- Tracked background task frozen styled rows and render timestamps to prevent clock drift on committed history.
- Added tests verifying detached and blocking task progress do not duplicate rows in scrollback.
Rebased the committed-row seam when multiplexer reflow exposes native scrollback inside an enlarged viewport.
Added production transcript coverage for a finalized prefix above a live response and verified no ED3 is emitted.
Fixes#6011
- Added comprehensive unit tests for `TranscriptContainer` to verify uncommitted block tracking.
- Created integration tests ensuring `AssistantMessageComponent` correctly streams thinking and answer content into scrollback.
- Added tests verifying that expanded tool evaluation output records rows correctly without duplication after settling.
- Updated `AssistantMessageComponent` test suite to cover table streaming scenarios in the unsettled tail.
- Replaced commit-based stability checks with a unified `isTranscriptBlockFinalized` tracking mechanism.
- Removed deprecated provisional rendering configuration and flags across tool and renderer interfaces.
- Standardized native scrollback boundary logic to pin at the first unfinalized block using settled row verification.
- Updated and refactored test suites to validate block finalization and settled row boundaries instead of deprecated commit stability methods.
- Clamped tool output preview height to the available viewport rows to stop redundant banner commits.
- Added `outputBlockContentWidth` helper to accurately measure visual lines for scrollback budget calculations.
- Updated `bash` and `eval-render` output wrapping to account for block padding and inner content width.
- Added regression test confirming streaming tool output maintains a stable line count without duplicating headers.
can1357