perf(app): stabilize live session timeline updates

Virtualize SessionDetail rows behind stable presentation boundaries and apply typed incremental patches only after visible commits. Preserve reader state across live updates, handle coalesced and reordered patches, and verify the 120Hz append path with Electron tracing.
2026-07-14 18:11:51 +08:00
parent 2cad3b554d
commit b58c34d3af
18 changed files with 1968 additions and 913 deletions
@@ -4,6 +4,7 @@ import assert from 'node:assert/strict';
 import {
  createSessionLiveState,
  consumeSessionDirty,
+  markSessionDirty,
  noteSessionUpdated,
 } from '../app/src/renderer/src/session-live.mjs';

@@ -25,3 +26,12 @@ test('session live state reloads the visible session without leaving it dirty',
  assert.deepEqual(action, { reload: true, sessionId: 'session-1' });
  assert.equal(consumeSessionDirty(live, 'session-1'), false);
 });
+
+test('a rejected visible commit can put the session back into the dirty set', () => {
+  const live = createSessionLiveState();
+
+  noteSessionUpdated(live, 'session-1', 'session-1');
+  markSessionDirty('session-1', live);
+
+  assert.equal(consumeSessionDirty(live, 'session-1'), true);
+});