fix(app): isolate live session updates from scrolling

Defer and coalesce global catalogue refreshes while SessionDetail is active, carry session metadata through incremental patches, and gate in-flight catalogue commits by route. Harden the virtual timeline cold-open and user-scroll lifecycle, and add Electron frame, continuity, metadata, and overlap regressions.
2026-07-15 22:12:40 +08:00
parent 5294d76f07
commit 1e4e5ec2d8
16 changed files with 906 additions and 72 deletions
@@ -38,7 +38,7 @@ function dispatch(target, type, properties = {}) {
  target.dispatchEvent(event);
 }

-test('native scrollend, not the virtualizer 150ms reset, ends a user scroll', () => {
+test('native scrollend ends a user scroll after a short wheel-burst grace period', () => {
  const scheduler = createScheduler();
  const target = new EventTarget();
  target.scrollTop = 100;
@@ -46,6 +46,7 @@ test('native scrollend, not the virtualizer 150ms reset, ends a user scroll', ()
  let ended = 0;
  const userScroll = createSessionUserScroll({
    quietMs: 450,
+    scrollEndGraceMs: 100,
    setTimeout: scheduler.setTimeout,
    clearTimeout: scheduler.clearTimeout,
    onEnd: () => { ended++; },
@@ -61,6 +62,9 @@ test('native scrollend, not the virtualizer 150ms reset, ends a user scroll', ()
  assert.equal(ended, 0);

  dispatch(target, 'scrollend');
+  scheduler.advance(99);
+  assert.equal(userScroll.isActive(), true, 'a following wheel packet can retain scroll ownership');
+  scheduler.advance(1);
  assert.equal(userScroll.isActive(), false);
  assert.equal(ended, 1);