- The journey IPC capture pairs every traced start with its success or
error and exposes the calls still in flight. J2 settles only when J1's
capture, installed before the document loaded, has none pending, so a
slow startup call cannot resolve after the click and count as J2.
- The mock HTTP window starts at the renderer's click stamp instead of
the test-side mark taken before Playwright's actionability checks.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>