e2e: choice-builder-pages "opens a macro's branch" can miss the Configure Log click under load #2220

tests/e2e/choice-builder-pages.test.ts, test "opens a macro's branch and Choice step as pages over it, and back returns to the macro", failed once at line 165. It was a native run on Linux with Obsidian 1.14.4, at master e772433 plus #2219, with a host load average of about 57.

clickWhenStill found .macroBuilder [aria-label="Configure Log"] and clicked it. The page stack then stayed at ["Morning"] instead of ["Morning", "Log"]. The click comes right after leaveSettingsPage, while the macro page slides back in.

The spec passed 12 of 12 when rerun alone twice, and every caller spec passed in a full rerun of all seven (24 of 24 tests). One failure is not enough to confirm a cause.

Unconfirmed guess: under heavy load the slide-in animation can stall for the 100 ms between two samples. clickWhenStill then sees two equal positions and clicks mid-transition, before the row takes clicks.

Found while verifying #2219.