Fix flaky test [chromium] _ e2e/tasks-feed.spec.ts:778:3 _ the /tasks board narrowing inside a wide window _ a ticked-then-unticked box hides when the pointer leaves, and Tab still reveals it

The merge lane saw `[chromium] _ e2e/tasks-feed.spec.ts:778:3 _ the /tasks board narrowing inside a wide window _ a ticked-then-unticked box hides when the pointer leaves, and Tab still reveals it` fail and then pass on a rerun of the same tree. - Test: `[chromium] _ e2e/tasks-feed.spec.ts:778:3 _ the /tasks board narrowing inside a wide window _ a ticked-then-unticked box hides when the pointer leaves, and Tab still reveals it` - Tree: `25770f51e0f0bba083604fd35849dfb9a00ade95` - Lane task: 9820 - Flake record: 01a17106-29bb-70bc-aae4-c5b71c2566e4 Make it deterministic; do not delete it unless it tests nothing.

Fixed tasks-feed.spec.ts:778 flake: hover lost to post-reload re-render left tick pointer-events:none, click hung. Test now settles, hovers pick host until revealed (toPass). 0 hangs in 500 runs; quick gate green; PR #6840 queued. Memory: none applied.