The expand/collapse and wrap toggles' accessible names diverged from their
tooltips, and the replay harness now normalizes clientTimeZone in recorded
sessions; every golden holding the old names or the literal zone refreshes.
- Split toggle aria-labels from their tooltips: the sidebar expand/collapse
buttons announce "Open/Collapse right sidebar" so the two sidebars stay
distinguishable, and the wrap toggle keeps an invariant "Line wrap" name
beside aria-pressed while the tooltip keeps the action wording.
- A hidden tab close also takes no pointer events, so a touch press on the
chip's trailing edge activates the tab instead of closing it; e2e closes
hover the chip first, the way a reader would.
- Closing the last docked tab in fullscreen hands the mode back to push, so
the next expand does not give the whole window to the start page.
- The drop scrim mixes from bg-base, not bg-layer-2, which dark mode binds
to a lighter bluish step than the column beneath it.
- Document the menuitem probe in TabMenuExtras and the strip fade's known
gap; match the open-in-app split-button comment to the 28px control row.
The lone guide tab withholds its close and menu, any other lone tab closes
together with the column, and the expand button renders only while collapsed
so the corner seat costs the header nothing.
Merge 3ea52fc3e475a3e7c430812bde4209258416e57b into a0a61a8237f61344a01448a97954df603d8fff73. Retain the V2-to-V3 migration dependency alongside native system flock support, removing the replaced fs-ext dependency. Union the lockfile workspace importer entries; frozen installation validates the result without regeneration.
Preserve release publint async lane-signal cancellation, close ownership, and spawn-error regressions, satisfying the incoming CI budget intent. Keep canonical, prompt, preset, and latest migration regression behavior. Rename an arbitrary preset fixture value to custom-agent to avoid the inherited vendor-rescope false positive without changing test semantics.
Validation: frozen install; full build including Darwin addon; focused V3/persistence/prompt/publint and runtime tests; built migration, two-process lease, and loader smokes; native flock and package-matrix tests; touched dependency and CI owner tests; all hygiene leaves (vendor residue repaired and rechecked); doc-sync 34/34.
imccyu