* Upgrade to Expo 57 and unify Explorer across layouts
* feat(app): retain Explorer across layout and appearance changes
Keep one workspace Explorer host and destination-aware navigation so folding, theme updates and compact sheets preserve the current panel. Scope pull request discovery and timeline demand to active surfaces.
* fix(app): keep Explorer resize handles stretched through the dock
The shared frame moved the divider into an absolute column, leaving its horizontal handle without height. Restore the row so pointer drags reach it, preserving the existing resize and performance contract.
* fix(app): keep Explorer drag widths out of the shared stylesheet
Carry the existing inline sizing policy into the shared frame so pointer previews do not accumulate CSS rules.
* fix(test): align isolated test runtimes with Expo 57
Hoisted React consumers need the matching DOM renderer at the repository root. Automated Metro processes must not install native DevTools into disposable homes, and development toast overlays must not cover compact actions.
Keep Explorer journeys on the shared host and synchronize setup fixtures on daemon output rather than a one-second file-marker window. A delayed real child start reproduces the readiness failure on every platform.
* fix(test): await retained shell layout after composer resize
The gesture host now stays mounted across breakpoints, so its presence no longer identifies compact layout. Report the current layout on the retained host and synchronize composer journeys with that state.
* fix(app): preserve browser interactions in retained workspace hosts
Initially disabled gesture hosts still registered pointer and wheel listeners, while hover cards used window positions inside a workspace-local sheet portal. Respect initial gesture enablement and position cards relative to their measured floating host.
Keep developer-toast dismissal independent of pointer input and replacement toast visibility so modal, hover, and focus checks retain their input state.
* fix(test): share developer toast handling with Electron browser runs
The standalone Electron browser runner bypassed the browser fixture, allowing developer errors to cover Settings. Use the same non-pointer dismissal in both runners while retaining their console logs.
* feat(app): let the file panel close its tree rail
The file panel's tree rail was permanent on desktop — the changes panel
had a folder-tree toggle in its toolbar, the file toolbar had nothing, so
the rail was there whether you wanted it or not.
The changes panel's private DesktopTreeToggle becomes a shared
TreeRailToggle so both toolbars render the same affordance; that also
drops the treeToggleStyle prop threaded through ChangesToolbarProps,
which recomputed exactly what the component already built internally.
The i18n keys move out of workspace.git.diff into workspace.tree, since a
shared component reaching into the git namespace would rot.
The two rails keep independent flags — the file rail in panel-store, the
changes rail in useChangesPreferences — so closing one leaves the other
alone. FileTreeToggle wires itself to the store rather than taking a
callback: the bar renders several components below FilePanel, where the
rail actually lives.
Both rails also get narrower (320 -> 260 default, 200 -> 180 minimum).
The persist version bump resets treeRailWidth on purpose: nearly every
existing install carries the old 320 default, so without the reset the
narrower rail would only ever reach new users. Anyone who dragged their
rail to a deliberate custom width loses it once.
Note that MIN_CONTENT_WIDTH still clamps the rail to
`containerWidth - 240`, so in a narrow pane the new default never
applies — that floor, not the default, is what sets the width there.
* feat(app): make the side panel an empty workspace surface
The fixed, hideable side panel keeps supporting context beside an agent without seeding content. Pane-local choices stay local, while implicit supporting opens follow a persisted routing preference.
* test(app): exercise side panel policy through its capability boundary
The browser rail journey already covers the real tree-toggle behavior. Side-panel policy tests now pass their platform capability through the public boundary instead of replacing a production module.
* test(app): expect an empty side panel after upgrade
* test(app): expect an empty first split pane
* test(app): account for the empty side panel in split retention
* feat(app): make workspace panel tabs independent
Give explicit New actions fresh tab instances, keep panel state opaque to tab management, preserve File navigation context, and stabilize uncached File transitions.
* fix(app): preserve file conflicts during preview refresh
Keep the current preview mounted for same-target reads and conversions so the editor retains its conflict observation state. Clear retained previews only when the file target changes.
* feat(app): add persistent workspace side panes
Keep the common review and file-browsing workflow beside the active agent without tearing down pane contents. Workspace tabs now share one compact chip language, assistant file links route into the retained right pane, and diff/file trees share stable geometry.
* fix(app): localize pull request empty state
* test(app): update explorer pane coverage
* fix(app): preserve explorer pane workflows
* test(app): make explorer tab selection idempotent
* fix(app): persist workspace review pins
* fix(app): preserve sidebar scrim drag hook
* fix(app): restore companion pane interactions
* test(app): follow selected sidebar surface
Mohamed Boudra