Two polish defects from the headless verification pass:
- .newSessionLabel/.footLabel declared their own transition shorthand,
which replaced .wide's opacity fade entirely (shorthands do not merge) —
the labels vanished instantly while everything else faded. The fade is
restated alongside max-width.
- The rail icons drifted off a common vertical axis: the 56px track holds
a 55px content box (1px column border), and the capsule rows kept their
1px border-width in the collapsed state, shaving their content to 23px
and pushing the search icon 2px right. Collapsed capsules now zero the
border-width (transitioning border, not border-color), the root gives
back the border pixel via asymmetric padding, and every surviving row
centers its icon — five glyphs on the track's 28px center.
The collapse read as a hard cut: only the track width animated while the
panel content swapped instantly and the rail icons bore no relation to the
expanded layout. Now the four control rows persist across the transition —
collapse toggle, new session, new workspace, search, the same top-down
order as their expanded rows — and morph their geometry (row heights,
paddings, margins, capsule borders) on the deepsuite curve, so each rail
icon is its expanded control converging onto the 56px axis. Wide-only
content (brand, labels, input, session tree) cross-fades over 200ms, stays
mounted while the collapse animates, and unmounts at the 300ms settle,
still dropping the sessions subscription. The search query moves up to the
root and survives the round trip; rail search focuses the surviving input
after expand instead of remount-autofocus.
The collapsed rail becomes a 56px icon column (24px controls between 16px
paddings) carrying expand, new session, search, and new workspace — each
aligned with its expanded counterpart; rail search expands the sidebar and
focuses the search box. Collapse/expand now animates: the frame transitions
grid-template-columns (and the surviving handle its left) on the deepsuite
sider curve — --ds-ease-in-out over --ds-transition-duration-slow, supplied
by ui-theme's base sheet. Transitions pause during drags (data-dragging on
the frame, set for the whole gesture) and under prefers-reduced-motion.
Since the store engine moved into the client runtime, the ui-layout bundle
externalizes @deepseek-ai/dsh-client-runtime/client. This case's two-row
manifest (ui-layout + a deliberately absent probe) no longer boots ui-layout
at all: the unseeded runtime specifier fails it first, serial loading stops,
and the probe never reaches the failure list, so the assertion times out on
a premise the engine migration retired.
A closed sidebar previously resolved to a zero-width grid track, clipping
the only toggle and the settings entry with no visible recovery; the closed
preference persisted across reloads, locking the sidebar shut.
- columns.ts maps the closed preference (width 0) to a fixed 60px
SIDEBAR_COLLAPSED rail through every step of the concession solve;
closed details still resolve to zero width.
- AppFrame derives data-sidebar-collapsed and the sidebar slot's collapsed
owner prop from the persisted preference instead of the resolved track
width, and drops the resize handle while collapsed.
- SidebarRoot reads the owner collapsed prop; the expanded-only body is a
separate component that unmounts while collapsed (dropping its sessions
subscription), leaving the expand toggle and Settings in the rail.
- The keyless web smoke gains the ui-sidebar bundle (six real bundles) and
pins the 60px rail collapse/expand round through the assembled client.
The store migration (#538) parked the engine in a store/ sibling domain;
loader and sessions imported it directly, tripping verify-client-domain-graph
(cross-domain shared surface must route through contract/). The engine is
layer-0 shared infrastructure by definition, so it moves to contract/store.ts
verbatim; the four importers and the spec follow mechanically.
Three notes stated tsconfig.build.json as present-tense fact; the
aggregates (tsconfig.host.json / tsconfig.client.json) now own the
explicit reference lists and the root solution owns the emit graph.
Historical narration in dated notes is left untouched.
Tianyi Cui
imccyu