45eee34faf
Test-side catch-up with the session-maybe conversation architecture: the provide channel's descriptor shape and maybeProvideInfo in fakes, the shared chat-store handle asserted on conversation.session (the session-maybe shell carries no store), startSession fakes exposing the workspace list snapshot, strict session slots declining (not throwing) without a session, AppFrame's removed empty seat and loading gate, and the hero draft asserted on the machine (the chat-store mirror binds with ConversationSession). Plus three lint fixes (max-len split, boolean-compare, arrow-parens/unbound-method).
@deepseek-ai/dsh-client-ui-layout
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Shell plugin: three-column AppFrame (drag handles and concession chain) plus the ctx.layout panel-geometry service; it registers into the runtime-owned root slot and declares sidebar, conversation, details, and conversation.empty. The sidebar is fixed-width (only details shrinks, then auto-closes); a closed sidebar retains a 56px control rail while details closes to zero width. The package also seats the theme presenter: it consumes resolved ctx.theme snapshots and projects them onto document.body (data-ds-dark-theme from the active color scheme plus the theme's alias tokens as inline variables).
AppFrame reads the runtime Session projection: baselinesReady selects loading, a page-local SessionListState.intent selects the empty composer, and a connected Session renders through SessionProvider. The conversation and empty-state owner shares are empty; each registrant obtains business data from standard hooks and actions from its own inject face. The sidebar owner share contains only collapsed and width; navigation actions belong to sidebar's own injected service face.
The /client export surface is the plugin body (apply/inject), LayoutService, and the four owner-share interfaces. AppFrame, the panel store, and the concession solver remain package-internal; tests import internals through /src.
Model Experience
None, as the layout shell manages browser viewing state; nothing here reaches a model request.
KV Cache effect
None; this package neither assembles nor sends a provider request.
Known Limitations and Deferred Work
- Details open/width state is global — it does not follow the session (arbitrated for P-I); the per-session keyed upgrade slot is reserved.
- Concession-chain auto-close derives a zero width without touching the persisted open flag — the panel restores itself when the window widens; consumers must not read
details.openas the rendered truth. - Scroll anchoring during squeeze reflow is not implemented — deferred with the virtualized-list project.