spike(A): publish apes:profile as an official right-sidebar tab type

Phase A spike of the C8 root fix: instead of only rendering in the fork's
own shell, apes:profile now also registers with DSH's OFFICIAL right
sidebar through its documented two-stage extension protocol:

  1. ctx.sidebarRightTabs.register({ id, kind, priority:'extension',
     title, guide })  — the type declaration
  2. ctx.slots.inject('sidebar.right.pane.tab', () => ctx.slots.register(
     { name:'sidebar.right.pane.tab', key: id }, Body))  — the keyed body

The registry is reached through ctx.inject(['sidebarRightTabs'], ...) (the
same pattern intercept.tsx uses for the async remote.session namespace), so
activation order cannot strand the bridge and a deployment without the
official sidebar stays a silent no-op — the fork's own shell is untouched.

The body reuses the existing ApesProfileView (content is shared, never
duplicated); only the shell-scope binding differs. Guide entry order 70
keeps the apes trio's position in the official entry list.

Verified: typecheck clean; build clean; 1255 passed / 9 skipped (120 files,
6 new bridge specs pinning the two-stage contract, both no-op paths, and the
HMR-safe unwind).

Local commit only — not pushed until the in-app spike is confirmed.

src/client/apes/locales.ts

@@ -33,6 +33,8 @@ export const apesZh = {
   apesProfileNoCwd: '未知',
   apesProfileRunning: '运行中',
   apesProfileIdle: '空闲',
+  /** Guide-page capsule description (official right sidebar's entry list). */
+  apesProfileGuideDesc: '当前会话的身份与工作目录',
   // Apps view
   apesAppsNoFeed: '当前 DSH 版本未提供工作区应用数据源',
   apesAppsWorkspace: '工作区',
@@ -54,6 +56,7 @@ export const apesEn: Record<keyof typeof apesZh, string> = {
   apesProfileNoCwd: 'unknown',
   apesProfileRunning: 'running',
   apesProfileIdle: 'idle',
+  apesProfileGuideDesc: "This session's identity and working directory",
   apesAppsNoFeed: 'This DSH version exposes no workspace-app feed',
   apesAppsWorkspace: 'Workspace',
 }

src/client/apes/native-tabs.tsx

@@ -0,0 +1,187 @@
+/**
+ * Native right-sidebar bridge (Phase A spike) — registers apes:* tabs as
+ * OFFICIAL `@deepseek-ai/dsh-client-ui-sidebar-right` tab types through the
+ * public two-stage protocol its README documents:
+ *
+ *   1. TYPE — `ctx.sidebarRightTabs.register({ id, kind, priority, title, guide? })`
+ *      a static declaration with no runtime hooks; the `id` is the type's
+ *      identity in the tab system AND the key its body registers under.
+ *   2. BODY — `ctx.slots.inject('sidebar.right.pane.tab', () => ctx.slots.register(
+ *      { name: 'sidebar.right.pane.tab', key: <id> }, Body))`
+ *      the keyed seat dispatches a tab's body to the type registered for its
+ *      `kind`; the body reads `useTabInfo()` (injected by the seat) for
+ *      `{ sidebar, panel, tab }`.
+ *
+ * ACTIVATION ORDER — `sidebarRightTabs` is installed by that package's own
+ * `apply()` through `ctx.reflect.provide(...)`, so it may not exist yet when
+ * our plugin activates. We therefore reach it through `ctx.inject(['sidebarRightTabs'], …)`
+ * (the same pattern intercept.tsx uses for the async `remote.session`
+ * namespace): the callback runs when the service exists and re-runs after a
+ * remount, so the bridge is order-independent and HMR-safe. Deployments
+ * without the official right sidebar simply never see the callback — the
+ * fork's own shell stays the only surface, which is also what the render-time
+ * `guide`/type registration tolerates.
+ *
+ * SCOPE — the spike registers exactly ONE tab (`apes:profile` / 画像) to prove
+ * the path end-to-end before deciding on the full nine-tab migration. The
+ * existing `service.registerTab` route in `tabs.tsx` is deliberately left
+ * untouched, so both surfaces coexist during the spike and the whole spike
+ * reverts by deleting this file plus its one call site.
+ *
+ * Side effect worth knowing (inherent to the official default-page rule): the
+ * dock's default page depends on how many guide entries are registered —
+ * exactly one auto-opens it, zero or many open the guide page. Our guide entry
+ * therefore turns a fresh-empty dock from "Files" into the guide page listing
+ * every entry capsule.
+ */
+import { useMemo, type ReactNode } from 'react'
+import { IconUserOutline16 } from './icons.tsx'
+import { t } from './locales.ts'
+import { ApesProfileView } from './tabs.tsx'
+import type { TabComponentProps } from '../service.ts'
+
+/** The apes type's identity in the official tab system. Package-scoped so it
+ *  can never collide with a native or third-party registration. */
+const PROFILE_ID = 'dsh-apes-sidebar/profile'
+/** The kind the panel opens the tab with (`openTab(kind)`); `apes:` prefixed so
+ *  it reads as ours in the official registry. */
+const PROFILE_KIND = 'apes:profile'
+
+/** The official registry's definition shape (the subset we use). */
+interface NativeTabDefinition {
+  id: string
+  kind: string
+  priority?: 'builtin' | 'extension' | 'fallback'
+  title: () => string
+  guide?: Array<{
+    order: number
+    title: () => string
+    description?: () => string
+    icon?: (props: { size?: number; className?: string }) => ReactNode
+  }>
+}
+
+/** The registry service face the official package provides. */
+interface NativeTabRegistry {
+  register(definition: NativeTabDefinition): () => void
+}
+
+/** The slots service face (structural subset of `@deepseek-ai/dsh-client-ui-slots`). */
+interface NativeSlots {
+  inject(key: string, callback: () => () => void): () => void
+  register(options: {
+    name: string
+    key?: string
+    locale?: string
+    inject?: (...args: unknown[]) => Record<string, unknown>
+  }, component: (props: Record<string, unknown>) => ReactNode): () => void
+}
+
+/** What the seat hands a tab body in addition to our own injected props. */
+interface NativeTabBodyProps {
+  useTabInfo?: () => unknown
+  sessionId?: string
+  ctx: TabComponentProps['ctx']
+}
+
+/** The tab info the seat's `useTabInfo()` hook returns (the subset we read). */
+interface NativeTabInfo {
+  sidebar?: { expanded?: boolean; fullscreen?: boolean }
+  panel?: { id?: string }
+  tab?: { id?: string; title?: string; visible?: boolean }
+}
+
+/** Fallback reader for an absent seat hook (never in production — the seat
+ *  always injects `tabInfo`; this keeps the body hook-safe either way, since
+ *  the fallback calls no hooks of its own). */
+function fallbackTabInfo(): NativeTabInfo {
+  return { sidebar: { expanded: true }, panel: { id: '' }, tab: { visible: true } }
+}
+
+/**
+ * The official surface's body for 画像: the SAME `ApesProfileView` the fork
+ * already ships, re-bound to the official tab scope. The view reads only
+ * `props.ctx` (the sessions feed) and `props.scope` (sessionId / cwd), so the
+ * shell-only props are filled with placeholders — which is the spike's whole
+ * point: the panel content is shared, never duplicated.
+ */
+function ProfileNativeBody(props: NativeTabBodyProps): ReactNode {
+  const useInfo = props.useTabInfo ?? fallbackTabInfo
+  const info = useInfo() as NativeTabInfo | undefined
+  const sessionId = props.sessionId
+    ?? props.ctx.sessions.list.getSnapshot().current
+    ?? ''
+  const scope = useMemo(() => ({ sessionId }), [sessionId])
+  const viewProps = {
+    ctx: props.ctx,
+    scope,
+    visible: info?.tab?.visible ?? true,
+    store: undefined,
+    tab: {
+      id: info?.tab?.id ?? PROFILE_ID,
+      type: PROFILE_KIND,
+      title: info?.tab?.title ?? t('apesProfileTitle'),
+    },
+  } as unknown as TabComponentProps
+  return <ApesProfileView {...viewProps} />
+}
+
+/**
+ * Register the apes:profile tab as an official right-sidebar tab type.
+ * @param ctx — the client context whose `inject` waits for the registry service.
+ * @returns a disposer that disposes the inject fiber (which unwinds both stages).
+ */
+export function registerApesNativeTabs(ctx: unknown): () => void {
+  const anyCtx = ctx as {
+    inject?: (deps: string[], callback: (fctx: unknown) => void) => { dispose(): void }
+  }
+  if (typeof anyCtx.inject !== 'function') return () => {}
+  const fiber = anyCtx.inject(['sidebarRightTabs'], (fctx: unknown) => {
+    const inner = fctx as {
+      get?: (name: string) => unknown
+      slots?: NativeSlots
+      effect?: (callback: () => () => void, label?: string) => unknown
+    }
+    const registry = inner.get?.('sidebarRightTabs') as NativeTabRegistry | undefined
+    const slots = inner.slots
+    if (registry === undefined || slots === undefined || typeof inner.effect !== 'function') return
+    inner.effect(() => {
+      const disposers: Array<() => void> = []
+      try {
+        // Stage 1 — the type. A page type: it recognizes no resource address
+        // and is opened by kind; `extension` is the band for types contributed
+        // from outside the product (highest rank, so it can also take over a
+        // builtin of the same kind).
+        disposers.push(registry.register({
+          id: PROFILE_ID,
+          kind: PROFILE_KIND,
+          priority: 'extension',
+          title: () => t('apesProfileTitle'),
+          guide: [{
+            order: 70,
+            title: () => t('apesProfileTitle'),
+            description: () => t('apesProfileGuideDesc'),
+            icon: IconUserOutline16,
+          }],
+        }))
+        // Stage 2 — the body, dispatched through the keyed seat. `inject`
+        // hands the body the client context the view reads its feed from.
+        disposers.push(slots.inject('sidebar.right.pane.tab', () => slots.register({
+          name: 'sidebar.right.pane.tab',
+          key: PROFILE_ID,
+          inject: () => ({ ctx }),
+        }, ProfileNativeBody as unknown as (props: Record<string, unknown>) => ReactNode)))
+      } catch (error) {
+        // A half-registered bridge must never take the fork's own sidebar
+        // down: unwind what landed and let the own-shell surface carry on.
+        console.error('[dsh-apes-sidebar] native right-sidebar registration failed:', error)
+      }
+      return () => {
+        for (const dispose of disposers.reverse()) {
+          try { dispose() } catch { /* already disposed */ }
+        }
+      }
+    }, 'dsh-apes-sidebar: apes native tab (profile)')
+  })
+  return () => { void fiber.dispose() }
+}

src/client/apes/tabs.tsx

@@ -164,7 +164,7 @@ function ApesAgentsView(props: TabComponentProps) {
 }
 
 /** apes:profile — the current session's identity (title, cwd, running state). */
-function ApesProfileView(props: TabComponentProps) {
+export function ApesProfileView(props: TabComponentProps) {
   const list = useSessionList(props.ctx)
   const current = list.current
   const summary = current === undefined ? undefined : list.byId[current]

src/client/index.tsx

@@ -16,6 +16,7 @@ import { createBetterSidebarService, matchUrlTarget } from './service.ts'
 import { revalidateChunksOnReactivate, setChunkModuleSystem } from './chunk-loader.ts'
 import { registerBuiltins } from './builtins/index.ts'
 import { registerApesTabs, APES_LOCALE_NS, apesZh, apesEn, attachApesLocale } from './apes/index.ts'
+import { registerApesNativeTabs } from './apes/native-tabs.tsx'
 import { Sidebar } from './Sidebar.tsx'
 import { RenderBoundary } from './RenderBoundary.tsx'
 import { registerOpenPathInterception, registerTurnTailInterception } from './intercept.tsx'
@@ -180,6 +181,16 @@ export function apply(ctx: Context): void {
     () => registerApesTabs(ctx, service),
     'dsh-apes-sidebar: register apes tabs',
   )
+  // Phase A spike: also publish apes:profile as an OFFICIAL right-sidebar tab
+  // type (ctx.sidebarRightTabs + the keyed `sidebar.right.pane.tab` seat), so
+  // the tab renders inside DSH's own panel instead of only in the fork's
+  // shell. Both surfaces coexist during the spike; the disposer reverses the
+  // two-stage registration on fiber disposal (HMR-safe). A throw is caught
+  // inside the bridge and never reaches this effect.
+  ctx.effect(
+    () => registerApesNativeTabs(ctx),
+    'dsh-apes-sidebar: apes native right-sidebar tabs',
+  )
   // A failure anywhere in the client lifecycle must never take the app down
   // silently: log with the plugin prefix and pin a visible diagnostic strip
   // to the page so a blank panel is never the only symptom.