feat(host,client): ship the in-app directory browser as the browse package's client half

directory-picker-browse becomes dual-face: its browser half fills
ui-workspace's two directory-flow holes with the Select Workspace Directory
dialog (figma Harness 813-23126 family — Miller two-column view, breadcrumb
with click-to-edit path zone, nested New-folder dialog), driving the node
half's host.listDirectory/host.createDirectory and owning its locale
namespace (directory-browser, zh default / en). The dialog moves here from
ui-workspace wholesale — the trigger surfaces keep only the flow-hole owner
conversation.

apps/cli flips its one directory-picker row -native -> -browse, swapping the
host backend and the client interaction together; picking now works for
remote deployments out of the box. The keyless workspace-flow snapshot boots
the browse bundle and drives menu -> dialog -> Documents -> project -> Open
against the fixture tree.

apps/cli/cordis.yml

@@ -243,9 +243,9 @@
 # Directory-picking package, dual-face: the node half serves the gateway's
 # host.* picker RPCs, the browser half fills ui-workspace's directory-flow
 # slots — one row composes the whole interaction. Swap point: mount
-# '-browse' instead for the in-app browser (remote-capable).
+# '-native' instead for the host-display OS chooser.
 - id: directory-picker
-  name: '@deepseek-ai/dsh-host-directory-picker-native'
+  name: '@deepseek-ai/dsh-host-directory-picker-browse'
 
 - id: api-gateway
   name: '@deepseek-ai/dsh-host-apiproxy'

apps/cli/package.json

@@ -48,7 +48,7 @@
     "@deepseek-ai/dsh-fs-local": "workspace:^",
     "@deepseek-ai/dsh-fs-policy": "workspace:^",
     "@deepseek-ai/dsh-host-apiproxy": "workspace:^",
-    "@deepseek-ai/dsh-host-directory-picker-native": "workspace:^",
+    "@deepseek-ai/dsh-host-directory-picker-browse": "workspace:^",
     "@deepseek-ai/dsh-host-webserver": "workspace:^",
     "@deepseek-ai/dsh-llm": "workspace:^",
     "@deepseek-ai/dsh-llm-deepseek": "workspace:^",

apps/web/tests/workspace-flow.snapshot.ts

@@ -40,11 +40,11 @@ const PLUGINS: readonly (WebBootEntry & { dir: string })[] = [
   // Dual-face host package: its browser half fills the directory-flow holes
   // (the same composition row apps/cli mounts for the node-side backend).
   {
-    id: '@deepseek-ai/dsh-host-directory-picker-native',
-    dir: '../host/directory-picker-native',
-    url: '/plugins/directory-picker-native.js',
+    id: '@deepseek-ai/dsh-host-directory-picker-browse',
+    dir: '../host/directory-picker-browse',
+    url: '/plugins/directory-picker-browse.js',
     rev: 'fx',
-    inject: ['@deepseek-ai/dsh-client-runtime', '@deepseek-ai/dsh-client-ui-workspace'],
+    inject: ['@deepseek-ai/dsh-client-runtime', '@deepseek-ai/dsh-client-ui-workspace', '@deepseek-ai/dsh-client-locale'],
   },
 ]
 
@@ -183,7 +183,7 @@ it('locks the composer in the New Session view state until a Workspace is chosen
   `)
 })
 
-it('adopts a directory through the composed native flow and lands in its blank session', async () => {
+it('adopts a directory through the composed in-app browse flow and lands in its blank session', async () => {
   boot('?fixture=empty')
 
   await findLockedComposer()
@@ -194,9 +194,12 @@ it('adopts a directory through the composed native flow and lands in its blank s
   expect(within(menu).getAllByRole('menuitem').map(item => visibleText(item)))
     .toEqual(['Open local folder…', 'Create a new workspace'])
   fireEvent.click(within(menu).getByRole('menuitem', { name: 'Open local folder…' }))
-  // The renderless native flow drives the fixture's deterministic pick and
-  // the owner adopts the returned path into a real Workspace.
-  await act(async () => {})
+  // The browse occupant renders the Select Workspace Directory dialog at the
+  // fixture home; select Documents, advance into project, and adopt it.
+  const dialog = await screen.findByRole('dialog', { name: '选择工作区目录' })
+  fireEvent.click(await within(dialog).findByRole('listitem', { name: /Documents/ }))
+  fireEvent.click(await within(dialog).findByRole('listitem', { name: /^project/ }))
+  fireEvent.click(within(dialog).getByRole('button', { name: '打开' }))
   await findHeroComposer()
   await waitFor(() => {
     expect(visibleText(screen.getByRole('tree', { name: 'Sessions' }))).toContain('project')