fix(headless): dsh run is a direct core front door

packages/client/ui-model/tests/browser-plugin.spec.ts

@@ -13,7 +13,7 @@ import { describe, expect, it } from 'vitest'
 import { createScope } from '@deepseek-ai/dsh-client-runtime/client'
 import type { SessionId } from '@deepseek-ai/dsh-client-runtime/client'
 import { LocaleService } from '@deepseek-ai/dsh-client-locale/client'
-import type { ModelTarget } from '@deepseek-ai/dsh-client-connection/client'
+import type { ModelSelection } from '@deepseek-ai/dsh-client-connection/client'
 import type { CommandContribution, SelectOption } from '@deepseek-ai/dsh-client-ui-command/client'
 import type { ModelSelectInjected } from '../src/client/slots.ts'
 import { apply, inject } from '../src/client/index.ts'
@@ -55,7 +55,7 @@ const GROUPS = [{
 /** Boot the plugin over fake faces + a stateful fake host (current moves on selectModel). */
 async function bench() {
   const ctx = new Context()
-  let current: ModelTarget = { provider: 'deepseek-official', model: 'deepseek-v4-flash' }
+  let current: ModelSelection = { provider: 'deepseek-official', model: 'deepseek-v4-flash' }
   const calls = { models: 0, select: 0 }
   ctx.provide('connection', { api: { sessions: {
     models: () => {
@@ -125,7 +125,7 @@ async function bench() {
     contribution: () => contribution!,
     seat: () => seats.get('conversation.input.model')!,
     hostCurrent: () => current,
-    setHostCurrent: (target: ModelTarget) => { current = target },
+    setHostCurrent: (selection: ModelSelection) => { current = selection },
     address: (id: SessionId) => { addressed.add(id) },
     setRoutable: (next: boolean) => { routable = next },
     blockOf: (key: string) => blocks.get(sid(key)),