feat(web): name the agent-preset surface "Agent 预设" in Chinese

The Chinese copy was mixed: the nav read 智能体 while every other string kept
`preset` untranslated (本会话的 agent preset, 新建 preset, preset 名称).
It is now one register throughout — Agent stays, preset becomes 预设, the
standard Chinese UI word for a named, switchable configuration bundle, which
is what a preset is when a session picks one.

UI copy only. The docs keep `agent preset` as the technical term for the
composition and the `agent-presets` plugin.

packages/client/ui-agent-preset/src/client/locales.ts

@@ -52,15 +52,15 @@ export const en: Record<AgentPresetSettingsKey, string> = {
 
 /** Simplified Chinese copy. */
 export const zh: Record<AgentPresetSettingsKey, string> = {
-  title: 'Agent preset',
+  title: 'Agent 预设',
   description: '对此后新建的会话生效。运行中的会话保持它开始时的 preset。',
-  loading: '正在加载 preset…',
-  error: '无法加载 agent preset。',
+  loading: '正在加载预设…',
+  error: '无法加载 Agent 预设。',
   userTrust: '本地',
-  seatHint: '本会话的 agent preset —— 发送第一条消息前可切换',
-  lockedHint: '会话开始后，其 agent preset 即固定',
-  nav: '智能体',
-  sectionIntro: 'preset 即一个会话的 agent 所运行的插件组装 —— 它的工具、提示词与能力。内置 preset 只读；复制一份即可改成自己的。',
+  seatHint: '本会话的 Agent 预设 —— 发送第一条消息前可切换',
+  lockedHint: '会话开始后，其 Agent 预设即固定',
+  nav: 'Agent 预设',
+  sectionIntro: '预设即一个会话的 Agent 所运行的插件组装 —— 它的工具、提示词与能力。内置预设只读；复制一份即可改成自己的。',
   builtIn: '内置',
   defaultBadge: '默认',
   setDefault: '设为默认',
@@ -68,21 +68,21 @@ export const zh: Record<AgentPresetSettingsKey, string> = {
   view: '查看',
   duplicate: '复制',
   delete: '删除',
-  newPreset: '新建 preset',
-  presetName: 'preset 名称',
+  newPreset: '新建预设',
+  presetName: '预设名称',
   presetNamePlaceholder: 'my-agent',
   copyOf: '复制自',
   composition: '组装（cordis.yml）',
-  readOnlyNotice: '该 preset 随部署提供，不可编辑。复制一份即可改成自己的。',
+  readOnlyNotice: '该预设随部署提供，不可编辑。复制一份即可改成自己的。',
   save: '保存',
   saving: '正在保存…',
   cancel: '取消',
   close: '关闭',
   retry: '重试',
-  idRequired: '请填写 preset 名称。',
+  idRequired: '请填写预设名称。',
   idInvalid: '只能使用小写字母、数字与连字符，且以字母或数字开头。',
-  idTaken: '同名 preset 已存在。',
-  deleteTitle: '删除该 preset？',
+  idTaken: '同名预设已存在。',
+  deleteTitle: '删除该预设？',
   deleteDescription: '组装文件将被删除。已在其上运行的会话不受影响；新会话将无法再选择它。',
   deleteConfirm: '删除',
   deleting: '正在删除…',

packages/client/ui-agent-preset/tests/apply.spec.ts

@@ -91,7 +91,7 @@ describe('ui-agent-preset apply', () => {
     expect(section.component).toBe(AgentPresetSection)
     expect(section.options).toMatchObject({ id: 'agent-presets', order: 20 })
     // The nav label is a locale-following thunk; owners resolve it at read time.
-    expect(resolveSlotLabel(section.options.label)).toBe('智能体')
+    expect(resolveSlotLabel(section.options.label)).toBe('Agent 预设')
   })
 
   it('registers into a declaration that arrives after apply', async () => {