新增: F-01阶段6 AiChat模型下拉+override穿透

src/i18n/en/aiChat.ts

@@ -41,6 +41,14 @@ export default {
     providerNotConfigured: 'No AI provider configured. Please add one in settings.',
     notConfigured: 'Not configured',
 
+    // ── F-01 阶段6: model picker (auto/specify toggle + dropdown) ──
+    autoMode: 'Auto',
+    specifyMode: 'Specify',
+    autoModeHint: 'Auto mode: router picks the best model per scenario',
+    specifyModeHint: 'Specify mode: use the selected model, overriding the router (main chat only)',
+    selectModel: 'Select model',
+    noModels: 'No models available. Please fetch in settings.',
+
     // ── Empty states (UX-2025-20: example prompt cards + no-provider guidance) ──
     emptyNoProvider: 'No AI provider configured',
     emptyNoProviderHint: 'Please add a provider in settings to start chatting',

src/i18n/zh-CN/aiChat.ts

@@ -41,6 +41,14 @@ export default {
     providerNotConfigured: '未配置 AI 提供商，请在设置中添加',
     notConfigured: '未配置',
 
+    // ── F-01 阶段6: 模型选择器(自动/指定 toggle + 下拉) ──
+    autoMode: '自动',
+    specifyMode: '指定',
+    autoModeHint: '自动模式：路由器按场景自动选最优模型',
+    specifyModeHint: '指定模式：使用下拉所选模型覆盖路由(仅主对话)',
+    selectModel: '选择模型',
+    noModels: '无可用模型，请在设置中拉取',
+
     // ── 空状态(UX-2025-20:示例问题卡片 + 无 provider 引导) ──
     emptyNoProvider: '未配置 AI 提供商',
     emptyNoProviderHint: '请在设置中添加 Provider 后开始对话',