feat: Beta策略支持按模型区分处理（模型白名单）

frontend/src/i18n/locales/en.ts

@@ -4587,7 +4587,19 @@ export default {
         errorMessagePlaceholder: 'Custom error message when blocked',
         errorMessageHint: 'Leave empty for default message',
         saved: 'Beta policy settings saved',
-        saveFailed: 'Failed to save beta policy settings'
+        saveFailed: 'Failed to save beta policy settings',
+        modelWhitelist: 'Model Whitelist',
+        modelWhitelistHint: 'Leave empty to apply to all models. Supports exact match and wildcard prefix (e.g., claude-opus-*)',
+        modelPatternPlaceholder: 'e.g., claude-opus-* or claude-opus-4-6',
+        addModelPattern: 'Add model pattern',
+        removePattern: 'Remove',
+        fallbackAction: 'Fallback Action',
+        fallbackActionHint: 'Action for models not matching the whitelist',
+        fallbackErrorMessagePlaceholder: 'Custom error message when non-whitelisted models are blocked',
+        quickPresets: 'Quick Presets',
+        presetOpusOnly: 'Opus only for 1M',
+        presetOpusOnlyDesc: 'Pass for Opus, filter others',
+        commonPatterns: 'Common patterns'
       },
       saveSettings: 'Save Settings',
       saving: 'Saving...',

frontend/src/i18n/locales/zh.ts

@@ -4751,7 +4751,19 @@ export default {
         errorMessagePlaceholder: '拦截时返回的自定义错误消息',
         errorMessageHint: '留空则使用默认错误消息',
         saved: 'Beta 策略设置保存成功',
-        saveFailed: '保存 Beta 策略设置失败'
+        saveFailed: '保存 Beta 策略设置失败',
+        modelWhitelist: '模型白名单',
+        modelWhitelistHint: '留空则对所有模型生效。支持精确匹配和通配符前缀（如 claude-opus-*）',
+        modelPatternPlaceholder: '例如: claude-opus-* 或 claude-opus-4-6',
+        addModelPattern: '添加模型规则',
+        removePattern: '移除',
+        fallbackAction: '未匹配模型处理方式',
+        fallbackActionHint: '当请求模型不在白名单中时的处理方式',
+        fallbackErrorMessagePlaceholder: '未匹配模型被拦截时返回的自定义错误消息',
+        quickPresets: '快捷预设',
+        presetOpusOnly: '仅 Opus 允许 1M',
+        presetOpusOnlyDesc: 'Opus 透传，其他模型过滤',
+        commonPatterns: '常用模式'
       },
       saveSettings: '保存设置',
       saving: '保存中...',