fix: enable frosted glass effect by default

UI-DESIGN.md

@@ -43,7 +43,7 @@
 
 两种主题必须保持相同的信息层级，但不要求机械地反转明暗。浅色主题以白色主内容画布、冰蓝灰侧栏和轻微着色的顶栏建立空间关系；深色主题使用深海军蓝与蓝灰表面逐层提亮，避免纯黑。蓝色承担主要选择和交互，青绿色主要承担成功与可用状态，二者不得混用语义。
 
-外观设置提供“透明磨砂特效”开关，当前默认关闭，文字在左、共享 Switch 在右。选择保存在应用设置中，保存成功后立即生效，重启后恢复。开启时，右侧内容框架顶栏的背景不透明度在浅色主题为 65%、深色主题为 70%，保留 18px 背景模糊与淡分隔线。聊天滚动视口向上延伸 58px，消息上滚时实际经过顶栏背后；不使用人工渐变充当背景。初始留白放在滚动内容中，包含顶栏高度和当前任务／待办条的实测高度，首条消息仍从这些控件下方开始。任务／待办条固定在顶栏下方并保持实色；展开的 Runtime 待办卡片使用两主题各自的 75% 不透明背景、18px 背景模糊和清晰的文字颜色。
+外观设置提供“透明磨砂特效”开关，默认开启，文字在左、共享 Switch 在右。新用户及缺少该字段的旧配置使用开启状态；已保存的开关选择保持不变。选择保存在应用设置中，保存成功后立即生效，重启后恢复。开启时，右侧内容框架顶栏的背景不透明度在浅色主题为 65%、深色主题为 70%，保留 18px 背景模糊与淡分隔线。聊天滚动视口向上延伸 58px，消息上滚时实际经过顶栏背后；不使用人工渐变充当背景。初始留白放在滚动内容中，包含顶栏高度和当前任务／待办条的实测高度，首条消息仍从这些控件下方开始。任务／待办条固定在顶栏下方并保持实色；展开的 Runtime 待办卡片使用两主题各自的 75% 不透明背景、18px 背景模糊和清晰的文字颜色。
 
 已保存的开关状态同步到文档根节点，卸载时清理，使 body/top layer 中的待办卡片也能应用样式；其他菜单保持原有表面。输入区、右侧工作栏和非聊天页面保持原有位置，聊天加载态及无活动消息面板时不扩展视口。窗口拖拽和控制按钮保持原有行为；该效果不透出操作系统桌面。关闭后恢复顶栏下方的聊天布局，顶栏与待办卡片均恢复实色。`tests/frosted-glass.electron.test.ts` 使用真实 `ChatHistoryPane` 检查消息与顶栏的可见矩形交叠、初始留白、关闭恢复、浅深主题、跳底、历史加载锚点和会话切换。
 

src/main/application-settings-store.test.ts

@@ -75,18 +75,18 @@ describe('ApplicationSettingsStore', () => {
     }
   })
 
-  it.each([11, 12])('defaults missing frosted glass to off in version %s', async (version) => {
+  it.each([11, 12])('defaults missing frosted glass to on in version %s', async (version) => {
     const { filePath, store } = await createStore()
     const legacy: Record<string, unknown> = { ...defaultApplicationSettings, version, lastSeenReleaseNotesVersion: null, checkUpdatesOnStartup: false }
     delete legacy.transparentFrostedEffectEnabled
     await writeFile(filePath, JSON.stringify(legacy))
     expect(await store.get()).toEqual({ ...defaultApplicationSettings, checkUpdatesOnStartup: false })
-    expect(applicationSettingsSchema.parse({ ...defaultApplicationSettings, transparentFrostedEffectEnabled: undefined }).transparentFrostedEffectEnabled).toBe(false)
+    expect(applicationSettingsSchema.parse({ ...defaultApplicationSettings, transparentFrostedEffectEnabled: undefined }).transparentFrostedEffectEnabled).toBe(true)
   })
 
   it('persists and publishes both frosted glass choices across unrelated updates and reloads', async () => {
     const { filePath, store } = await createStore()
-    expect((await store.get()).transparentFrostedEffectEnabled).toBe(false)
+    expect((await store.get()).transparentFrostedEffectEnabled).toBe(true)
     const changed = vi.fn()
     store.onChanged(changed)
     for (const transparentFrostedEffectEnabled of [true, false]) {

src/main/application-settings-store.ts

@@ -251,7 +251,7 @@ export const resolveLegacyLocalToolEnvironmentPaths: LegacyLocalToolEnvironmentR
 export const defaultApplicationSettings: ApplicationSettings = {
   checkUpdatesOnStartup: true,
   desktopNotificationsEnabled: true,
-  transparentFrostedEffectEnabled: false,
+  transparentFrostedEffectEnabled: true,
   updateSource: 'github',
   modelDownloadSource: 'modelscope',
   localToolEnvironment: defaultLocalToolEnvironmentSettings,

src/renderer/src/App.tsx

@@ -11173,7 +11173,7 @@ function App(): React.JSX.Element {
                   <Suspense fallback={null}>
                     <SettingsPanel
                       appearanceTheme={appearanceTheme}
-                      transparentFrostedEffectEnabled={applicationSettings?.transparentFrostedEffectEnabled ?? false}
+                      transparentFrostedEffectEnabled={applicationSettings?.transparentFrostedEffectEnabled ?? true}
                       applicationSettingsPending={applicationSettingsPending}
                       applicationSettingsLocked={applicationSettingsUnconfirmed || !applicationSettings}
                       applicationSettingsError={applicationSettingsError}

src/renderer/src/SettingsPanel.test.tsx

@@ -1583,17 +1583,17 @@ describe('SettingsPanel runtime files', () => {
     const { rerender } = render(<SettingsPanel {...props} />)
     fireEvent.click(screen.getByRole('tab', { name: category }))
     const toggle = screen.getByRole('switch', { name: label })
-    expect(toggle).not.toBeChecked()
+    expect(toggle).toBeChecked()
     expect(toggle).toHaveAccessibleDescription(description)
     expect(toggle.closest('label')).toHaveClass('toggle-row')
     fireEvent.click(toggle)
-    expect(onChange).toHaveBeenCalledExactlyOnceWith(true)
-    rerender(<SettingsPanel {...props} transparentFrostedEffectEnabled applicationSettingsPending />)
-    expect(toggle).toBeChecked()
+    expect(onChange).toHaveBeenCalledExactlyOnceWith(false)
+    rerender(<SettingsPanel {...props} transparentFrostedEffectEnabled={false} applicationSettingsPending />)
+    expect(toggle).not.toBeChecked()
     expect(toggle).toBeDisabled()
-    rerender(<SettingsPanel {...props} transparentFrostedEffectEnabled />)
+    rerender(<SettingsPanel {...props} transparentFrostedEffectEnabled={false} />)
     fireEvent.click(toggle)
-    expect(onChange).toHaveBeenLastCalledWith(false)
+    expect(onChange).toHaveBeenLastCalledWith(true)
   })
 
   it.each([

src/renderer/src/SettingsPanel.tsx

@@ -656,7 +656,7 @@ export function SettingsPanel({
   onClearLocalData,
   onExpertsChanged = () => {},
   appearanceTheme = 'system',
-  transparentFrostedEffectEnabled = false,
+  transparentFrostedEffectEnabled = true,
   applicationSettingsPending = false,
   applicationSettingsLocked = false,
   applicationSettingsError,

src/shared/application-settings-contracts.ts

@@ -59,7 +59,7 @@ const applicationPreferencesSchema = z
   .object({
     checkUpdatesOnStartup: z.boolean(),
     desktopNotificationsEnabled: z.boolean().default(true),
-    transparentFrostedEffectEnabled: z.boolean().default(false),
+    transparentFrostedEffectEnabled: z.boolean().default(true),
     updateSource: updateSourceSchema,
     modelDownloadSource: modelDownloadSourceSchema,
     localToolEnvironment: localToolEnvironmentSettingsSchema,