Client settings (#7381)

Co-authored-by: Douwe Osinga <douwe@squareup.com>

ui/desktop/src/utils/settings.ts

@@ -21,16 +21,32 @@ export type DefaultKeyboardShortcuts = {
   [K in keyof KeyboardShortcuts]: string;
 };
 
+export interface SessionSharingConfig {
+  enabled: boolean;
+  baseUrl: string;
+}
+
 export interface Settings {
+  // Desktop app settings
   showMenuBarIcon: boolean;
   showDockIcon: boolean;
   enableWakelock: boolean;
   spellcheckEnabled: boolean;
-  externalGoosed?: ExternalGoosedConfig;
+  externalGoosed: ExternalGoosedConfig;
   globalShortcut?: string | null;
-  keyboardShortcuts?: KeyboardShortcuts;
+  keyboardShortcuts: KeyboardShortcuts;
+
+  // UI preferences (migrated from localStorage)
+  theme: 'dark' | 'light';
+  useSystemTheme: boolean;
+  responseStyle: string;
+  showPricing: boolean;
+  sessionSharing: SessionSharingConfig;
+  seenAnnouncementIds: string[];
 }
 
+export type SettingKey = keyof Settings;
+
 export const defaultKeyboardShortcuts: DefaultKeyboardShortcuts = {
   focusWindow: 'CommandOrControl+Alt+G',
   quickLauncher: 'CommandOrControl+Alt+Shift+G',
@@ -44,6 +60,31 @@ export const defaultKeyboardShortcuts: DefaultKeyboardShortcuts = {
   alwaysOnTop: 'CommandOrControl+Shift+T',
 };
 
+export const defaultSettings: Settings = {
+  // Desktop app settings
+  showMenuBarIcon: true,
+  showDockIcon: true,
+  enableWakelock: false,
+  spellcheckEnabled: true,
+  keyboardShortcuts: defaultKeyboardShortcuts,
+  externalGoosed: {
+    enabled: false,
+    url: '',
+    secret: '',
+  },
+
+  // UI preferences
+  theme: 'light',
+  useSystemTheme: true,
+  responseStyle: 'concise',
+  showPricing: true,
+  sessionSharing: {
+    enabled: false,
+    baseUrl: '',
+  },
+  seenAnnouncementIds: [],
+};
+
 export function getKeyboardShortcuts(settings: Settings): KeyboardShortcuts {
   if (!settings.keyboardShortcuts && settings.globalShortcut !== undefined) {
     const focusShortcut = settings.globalShortcut;