feat: add auto-update functionality with settings UI

- Implement electron-updater integration with IPC handlers for update operations
- Add Pinia store for managing update state and user preferences
- Create settings UI with version display, update controls, and auto-update toggles
- Update IPC constants and preload API for update-related communication
- Refactor preload invoke methods to use async IPC consistently
- Add rounded corners to settings page layout for better visual consistency

src/lib/constants.ts

@@ -58,6 +58,13 @@ export enum IPC_EVENTS {
 
   // 打开渠道
   OPEN_CHANNEL = 'open-channel',
+
+  // 更新
+  UPDATE_CHECK = 'update:check',
+  UPDATE_DOWNLOAD = 'update:download',
+  UPDATE_INSTALL = 'update:install',
+  UPDATE_VERSION = 'update:version',
+  UPDATE_STATUS_CHANGED = 'update:status-changed',
 }
 
 export const MAIN_WIN_SIZE  = {
@@ -82,6 +89,8 @@ export enum CONFIG_KEYS {
   MINIMIZE_TO_TRAY = 'minimizeToTray',
   PROVIDER = 'provider',
   DEFAULT_MODEL = 'defaultModel',
+  AUTO_CHECK_UPDATE = 'autoCheckUpdate',
+  AUTO_DOWNLOAD_UPDATE = 'autoDownloadUpdate',
 }
 
 export enum MENU_IDS {