chore: restructure project and add i18n support

- Reorganize project structure with new electron and shared directories
- Add comprehensive i18n support with Chinese, English, and Japanese locales
- Update build configurations and TypeScript paths for new structure
- Add various UI components including chat interface and task management
- Include Windows release binaries and localization files
- Update dependencies and fix import paths throughout the codebase

electron/service/theme-service/index.ts

@@ -0,0 +1,61 @@
+import { BrowserWindow, ipcMain, nativeTheme } from 'electron'
+import { configManager } from '@electron/service/config-service'
+import { logManager } from '@electron/service/logger'
+import { IPC_EVENTS, CONFIG_KEYS } from '@lib/constants'
+
+class ThemeService {
+  private static _instance: ThemeService;
+  private _isDark: boolean = nativeTheme.shouldUseDarkColors;
+
+  constructor() {
+    const themeMode = configManager.get(CONFIG_KEYS.THEME_MODE);
+    if (themeMode) {
+      nativeTheme.themeSource = themeMode;
+      this._isDark = nativeTheme.shouldUseDarkColors;
+    }
+    this._setupIpcEvent();
+    logManager.info('ThemeService initialized successfully.');
+  }
+
+  private _setupIpcEvent() {
+    ipcMain.handle(IPC_EVENTS.SET_THEME_MODE, (_e, mode: ThemeMode) => {
+      nativeTheme.themeSource = mode;
+      configManager.set(CONFIG_KEYS.THEME_MODE, mode);
+      return nativeTheme.shouldUseDarkColors;
+    });
+
+    ipcMain.handle(IPC_EVENTS.GET_THEME_MODE, () => {
+      return nativeTheme.themeSource;
+    });
+
+    ipcMain.handle(IPC_EVENTS.IS_DARK_THEME, () => {
+      return nativeTheme.shouldUseDarkColors;
+    });
+
+    nativeTheme.on('updated', () => {
+      this._isDark = nativeTheme.shouldUseDarkColors;
+      
+      BrowserWindow.getAllWindows().forEach(win =>
+        win.webContents.send(IPC_EVENTS.THEME_MODE_UPDATED, this._isDark)
+      );
+    });
+  }
+
+  public static getInstance() {
+    if (!this._instance) {
+      this._instance = new ThemeService();
+    }
+    return this._instance;
+  }
+
+  public get isDark() {
+    return this._isDark;
+  }
+
+  public get themeMode() {
+    return nativeTheme.themeSource;
+  }
+}
+
+export const themeManager = ThemeService.getInstance();
+export default themeManager;