chore(icon): use platform-specific tray icons (#21)

electron/main/index.ts

@@ -2,7 +2,7 @@
  * Electron Main Process Entry
  * Manages window creation, system tray, and IPC handlers
  */
-import { app, BrowserWindow, session, shell } from 'electron';
+import { app, BrowserWindow, nativeImage, session, shell } from 'electron';
 import { join } from 'path';
 import { GatewayManager } from '../gateway/manager';
 import { registerIpcHandlers } from './ipc-handlers';
@@ -22,6 +22,33 @@ let mainWindow: BrowserWindow | null = null;
 const gatewayManager = new GatewayManager();
 const clawHubService = new ClawHubService();
 
+/**
+ * Resolve the icons directory path (works in both dev and packaged mode)
+ */
+function getIconsDir(): string {
+  if (app.isPackaged) {
+    // Packaged: icons are in extraResources → process.resourcesPath/resources/icons
+    return join(process.resourcesPath, 'resources', 'icons');
+  }
+  // Development: relative to dist-electron/main/
+  return join(__dirname, '../../resources/icons');
+}
+
+/**
+ * Get the app icon for the current platform
+ */
+function getAppIcon(): Electron.NativeImage | undefined {
+  if (process.platform === 'darwin') return undefined; // macOS uses the app bundle icon
+
+  const iconsDir = getIconsDir();
+  const iconPath =
+    process.platform === 'win32'
+      ? join(iconsDir, 'icon.ico')
+      : join(iconsDir, 'icon.png');
+  const icon = nativeImage.createFromPath(iconPath);
+  return icon.isEmpty() ? undefined : icon;
+}
+
 /**
  * Create the main application window
  */
@@ -33,6 +60,7 @@ function createWindow(): BrowserWindow {
     height: 800,
     minWidth: 960,
     minHeight: 600,
+    icon: getAppIcon(),
     webPreferences: {
       preload: join(__dirname, '../preload/index.js'),
       nodeIntegration: false,