feat: add OpenCode update and in-app Browser features

packages/electron/main.mjs

@@ -1,4 +1,4 @@
-import { app, BrowserWindow, dialog, ipcMain, Menu, nativeTheme, Notification, powerMonitor, session, shell } from 'electron';
+import { app, BrowserWindow, dialog, ipcMain, Menu, nativeTheme, Notification, powerMonitor, session, shell, webContents } from 'electron';
 import contextMenu from 'electron-context-menu';
 import log from 'electron-log/main.js';
 import dgram from 'node:dgram';
@@ -1181,6 +1181,7 @@ const createBrowserWindow = ({ label, restoreGeometry, url }) => {
       backgroundThrottling: true,
       contextIsolation: true,
       nodeIntegration: false,
+      webviewTag: true,
       // sandbox must stay off: the preload uses contextBridge + ipcRenderer
       // from Electron's Node layer. contextIsolation + nodeIntegration:false
       // keep the renderer world walled off from Node. Do NOT flip to true —
@@ -1431,6 +1432,8 @@ const createMiniChatWindow = async ({ mode, sessionId = '', directory = '', proj
       backgroundThrottling: true,
       contextIsolation: true,
       nodeIntegration: false,
+      webviewTag: true,
+      // sandbox must stay off
       sandbox: false,
     },
   });
@@ -1859,6 +1862,21 @@ const handleInvoke = async (browserWindow, command, args = {}) => {
     case 'desktop_get_app_version':
       return APP_VERSION;
 
+    case 'desktop_browser_capture_page': {
+      const wcId = Number.isFinite(args.webContentsId) ? Math.trunc(args.webContentsId) : null;
+      if (wcId === null || wcId < 0) throw new Error('webContentsId is required');
+      const wc = webContents.fromId(wcId);
+      if (!wc || wc.isDestroyed()) throw new Error('WebContents not found');
+      const image = await wc.capturePage();
+      const buffer = image.toJPEG(82);
+      return {
+        mime: 'image/jpeg',
+        base64: buffer.toString('base64'),
+        width: image.getSize().width,
+        height: image.getSize().height,
+      };
+    }
+
     case 'desktop_capture_page_rect': {
       if (!browserWindow || browserWindow.isDestroyed()) {
         throw new Error('Window is not available');