ci: restore electron install marker after rebuild

package.json

@@ -89,7 +89,7 @@
     "standalone:build": "node --max-old-space-size=8192 ./node_modules/electron-vite/bin/electron-vite.js build && node --max-old-space-size=8192 ./node_modules/vite/bin/vite.js build --config docker/vite.standalone.config.ts",
     "standalone:start": "node dist-standalone/index.cjs",
     "prepare": "husky",
-    "postinstall": "electron-rebuild -f -o node-pty,ssh2,cpu-features || echo 'native Electron rebuild failed (terminal/ssh features may be degraded)'"
+    "postinstall": "electron-rebuild -f -o node-pty,ssh2,cpu-features || echo 'native Electron rebuild failed (terminal/ssh features may be degraded)'; node ./scripts/ensure-electron-install.cjs"
   },
   "lint-staged": {
     "src/**/*.{ts,tsx,js,jsx}": [

scripts/ensure-electron-install.cjs

@@ -0,0 +1,62 @@
+const childProcess = require('child_process');
+const fs = require('fs');
+const os = require('os');
+const path = require('path');
+
+function getPlatformPath() {
+  const platform = process.env.npm_config_platform || os.platform();
+
+  switch (platform) {
+    case 'mas':
+    case 'darwin':
+      return 'Electron.app/Contents/MacOS/Electron';
+    case 'freebsd':
+    case 'openbsd':
+    case 'linux':
+      return 'electron';
+    case 'win32':
+      return 'electron.exe';
+    default:
+      throw new Error(`Electron builds are not available on platform: ${platform}`);
+  }
+}
+
+function ensurePathFile(electronDir, platformPath) {
+  const pathFile = path.join(electronDir, 'path.txt');
+  const distPath = process.env.ELECTRON_OVERRIDE_DIST_PATH || path.join(electronDir, 'dist');
+  const executablePath = path.join(distPath, platformPath);
+
+  if (!fs.existsSync(executablePath)) {
+    return false;
+  }
+
+  const currentPath = fs.existsSync(pathFile) ? fs.readFileSync(pathFile, 'utf8') : '';
+  if (currentPath !== platformPath) {
+    fs.writeFileSync(pathFile, platformPath);
+  }
+  return true;
+}
+
+function runElectronInstaller(installPath) {
+  const result = childProcess.spawnSync(process.execPath, [installPath], {
+    stdio: 'inherit',
+    env: process.env,
+  });
+
+  if (result.status !== 0) {
+    throw new Error(`Electron installer failed with exit code ${result.status ?? 'unknown'}`);
+  }
+}
+
+const electronPackagePath = require.resolve('electron/package.json');
+const electronDir = path.dirname(electronPackagePath);
+const installPath = path.join(electronDir, 'install.js');
+const platformPath = getPlatformPath();
+
+if (!ensurePathFile(electronDir, platformPath)) {
+  runElectronInstaller(installPath);
+}
+
+if (!ensurePathFile(electronDir, platformPath)) {
+  throw new Error(`Electron binary is missing after install: ${platformPath}`);
+}