ci: publish bundled CLI and update Windows job

scripts/prepare-bundle-package.js

@@ -0,0 +1,55 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import fs from 'node:fs';
+import path from 'node:path';
+
+const rootDir = process.cwd();
+
+function updatePackageJson(packagePath, updateFn) {
+  const packageJsonPath = path.resolve(rootDir, packagePath);
+  const packageJson = JSON.parse(fs.readFileSync(packageJsonPath, 'utf-8'));
+  updateFn(packageJson);
+  fs.writeFileSync(packageJsonPath, JSON.stringify(packageJson, null, 2));
+}
+
+// Copy bundle directory into packages/cli
+const sourceBundleDir = path.resolve(rootDir, 'bundle');
+const destBundleDir = path.resolve(rootDir, 'packages/cli/bundle');
+
+if (fs.existsSync(sourceBundleDir)) {
+  fs.rmSync(destBundleDir, { recursive: true, force: true });
+  fs.cpSync(sourceBundleDir, destBundleDir, { recursive: true });
+  console.log('Copied bundle/ directory to packages/cli/');
+} else {
+  console.error(
+    'Error: bundle/ directory not found at project root. Please run `npm run bundle` first.',
+  );
+  process.exit(1);
+}
+
+// Update @google/gemini-cli to be a bundled package
+updatePackageJson('packages/cli/package.json', (pkg) => {
+  pkg.name = '@google-gemini/gemini-cli';
+  pkg.files = ['bundle/'];
+  pkg.bin = {
+    gemini: 'bundle/gemini.js',
+  };
+
+  // Remove fields that are not relevant to the bundled package.
+  delete pkg.dependencies;
+  delete pkg.devDependencies;
+  delete pkg.scripts;
+  delete pkg.main;
+  delete pkg.config; // Deletes the sandboxImageUri
+});
+
+// Update @google/gemini-cli-core name for GitHub Packages
+updatePackageJson('packages/core/package.json', (pkg) => {
+  pkg.name = '@google-gemini/gemini-cli-core';
+});
+
+console.log('Successfully prepared packages for GitHub release.');