Basic code assist support (#910)

packages/core/src/code_assist/codeAssist.ts

@@ -0,0 +1,19 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { ContentGenerator } from '../core/contentGenerator.js';
+import { loginWithOauth } from './oauth2.js';
+import { setupUser } from './setup.js';
+import { CcpaServer } from './ccpaServer.js';
+
+export async function createCodeAssistContentGenerator(): Promise<ContentGenerator> {
+  const oauth2Client = await loginWithOauth();
+  const projectId = await setupUser(
+    oauth2Client,
+    process.env.GOOGLE_CLOUD_PROJECT,
+  );
+  return new CcpaServer(oauth2Client, projectId);
+}