Initial commit: Product OS platform

- Control Plane API with Gemini integration
- Executors: Deploy, Analytics, Marketing
- MCP Adapter for Continue integration
- VSCode/VSCodium extension
- Tool registry and run tracking
- In-memory storage for local dev
- Terraform infrastructure setup

platform/backend/control-plane/src/storage/gcs.ts

@@ -0,0 +1,11 @@
+import { Storage } from "@google-cloud/storage";
+import { config } from "../config.js";
+
+const storage = new Storage({ projectId: config.projectId });
+
+export async function writeArtifactText(prefix: string, filename: string, content: string) {
+  const bucket = storage.bucket(config.artifactsBucket);
+  const file = bucket.file(`${prefix}/${filename}`);
+  await file.save(content, { contentType: "text/plain" });
+  return { bucket: config.artifactsBucket, path: `${prefix}/${filename}` };
+}