A hosted control-plane shell for the later Google sync product. This PR adds the public sections now, while keeping desktop packaging, Google sign-in, connector management, and sync execution for follow-up slices.
www.markdownload.ai and dev-www.markdownload.ai.Google sign-in, connector setup, and sync actions are intentionally hidden until the later memory PR lands.
The public copy still points at the deterministic Markdown collection shape that the later sync flows will share.