I have a website ready and waiting for the full power of Cloudflare Vibe. I tried following the docs on build.cloudflare.dev but could not get past the initial wiring. What I need now is a clean, production-ready implementation that: • Installs and configures the Vibe SDK on my site, in Arabic from day one (right-to-left layout, strings, and date formats included). • Activates and tests the built-in customer subscription flow so users can sign up, manage their plan, and renew without friction. • Tweaks any out-of-the-box components or styling so they feel native to my existing design. • Works flawlessly on all modern desktop browsers plus Safari and Chrome on iOS and Android. Please handle the full setup—keys, environment variables, callbacks, and any webhooks—then show me where and how to update copy or settings later. Final hand-off is a repository or zipped package, a brief walkthrough, and a quick checklist proving the subscription flow runs end-to-end in Arabic.