Stripe & Ziina Payment Integration

I’m expanding my lovable.dev-built site with a fully-fledged payment layer and need an engineer who already speaks the language of Stripe and Ziina. The job is to wire both gateways into my existing stack—Supabase for auth and edge functions, Vercel for hosting, GitHub for version control, and a Tasjeel-hosted domain—without cutting corners on security or performance.

Here’s what success looks like to me:

• A unified checkout flow that supports one-time charges today and leaves the door open for subscriptions and refunds tomorrow.
• Webhook handling and edge-function logic deployed through Supabase, all version-controlled in my repo.
• PCI-compliant tokenisation, secure key storage, and clear error handling so I can sleep at night.
• Sandbox demos for both Stripe and Ziina, followed by a smooth switch to live mode.
• Clean, well-documented code and a brief walkthrough so I can maintain or extend it later.

If you’ve already shipped projects that mix AI-driven user experiences with robust payment rails, you’ll feel at home here. Please reference similar integrations you’ve completed and outline your approach; I’ll share repo access and environment keys once we confirm fit.

Only reach out if you’re truly at expert level with these specific tools—I value everyone’s time, including yours.