Core Platform A **marketplace for app ratings, downloads, and reviews** where buyers request services and verified sellers fulfill them. Payment System (Stripe) - **Fixed pricing**: Standard (€1.10) and Premium (€2.20) services - **10% platform fee** automatically deducted - **Escrow system**: Payments held until buyer confirms or 24h auto-release - Secure checkout via Stripe with webhook handling Security & Authentication - Email/password authentication with **Turnstile CAPTCHA** - **Rate limiting**: Login (5 attempts/15min) + Signup (3 attempts/60min) - **Row-Level Security (RLS)** on all database tables - Role-based access control (buyer, seller, admin) - Seller **ID verification** with document upload - Secure RPC functions masking sensitive Stripe IDs User Features - **Buyers**: Create requests, accept offers, review proofs, confirm payments - **Sellers**: Browse requests, submit offers, upload proof (screenshots/links), receive payouts - **Real-time chat** between buyers and sellers - Dashboard with request/offer management Admin Panel - Verification queue for seller ID documents - Signed URL generation for secure document viewing Public Pages - Landing page with hero, pricing, how-it-works, FAQ - Multi-language support (i18n ready) Export technical documentation Add user guide