ArbazKhan1645/next-smart-pos ? reverse-engineered prompt

Build me a polished enterprise POS web app for restaurants and retail shops that feels like a real SaaS product.

I want a modern admin style dashboard with revenue cards, live activity, sales charts, and quick navigation into locations, products, orders, register, and reports. Include multi location management, staff and role control, product variants and modifiers, meal deals, cart and checkout flow, printer and terminal setup, and a reporting area with analytics and summaries. Make it responsive so it works nicely on desktop, tablet, and POS screens, and keep the UI clean, fast, and high fidelity like Stripe or Toast. Use the existing React based frontend structure and make the screens feel connected as one product. If you need to, look up current docs online for anything unclear, but keep the focus on building the full frontend experience first.