guptakundan1984k-star/Kalika-Store- — reverse-engineered prompt

Build me a working ecommerce site called Kalika Store using the existing project. I want a clean storefront where shoppers can browse products, open a product detail page, add items to a cart, change quantities, remove items, and place an order with their name, phone, address, and basic order notes.

Make it feel like a real small shop, with a nice home page, product cards, cart summary, checkout page, loading states, empty states, and simple error messages. It should work well on mobile and desktop. Use the existing TypeScript app setup and keep the Firebase and Gemini environment setup intact if the project already depends on it.

Please wire up product and order data in a practical way so the store can actually run, even if it starts with sample products. Make sure it can run locally with npm install and npm run dev, and keep it ready to deploy on Netlify or Vercel. Look up current docs online if needed.