Sweet Shop Ecommerce Website Development and create seller account of all app

I need a full-featured ecommerce website that lets me sell both packaged sweets and made-to-order treats from one seamless storefront. Customers must be able to browse, customise, and purchase products on any device, while I manage everything easily from the back end.

Key features I have to see right out of the gate:
• Shopping cart with a secure, friction-free checkout (multiple payment gateways and coupon support)
• User reviews and ratings displayed on each product page
• A loyalty or rewards programme customers can enrol in, track points, and redeem automatically at checkout

Beyond those essentials, the build should include a clear product catalogue for standard items, a simple configurator for personalised sweets (flavour, quantity, packaging), real-time stock updates, and order status notifications. Clean responsive design, fast load times, and on-page SEO fundamentals are a must so the store is ready to scale.

Please outline the platform or tech stack you recommend (Shopify, WooCommerce, custom Laravel/React, etc.), estimated timeline, and what hand-over looks like (documentation, walkthrough, post-launch support). I’m ready to move quickly once we agree on scope and milestones.