SamurAIGPT/seedance-2-generator ? reverse-engineered prompt

Build me a polished AI video web app where people can sign in with Google, buy credits, and generate videos from text prompts or from uploaded reference images. I want it to feel like a real SaaS product, with a clean modern interface, a generation studio, a page for pricing and billing, and a personal library where users can see all their past creations and download them.

It should support Seedance 2.0 and Seedance 2 Mini, let users pick things like aspect ratio and quality, and handle the whole workflow from creating a job to showing the result when it’s ready. Please include the authentication, Stripe payments, credit tracking, and database saving so it works end to end out of the box.

Make it mobile friendly, smooth, and production ready. If you need current setup details for any APIs, look them up online and wire it up cleanly.