We are building a SaaS product called Wren AI that helps small businesses create high-performing Facebook ad creatives using AI. Users describe their business and campaign goals, and the platform generates ad images, headlines, and text automatically. We want to build an MVP with: ✔ user signup/login ✔ input form ✔ AI-generated creatives ✔ download option ✔ simple dashboard Tech Stack preference: ✔ Azure OpenAI / Stable Diffusion ✔ React or Next.js frontend ✔ Node.js / Python backend ✔ scalable + low-cost You must: ✔ have built AI SaaS before ✔ deliver clean documented code ✔ deploy to Azure ✔ help set up billing protection + alerts ✔ communicate clearly