Enhance AI MVP: Java & Node -- 2

Our AI-driven MVP is already live on a Java Spring Boot back end with a Node.js front end. It performs well, but a few stubborn bugs remain and, more importantly, the product now needs a robust analytics extension: weekly sales and revenue reports available from the admin dashboard... (Budget: ₹12500 - ₹37500 INR, Jobs: AI Development, Git, Java, JavaScript, Node.js, PHP, PostgreSQL, Spring Boot)