Connect & Finish Existing Dealer Management App (Next.js/Node) – FB Scraper, Dashboard, Messenger -- 2

We have an existing car dealership management/intelligence app with two partially-built versions — a legacy working build and a newer UI — that need to be connected into one structured, functioning app... (Budget: $10 - $30 USD, Jobs: AI Development, Java, JavaScript, Mobile App Development, Next.js, Node.js, PHP, Web Scraping)