OnethumbOneLove/Real-Estate-Leads-Generator ? reverse-engineered prompt

Build me a web app for real estate agents that helps them get more leads with AI assisted ad campaigns. I want users to be able to sign up, log in, and manage their leads in one place, then create ad copy with AI and launch campaigns for Facebook and Google Ads.

Please make it work with a MongoDB backed database, protect the private parts with login, and keep passwords and API keys handled safely. I also want a simple dashboard where agents can see their leads, add new ones, update them, and track activity in real time.

Include the backend routes for authentication, lead management, AI content generation, and campaign creation, and wire it up so it can use OpenAI plus Facebook and Google ad accounts through environment variables. If you need to check current docs for any of those integrations, go ahead and look them up online.