smicallef/spiderfoot ? reverse-engineered prompt

Build me an open-source intelligence (OSINT) tool for automating online reconnaissance. I want to be able to give it a target—like a domain name, an IP address, an email, or even just a person's name—and have it automatically map out its entire online footprint. The app should be able to check hundreds of public data sources to find things like subdomains, associated email addresses or phone numbers, social media accounts, and see if any of that information has appeared in known data breaches.

The main interface should be a clean web-based dashboard where I can kick off a scan and see visualizations of all the data it finds. It should also have a command-line interface for more advanced users or for scripting. Please build this using Python, and set it up to run in Docker to make deployment as simple as possible.