SShogun/Satark.sec ? reverse-engineered prompt

Build me a local demo for a fintech fraud detection platform called Satark.

I want a web app where an analyst can load a large set of bank transactions, see suspicious clusters and multi step fraud rings get flagged, and explore everything in a dramatic interactive 3D network view. The main idea is that different institutions should be able to compare suspicious activity without exposing raw customer data, so use masked or cryptographic identifiers instead of plain personal data. There should also be an admin style dashboard, a FastAPI backend for ingestion and analysis, and background workers so heavier graph checks can run without freezing the app.

Please include seeded demo data with thousands of nodes and some obvious fraud patterns like smurfing, cycles, and sudden bursts so the visualizer looks alive right away. I also want a simple cross bank verification flow for suspicious entities, even if it is just a simulated phase one version.

Make it runnable locally with clear startup steps for backend, worker, and frontend. Look up current docs online if you need to.