Abrar74774/FossFLOW — reverse-engineered prompt

Build me a polished open source browser app called FossFLOW for making beautiful isometric infrastructure diagrams. I want a big canvas where people can add servers, services, network parts, and other components from a side library, drag them around, and connect them with clean smart connectors. Include an easy connector tool with click to connect, and a setting for drag to connect if that makes sense.

It should work offline like a Progressive Web App, auto save every few seconds to the browser session, and let users quick save, export a diagram as JSON, and import it again later. Make it pleasant to use, with a top menu, component library, right click add node option, and a simple settings area for connector behavior. Also make it possible to run locally for development and package it for Docker with optional server storage and optional Basic Auth.