NihalMishra3009/XENECOSYS ? reverse-engineered prompt

Build me a Flutter based communication system for emergency situations that works even when there is no internet.

I want a mobile app for people to register, get a unique ID, send and receive encrypted messages, and see emergency, medical, government, and normal alerts in priority order. It should store data locally, work offline first, and sync automatically when the phone gets near a local hub.

I also want a desktop admin hub app that can manage users, message queues, emergency broadcasts, and relay status, with a dashboard that makes it easy to see what is waiting to be sent and what has been delivered. Include a simple DTN style visualization for how messages move between hubs, and make the whole thing privacy focused so unencrypted data is never stored. If you need to check current Flutter or package docs while building, go ahead and look them up online.