AuvroIslam/Nongor ? reverse-engineered prompt

Build me an Android app called Nongor for flood emergencies in Bangladesh.

It should work fully offline with no account, no server, and no internet needed. The main things I want are a big SOS button that can warn nearby phones and still fall back to a simple SMS if nobody is in range, an emergency translation screen for rescue conversations in Bangla and the six local languages mentioned in the project, and quick first aid and triage help that people can use in a crisis. It should also show flood safe shelter routing so users can find the best place to go while avoiding flood affected areas.

Make it simple enough for low cost phones and easy to use in stress. Use a clean Bangla friendly interface, support offline first behavior, and keep everything available as soon as the app opens. If you need current Android or Gemini docs, look them up online, but keep the app practical and lightweight.