andinaufal120/niscala-app ? reverse-engineered prompt

Build me a Flutter Android app for boarding house owners and managers called Niscala.

It should help them manage their kos in one place, including properties, rooms, tenants, rent payments, and maintenance complaints. The app mostly needs to display and work with data from an API, since the business logic lives on the backend.

I want the experience to feel simple and practical for everyday use in Indonesia, with clear screens for tracking who lives where, who has paid rent, who is late, and what maintenance issues need attention. For complaints, include AI based help that groups each complaint into a category and urgency level, then shows a short plain language summary of late payment risk so the owner can quickly understand what needs attention.

Please make it work well on Android, follow good Flutter practices, and include basic tests and sensible accessibility. If you need current Flutter or package guidance, feel free to look up the latest docs online first.