SV-stark/AstroNaksh ? reverse-engineered prompt

Build me a Flutter app called AstroNaksh that helps people create and explore Vedic astrology birth charts on desktop and web.

I want a clean, modern interface where someone can enter their name, birth date, birth time, and place, then generate a detailed kundali with accurate planetary positions, nakshatras, houses, and common yoga or dosha insights. Please include KP style analysis too, with sub lord details and a simple horary or prashna flow for a few life topics like job, marriage, health, finance, and travel.

It should work fully offline as much as possible, with a searchable city database, local saving of charts, and export options for image or PDF. Make the app feel fast and polished, with dark and light mode, easy navigation, and a dashboard style home screen. If you need to look up current docs online for Flutter or any astronomy related packages, go ahead.