NMolargik/Mygra — reverse-engineered prompt

Build me a polished iPhone app called Mygra for tracking migraines and helping people figure out their triggers over time. I want users to log a migraine with severity and notes, and have the app automatically capture a snapshot of sleep, hydration, caffeine, energy, and local weather at the time it starts, plus show how long the migraine has been going with a Live Activity.

The main screen should feel useful right away, with cards for current weather, today’s health stats, quick add buttons for water, caffeine, food, and sleep, and simple insights that point out patterns like poor sleep, dehydration, or weather changes. Please include private iCloud sync across devices, a home screen widget that shows days since the last migraine, and an Apple Watch companion that stays in sync with the phone. If the device supports Apple Intelligence, add a full screen chat assistant that gives personalized guidance based on the user’s history. Keep privacy first and use current Apple docs if you need to.