Mobile App Screen Brief

Help me design a mobile app screen. SCREEN PURPOSE: [[SCREEN]] WHAT THE USER NEEDS TO DO HERE: [[USER_GOAL]] PLATFORM: [[PLATFORM]] (iOS, Android, both) KEY DATA/ACTIONS: [[CONTENT]] Deliver: 1. A layout structure (top to bottom: nav, content priority, actions) 2. The primary action and how to make it obvious 3. Platform conventions to respect (and where to follow them vs deviate) 4. Thumb-reach and one-handed-use considerations 5. Empty, loading, and error states for this screen 6. Accessibility notes Prioritize the one thing the user came here to do.Copy