Advantage Calculator Screen

Flutter screen that presents the peer mentor's accumulated impact as animated metric cards. Calls the backend on mount, debounces re-calls when the user adjusts input sliders, and uses Riverpod AsyncNotifier for state management. Degrades gracefully offline by displaying the last cached result with a staleness indicator.

Feature: Advantage Calculator (Real-Time)

advantage-calculator-screen

• Render impact metrics (professional-hour equivalents, cost savings, social-value score) with AnimatedSwitcher and Tween interpolation
• Expose adjustable input sliders for activity parameters and debounce API re-calls on slider change
• Show staleness indicator widget when displaying a cached offline result
• Integrate with Riverpod AsyncNotifier to manage loading, error, and data states