Initialize or reset a Flutter project into a production-ready baseline aligned with this repository's real Flutter projects: manual Riverpod setup, GoRouter routing, Material 3 configuration, shared services, shared widgets, design tokens, and either modular `lib/modules/` scaffolding or a simpler root-level `domain/infrastructure/presentation` structure when the app does not need feature modules. Use when bootstrapping a new project, replacing the default counter app, or standardizing an app foundation before feature development.
