Project Setup

• [x] Create Flutter project (flutter create kirabill)
• [ ] Set up flavors/environments (dev, staging, prod)
• [ ] Configure app name, package ID, icons & splash screen (flutter_launcher_icons, flutter_native_splash)
• [ ] Integrate linting & formatter (flutter_lints, very_good_analysis)
• [ ] Set up bottom nav bar

UI & Theming

• [ ] Define theme system (colors, fonts, light/dark mode)
• [ ] Build global components (Button, TextField, AppBar, etc.)
• [ ] Create navigation structure (go_router or auto_route)
• [ ] Implement responsive layouts (LayoutBuilder, MediaQuery)
• [ ] Add animations (basic Flutter Animated* widgets / rive / lottie)

Data Layer

• [ ] Set up API client (dio or http)
• [ ] Create data models (with json_serializable or freezed)
• [ ] Implement repositories for data handling
• [ ] Handle local storage (shared_preferences, hive, or sqflite)
• [ ] Add secure storage for tokens (flutter_secure_storage)