Part 1: প্রজেক্ট তৈরি ও ফোল্ডার স্ট্রাকচার

flutter create erp_app

flutter run -d chrome

flutter devices

lib/
├── main.dart
├── screens/
│   ├── login_screen.dart
│   ├── dashboard_screen.dart
│   ├── sales_screen.dart
│   ├── purchase_screen.dart
│   ├── reports_screen.dart
│   └── settings_screen.dart
├── widgets/
│   └── card_button.dart
├── config/
│   └── app_routes.dart
└── utils/
    └── validators.dart

import 'package:flutter/material.dart';
import 'screens/login_screen.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'ERP App',
      debugShowCheckedModeBanner: false,
      theme: ThemeData(primarySwatch: Colors.blue),
      home: const LoginScreen(), // প্রথমে Login দেখাবে
    );
  }
}