Add Docker build workflow and mobile application

bus_terminal/lib/main.dart

@@ -0,0 +1,27 @@
+import 'package:flutter/material.dart';
+import 'screens/login_screen.dart';
+import 'screens/daily_schedule_screen.dart';
+import 'theme/app_theme.dart';
+
+void main() {
+  runApp(const MainApp());
+}
+
+class MainApp extends StatelessWidget {
+  const MainApp({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      title: 'Bus Terminal',
+      theme: AppTheme.lightTheme(),
+      darkTheme: AppTheme.darkTheme(),
+      themeMode: ThemeMode.system,
+      routes: {
+        '/login': (context) => const LoginScreen(),
+        '/schedule': (context) => const DailyScheduleScreen(),
+      },
+      home: const LoginScreen(),
+    );
+  }
+}