Agrego updater app

soma_pro_updater/lib/main.dart

@@ -0,0 +1,103 @@
+import 'dart:io';
+
+import 'package:flutter/material.dart';
+import 'package:window_manager/window_manager.dart';
+
+import 'updater_service.dart';
+
+void main() async {
+  WidgetsFlutterBinding.ensureInitialized();
+  await windowManager.ensureInitialized();
+
+  const windowOptions = WindowOptions(
+    size: Size(420, 320),
+    center: true,
+    backgroundColor: Color(0xFF121212),
+    skipTaskbar: false,
+    titleBarStyle: TitleBarStyle.hidden,
+    title: 'SOMA PRO',
+  );
+
+  windowManager.waitUntilReadyToShow(windowOptions, () async {
+    await windowManager.show();
+    await windowManager.focus();
+  });
+
+  runApp(const UpdaterApp());
+}
+
+class UpdaterApp extends StatelessWidget {
+  const UpdaterApp({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      debugShowCheckedModeBanner: false,
+      theme: ThemeData.dark(useMaterial3: true).copyWith(
+        scaffoldBackgroundColor: const Color(0xFF121212),
+      ),
+      home: const SplashScreen(),
+    );
+  }
+}
+
+class SplashScreen extends StatefulWidget {
+  const SplashScreen({super.key});
+
+  @override
+  State<SplashScreen> createState() => _SplashScreenState();
+}
+
+class _SplashScreenState extends State<SplashScreen> {
+  String _status = 'Chequeando actualizaciones...';
+
+  @override
+  void initState() {
+    super.initState();
+    _run();
+  }
+
+  Future<void> _run() async {
+    try {
+      await UpdaterService.checkAndUpdate(
+        onStatus: (status) {
+          if (mounted) setState(() => _status = status);
+        },
+      );
+    } catch (_) {
+      if (mounted) {
+        setState(() => _status = 'Sin conexión, abriendo SOMA PRO...');
+      }
+    }
+    await UpdaterService.launchApp();
+    // Si este proceso muere apenas después de lanzar la app, macOS a veces no
+    // llega a terminar de transferirle el foco: la ventana queda "ocluida"
+    // para el engine de Flutter y nunca dispara el primer frame (pantalla
+    // negra permanente, sin ningún error). Dar un respiro antes de salir le
+    // da tiempo al sistema a completar la activación.
+    await Future.delayed(const Duration(milliseconds: 600));
+    exit(0);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      body: Center(
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            Image.asset('assets/logo.png', width: 220),
+            const SizedBox(height: 32),
+            const SizedBox(
+              width: 28,
+              height: 28,
+              child: CircularProgressIndicator(strokeWidth: 3),
+            ),
+            const SizedBox(height: 16),
+            Text(_status, style: const TextStyle(color: Colors.white70)),
+          ],
+        ),
+      ),
+    );
+  }
+}