refactor: stabilize app bootstrap and polling

lib/main.dart

@@ -3,7 +3,7 @@ import 'dart:ui';
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:workmanager/workmanager.dart';
-import 'providers/providers.dart';
+import 'app/app_bootstrap.dart';
 import 'screens/homes_screen.dart';
 import 'screens/remote_screen.dart';
 import 'services/geofence_worker.dart';
@@ -78,53 +78,83 @@ class _MainGateState extends ConsumerState<MainGate> {
   @override
   void initState() {
     super.initState();
-    _bootstrap();
+    Future.microtask(_bootstrap);
   }
 
   Future<void> _bootstrap() async {
-    try {
-      // Загружаем список домов
-      await ref.read(homesProvider.notifier).load();
-      await ref.read(currentHomeProvider.notifier).load();
+    await ref.read(appBootstrapProvider.notifier).bootstrap();
+    if (!mounted) return;
 
-      if (!mounted) return;
-
-      final home = ref.read(currentHomeProvider);
-
-      if (home != null) {
-        // Есть дом -- идём на пульт управления
-        await ref.read(groupsProvider.notifier).initAndRefresh();
-        // Загружаем info об авторизации (admin / не admin)
-        await ref.read(authInfoProvider.notifier).load();
-
-        // Запускаем / обновляем геофенс-таск если нужно
-        await syncGeofenceTask(ref.read(homesProvider));
-
-        if (mounted) {
-          Navigator.of(context).pushReplacement(
-            MaterialPageRoute(builder: (_) => const RemoteScreen()),
-          );
-        }
-      } else {
-        // Нет домов -- на экран управления домами
-        if (mounted) {
-          Navigator.of(context).pushReplacement(
-            MaterialPageRoute(builder: (_) => const HomesScreen()),
-          );
-        }
-      }
-    } catch (e) {
-      debugPrint("Ошибка бутстрапа: $e");
-      if (mounted) {
+    final bootstrap = ref.read(appBootstrapProvider);
+    switch (bootstrap.status) {
+      case AppBootstrapStatus.ready:
+        Navigator.of(context).pushReplacement(
+          MaterialPageRoute(builder: (_) => const RemoteScreen()),
+        );
+        break;
+      case AppBootstrapStatus.noHomes:
         Navigator.of(context).pushReplacement(
           MaterialPageRoute(builder: (_) => const HomesScreen()),
         );
-      }
+        break;
+      case AppBootstrapStatus.bootstrapping:
+      case AppBootstrapStatus.authFailed:
+      case AppBootstrapStatus.networkFailed:
+      case AppBootstrapStatus.invalidConfig:
+      case AppBootstrapStatus.failed:
+        break;
     }
   }
 
   @override
   Widget build(BuildContext context) {
+    final bootstrap = ref.watch(appBootstrapProvider);
+    final message = bootstrap.message;
+
+    if (!bootstrap.isBootstrapping && message != null) {
+      return Scaffold(
+        body: Center(
+          child: Padding(
+            padding: const EdgeInsets.all(24),
+            child: Column(
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: [
+                const Icon(
+                  Icons.warning_amber_rounded,
+                  color: Colors.deepOrange,
+                  size: 56,
+                ),
+                const SizedBox(height: 16),
+                const Text(
+                  'Не удалось запустить приложение',
+                  textAlign: TextAlign.center,
+                  style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
+                ),
+                const SizedBox(height: 8),
+                Text(
+                  message,
+                  textAlign: TextAlign.center,
+                  style: const TextStyle(color: Colors.white54),
+                ),
+                const SizedBox(height: 20),
+                FilledButton.icon(
+                  onPressed: _bootstrap,
+                  icon: const Icon(Icons.refresh),
+                  label: const Text('Повторить'),
+                ),
+                TextButton(
+                  onPressed: () => Navigator.of(context).pushReplacement(
+                    MaterialPageRoute(builder: (_) => const HomesScreen()),
+                  ),
+                  child: const Text('Открыть список домов'),
+                ),
+              ],
+            ),
+          ),
+        ),
+      );
+    }
+
     return const Scaffold(
       body: Center(
         child: Column(