Change PIN to 1451

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/captain-mobile-v2/flutter/lib/providers/auth_provider.dart

@@ -0,0 +1,52 @@
+import 'package:flutter/foundation.dart';
+import '../services/auth_service.dart';
+
+class AuthProvider with ChangeNotifier {
+  final AuthService _authService = AuthService();
+
+  bool _isLoading = false;
+  String? _error;
+
+  bool get isLoading => _isLoading;
+  bool get isAuthenticated => _authService.isAuthenticated;
+  String? get token => _authService.token;
+  String? get username => _authService.username;
+  String? get error => _error;
+
+  Future<void> init() async {
+    _isLoading = true;
+    notifyListeners();
+
+    await _authService.loadStoredAuth();
+
+    _isLoading = false;
+    notifyListeners();
+  }
+
+  Future<bool> login(String username, String password) async {
+    _isLoading = true;
+    _error = null;
+    notifyListeners();
+
+    final success = await _authService.login(username, password);
+
+    if (!success) {
+      _error = _authService.lastError ?? 'Login failed';
+    }
+
+    _isLoading = false;
+    notifyListeners();
+
+    return success;
+  }
+
+  Future<void> logout() async {
+    await _authService.logout();
+    notifyListeners();
+  }
+
+  void clearError() {
+    _error = null;
+    notifyListeners();
+  }
+}