Implementert admin-funksjoner: Dashboard, Ansattliste, Avvikshåndtering og Profil-oppdatering

lib/providers/admin_provider.dart

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+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import '../models/user_model.dart';
+import '../models/deviation.dart';
+import 'auth_provider.dart';
+import 'time_provider.dart';
+
+// Provider for organisasjonens brukere
+final organizationUsersProvider = FutureProvider<List<UserModel>>((ref) async {
+  final user = ref.watch(currentUserProvider);
+  final userData = await ref.watch(userDataProvider.future);
+  
+  if (user == null || userData == null) {
+    return [];
+  }
+
+  // Sjekk om bruker er admin
+  if (userData.role != UserRole.admin && userData.role != UserRole.systemAdmin) {
+    return [];
+  }
+
+  final authService = ref.read(authServiceProvider);
+  return authService.getUsersInOrganization(userData.organizationId);
+});
+
+// Provider for organisasjonens avvik
+final organizationDeviationsProvider = FutureProvider.family<List<Deviation>, bool?>((ref, onlyUnacknowledged) async {
+  final user = ref.watch(currentUserProvider);
+  final userData = await ref.watch(userDataProvider.future);
+  
+  if (user == null || userData == null) {
+    return [];
+  }
+
+  // Sjekk om bruker er admin
+  if (userData.role != UserRole.admin && userData.role != UserRole.systemAdmin) {
+    return [];
+  }
+
+  final timeService = ref.read(timeServiceProvider);
+  return timeService.getDeviations(
+    organizationId: userData.organizationId,
+    onlyUnacknowledged: onlyUnacknowledged,
+  );
+});