test: expand client-side coverage and fix lifecycle issues

lib/screens/api_keys_screen.dart

@@ -22,7 +22,7 @@ class _ApiKeysScreenState extends ConsumerState<ApiKeysScreen> {
   @override
   void initState() {
     super.initState();
-    _load();
+    Future<void>.microtask(_load);
   }
 
   Future<void> _load() async {
@@ -132,44 +132,46 @@ class _ApiKeysScreenState extends ConsumerState<ApiKeysScreen> {
       builder: (ctx) => StatefulBuilder(
         builder: (ctx, setDialogState) => AlertDialog(
           title: const Text('Новый API-ключ'),
-          content: Form(
-            key: formKey,
-            autovalidateMode: AutovalidateMode.onUserInteraction,
-            child: Column(
-              mainAxisSize: MainAxisSize.min,
-              children: [
-                TextFormField(
-                  controller: nameCtrl,
-                  decoration: const InputDecoration(
-                    labelText: 'Имя ключа',
-                    hintText: 'Например: Гость',
+          content: SingleChildScrollView(
+            child: Form(
+              key: formKey,
+              autovalidateMode: AutovalidateMode.onUserInteraction,
+              child: Column(
+                mainAxisSize: MainAxisSize.min,
+                children: [
+                  TextFormField(
+                    controller: nameCtrl,
+                    decoration: const InputDecoration(
+                      labelText: 'Имя ключа',
+                      hintText: 'Например: Гость',
+                    ),
+                    autofocus: true,
+                    validator: (value) {
+                      final normalized = value?.trim() ?? '';
+                      if (normalized.isEmpty) {
+                        return 'Укажите имя ключа';
+                      }
+                      if (normalized.length < 2) {
+                        return 'Слишком короткое имя';
+                      }
+                      return null;
+                    },
                   ),
-                  autofocus: true,
-                  validator: (value) {
-                    final normalized = value?.trim() ?? '';
-                    if (normalized.isEmpty) {
-                      return 'Укажите имя ключа';
-                    }
-                    if (normalized.length < 2) {
-                      return 'Слишком короткое имя';
-                    }
-                    return null;
-                  },
-                ),
-                const SizedBox(height: 12),
-                SwitchListTile(
-                  title: const Text('Дать права администратора'),
-                  subtitle: const Text(
-                    'Используйте только для доверенных людей',
+                  const SizedBox(height: 12),
+                  SwitchListTile(
+                    title: const Text('Дать права администратора'),
+                    subtitle: const Text(
+                      'Используйте только для доверенных людей',
+                    ),
+                    value: isAdmin,
+                    activeThumbColor: Colors.deepOrange,
+                    onChanged: isCreating
+                        ? null
+                        : (value) => setDialogState(() => isAdmin = value),
+                    contentPadding: EdgeInsets.zero,
                   ),
-                  value: isAdmin,
-                  activeThumbColor: Colors.deepOrange,
-                  onChanged: isCreating
-                      ? null
-                      : (value) => setDialogState(() => isAdmin = value),
-                  contentPadding: EdgeInsets.zero,
-                ),
-              ],
+                ],
+              ),
             ),
           ),
           actions: [
@@ -232,7 +234,9 @@ class _ApiKeysScreenState extends ConsumerState<ApiKeysScreen> {
       ),
     );
 
-    nameCtrl.dispose();
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      nameCtrl.dispose();
+    });
   }
 
   Future<void> _revokeKey(ApiKeyInfo data) async {

lib/screens/remote_screen.dart

@@ -22,15 +22,18 @@ class RemoteScreen extends ConsumerStatefulWidget {
 }
 
 class _RemoteScreenState extends ConsumerState<RemoteScreen> {
+  late final GroupsNotifier _groupsNotifier;
+
   @override
   void initState() {
     super.initState();
-    Future.microtask(() => ref.read(groupsProvider.notifier).startPolling());
+    _groupsNotifier = ref.read(groupsProvider.notifier);
+    Future.microtask(_groupsNotifier.startPolling);
   }
 
   @override
   void dispose() {
-    ref.read(groupsProvider.notifier).stopPolling();
+    _groupsNotifier.stopPolling(resetStatus: false);
     super.dispose();
   }
 

lib/screens/schedules_screen.dart

@@ -21,7 +21,7 @@ class _SchedulesScreenState extends ConsumerState<SchedulesScreen> {
   @override
   void initState() {
     super.initState();
-    _load();
+    Future<void>.microtask(_load);
   }
 
   Future<void> _load() async {