fix(03-03): resolve dart analyze warnings in test files

- Remove unused drift import in daily_plan_dao_test
- Fix unused local variable in tasks_dao_test
- Switch ProviderScope to UncontrolledProviderScope in home_screen_test
  and app_shell_test to resolve riverpod_lint scoped_providers warning

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

test/features/home/data/daily_plan_dao_test.dart

@@ -1,4 +1,3 @@
-import 'package:drift/drift.dart';
 import 'package:drift/native.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:household_keeper/core/database/database.dart';

test/features/home/presentation/home_screen_test.dart

@@ -52,16 +52,21 @@ TaskWithRoom _makeTaskWithRoom({
 }
 
 /// Build the app with dailyPlanProvider overridden to the given state.
+///
+/// Uses [UncontrolledProviderScope] with a [ProviderContainer] to avoid
+/// the riverpod_lint scoped_providers_should_specify_dependencies warning.
 Widget _buildApp(DailyPlanState planState) {
-  return ProviderScope(
+  final container = ProviderContainer(overrides: [
-    overrides: [
     dailyPlanProvider.overrideWith(
       (ref) => Stream.value(planState),
     ),
     roomWithStatsListProvider.overrideWith(
       (ref) => Stream.value([]),
     ),
-    ],
+  ]);
+
+  return UncontrolledProviderScope(
+    container: container,
     child: MaterialApp.router(
       routerConfig: router,
       localizationsDelegates: AppLocalizations.localizationsDelegates,

test/features/tasks/data/tasks_dao_test.dart

@@ -74,7 +74,7 @@ void main() {
     });
 
     test('updateTask changes name, description, interval, effort', () async {
-      final id = await db.tasksDao.insertTask(
+      await db.tasksDao.insertTask(
         TasksCompanion.insert(
           roomId: roomId,
           name: 'Abspuelen',

test/shell/app_shell_test.dart

@@ -16,9 +16,11 @@ void main() {
     });
 
     /// Helper to build the app with providers overridden for testing.
+    ///
+    /// Uses [UncontrolledProviderScope] with a [ProviderContainer] to avoid
+    /// the riverpod_lint scoped_providers_should_specify_dependencies warning.
     Widget buildApp() {
-      return ProviderScope(
+      final container = ProviderContainer(overrides: [
-        overrides: [
         // Override the stream provider to return an empty list immediately
         // so that the rooms screen shows the empty state without needing a DB.
         roomWithStatsListProvider.overrideWith(
@@ -35,7 +37,10 @@ void main() {
             totalTodayCount: 0,
           )),
         ),
-        ],
+      ]);
+
+      return UncontrolledProviderScope(
+        container: container,
         child: MaterialApp.router(
           routerConfig: router,
           localizationsDelegates: AppLocalizations.localizationsDelegates,