feat(ui): écran Historique des séances

Ajoute l'écran d'historique des séances (presentation/history_screen.dart),
avec les ajustements application/domaine/repositories nécessaires et la
navigation depuis l'accueil. Complète le dernier écran du périmètre UI.
flutter analyze propre, 18/18 tests verts, build APK debug validé.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

lib/application/app_bootstrap.dart

@@ -10,6 +10,7 @@ final class AppBootstrap {
     required this.workoutTemplateUseCases,
     required this.activeWorkoutSessionUseCases,
     required this.closeWorkoutSessionUseCase,
+    required this.workoutHistoryUseCases,
   });
 
   final AppDatabase database;
@@ -19,6 +20,7 @@ final class AppBootstrap {
   final WorkoutTemplateUseCases workoutTemplateUseCases;
   final ActiveWorkoutSessionUseCases activeWorkoutSessionUseCases;
   final CloseWorkoutSessionUseCase closeWorkoutSessionUseCase;
+  final WorkoutHistoryUseCases workoutHistoryUseCases;
 
   static Future<AppBootstrap> create() async {
     final database = AppDatabase.open();
@@ -77,6 +79,10 @@ final class AppBootstrap {
         ids: ids,
         originDeviceId: originDeviceId,
       ),
+      workoutHistoryUseCases: WorkoutHistoryUseCases(
+        repository: historyRepository,
+        clock: clock,
+      ),
     );
   }