feat(train): a person's workouts opened with them (ADR 0030, D14, D15)

TrainPerson now opens the person's own sync database in their folder,
halkyon_app's SyncService behind AppCompatibility (the module's basics'
minimumAppBuild against the build package_info_plus reads), their key
and their workouts, and closes them in that order, the key last. As in
Learn, a person's data waits for the one before to close, since signing
in again opens the same database. The pubspec's dependencies are sorted
again (clock had gone before flutter).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>

apps/train/halkyon_train_flutter/test/app/train_app_test.dart

@@ -3,9 +3,14 @@ import 'package:halkyon_app/halkyon_app.dart';
 import 'package:halkyon_app/testing.dart';
 import 'package:halkyon_train_flutter/src/app/train_app.dart';
 import 'package:halkyon_train_flutter/src/app/train_dependencies.dart';
+import 'package:halkyon_train_flutter/src/core/privacy/train_keys.dart';
+import 'package:halkyon_train_flutter/src/feature/workout/data/workout_repository.dart';
 import 'package:halkyon_ui/halkyon_ui.dart';
 import 'package:material_ui/material_ui.dart';
 
+import '../support/memory_content_key_gateway.dart';
+import '../support/memory_workout_gateway.dart';
+
 void main() {
   final builtIn = Instance.parse('train.example.org')!;
   late MemoryInstanceStore store;
@@ -85,7 +90,17 @@ void main() {
               'https://code.halkyon.app/project-halkyon/halkyon',
           openPerson: (person) async {
             opened.add(person);
-            return TrainPerson(person);
+            return TrainPerson(
+              person,
+              workouts: WorkoutRepository(
+                MemoryWorkoutGateway(),
+                TrainKeys(
+                  MemoryContentKeyGateway(),
+                  FakeContentCipher(),
+                  () async => null,
+                ),
+              ),
+            );
           },
         ),
       ),