Stage 5: History, the shared daily Streak and Reminders

- Streak computed from all complete Sessions: Grace Hour (00:00-01:00
  counts for yesterday unless it is done), a Freeze per 7 Streak Days
  (max 2) spent automatically on a missed day (ADR 0006)
- Top bar flame (grey until today is done) opening a panel with current
  and longest Streak, Freezes and a month calendar; 'Day N of your
  streak' on a fresh summary
- History per Mode grouped by day, reopening each summary
- Two adjustable Reminders (19:00, 22:30) scheduled 14 days ahead with
  flutter_local_notifications, none on a done day; permission asked
  after the first complete Session or from Settings
- Settings: Reminders, the Player chime, exercise credits

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

test/views/player_view_test.dart

@@ -12,6 +12,7 @@ void main() {
   late PlanRepository plans;
   late SessionRepository sessions;
   late FakePlayerEffects effects;
+  late FakeNotifier notifier;
 
   setUp(() {
     final db = testDatabase();
@@ -19,13 +20,21 @@ void main() {
     plans = PlanRepository(db);
     sessions = SessionRepository(db);
     effects = FakePlayerEffects();
+    notifier = FakeNotifier();
   });
 
   Future<void> startPlan(WidgetTester tester, Mode mode, List<PlanItem> items) async {
     final plan = await plans.create(mode, 'Routine');
     await plans.save(plan.copyWith(items: items));
     usePhoneScreen(tester);
-    await pumpApp(tester, plans: plans, sessions: sessions, effects: effects, prefs: {'mode': mode.name});
+    await pumpApp(
+      tester,
+      plans: plans,
+      sessions: sessions,
+      effects: effects,
+      notifier: notifier,
+      prefs: {'mode': mode.name},
+    );
     await tester.tap(find.byTooltip('Start'));
     await tester.pump();
     await tester.pump();
@@ -66,6 +75,11 @@ void main() {
     await settle(tester);
 
     expect(find.text('Session complete'), findsOneWidget);
+    await tester.runAsync(() => Future<void>.delayed(const Duration(milliseconds: 50)));
+    await tester.pumpAndSettle();
+    expect(find.text('Day 1 of your streak'), findsOneWidget);
+    // The first finished Session is when Reminders ask for permission.
+    expect(notifier.permissionRequests, 1);
     expect(effects.chimes, [Mode.stretching, Mode.stretching]);
     expect(effects.screenOn, isFalse);
     expect((await sessionsOf(tester, Mode.stretching)).single.complete, isTrue);