parent report page with two charts, Jalali birth date picker, user ID and invoices in profile

- the parents section is gone: no parent login, invite codes or "I'm a parent" button;
  "گزارشِ والدین" in the profile shows the week against the previous one (praise line,
  six tiles, minutes-per-day and right/wrong-per-day charts, a table of the numbers)
- birth date as day / month / year selects (Jalali, leap Esfand handled) instead of age;
  adults (19+) are asked which grade's math they want to learn
- user ID under the name, copyable
- "پرداخت‌ها و فاکتورها": every order with invoice number, discount, amount and reference code
- tutor: when the free daily quota runs out, a button to the subscription page instead of "retry"

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

src/app/MainApp.tsx

@@ -26,13 +26,14 @@ function screen<M extends Record<K, ComponentType<any>>, K extends keyof M>(load
 }
 const AskScreen = screen(() => import('@/screens/AskScreen'), 'AskScreen');
 const CharactersScreen = screen(() => import('@/screens/CharactersScreen'), 'CharactersScreen');
-const FamilyScreen = screen(() => import('@/screens/FamilyScreen'), 'FamilyScreen');
 const InviteScreen = screen(() => import('@/screens/InviteScreen'), 'InviteScreen');
+const InvoicesScreen = screen(() => import('@/screens/InvoicesScreen'), 'InvoicesScreen');
 const LeaderboardScreen = screen(() => import('@/screens/LeaderboardScreen'), 'LeaderboardScreen');
 const LessonScreen = screen(() => import('@/screens/LessonScreen'), 'LessonScreen');
 const MapScreen = screen(() => import('@/screens/MapScreen'), 'MapScreen');
 const NotificationsScreen = screen(() => import('@/screens/NotificationsScreen'), 'NotificationsScreen');
 const ProfileScreen = screen(() => import('@/screens/ProfileScreen'), 'ProfileScreen');
+const ReportScreen = screen(() => import('@/screens/ReportScreen'), 'ReportScreen');
 const QuizScreen = screen(() => import('@/screens/QuizScreen'), 'QuizScreen');
 const StreakScreen = screen(() => import('@/screens/StreakScreen'), 'StreakScreen');
 const SubscriptionScreen = screen(() => import('@/screens/SubscriptionScreen'), 'SubscriptionScreen');
@@ -52,18 +53,16 @@ interface Props {
   profile: UserProfile;
   grades: Grade[];
   payment: PaymentReturn | null;
-  /** صفحه‌ی شروع؛ برای والد بخشِ والدین است. */
-  start?: Route;
   onSignedOut: () => void;
   onRegistered: (profile: UserProfile) => Promise<void>;
 }
 
 /** اپِ اصلی بعد از ورود: تب‌ها، صفحه‌ها و داده‌ی مشترک. */
-export function MainApp({ profile, grades, payment, start, onSignedOut, onRegistered }: Props) {
+export function MainApp({ profile, grades, payment, onSignedOut, onRegistered }: Props) {
   useEffect(preloadScreens, []);
   return (
     <AppDataProvider initialProfile={profile} grades={grades}>
-      <NavigatorProvider initial={start ?? { name: payment ? 'subscription' : 'home' }}>
+      <NavigatorProvider initial={{ name: payment ? 'subscription' : 'home' }}>
         <Screens onSignedOut={onSignedOut} onRegistered={onRegistered} />
         {payment && <PaymentResult payment={payment} />}
       </NavigatorProvider>
@@ -114,7 +113,8 @@ function RouteView({ route, onSignedOut, onRegistered }: { route: Route } & Pick
     case 'characters': return <CharactersScreen />;
     case 'streak': return <StreakScreen />;
     case 'support': return <SupportScreen />;
-    case 'family': return <FamilyScreen onSignedOut={onSignedOut} />;
+    case 'report': return <ReportScreen />;
+    case 'invoices': return <InvoicesScreen />;
     case 'invite': return <InviteScreen />;
     case 'register': return <RegisterView onRegistered={onRegistered} />;
   }