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/screens/AskScreen.tsx

@@ -1,9 +1,10 @@
 import { useEffect, useRef, useState } from 'react';
 import { motion } from 'motion/react';
 import { BookOpen, MessageSquarePlus, RotateCw, Send, ThumbsDown, ThumbsUp } from 'lucide-react';
-import { api } from '@/api';
+import { api, ApiError } from '@/api';
 import { useAppData } from '@/state/AppData';
 import { askStore, useAskState, type ChatMessage } from '@/state/askStore';
+import { useNav } from '@/nav/Navigator';
 import { SeyarMascot } from '@/mascots/SeyarMascot';
 import { useToast } from '@/components/Toast';
 import { Screen, ScreenHeader } from '@/components/ui';
@@ -92,10 +93,13 @@ export function AskScreen({ lessonId, questionId, prompt }: { lessonId?: number;
       askStore.setConversation(done.conversationId);
       setQuota(done.remainingQuota);
     } catch (err) {
+      // سقفِ روزانه (نه throttleِ چندثانیه‌ای): «دوباره» تا فردا بی‌فایده است.
+      const quotaReached = err instanceof ApiError && err.isRateLimited && err.detail.includes('سوال');
       askStore.update(replyId, {
         text: friendlyError(err, 'جوابی نرسید'),
-        failedQuestion: question,
+        ...(quotaReached ? { quotaReached: true } : { failedQuestion: question }),
       });
+      if (quotaReached) setQuota(0);
     } finally {
       setBusy(false);
     }
@@ -263,6 +267,7 @@ function Message({
   onFollowUp: (q: string) => void;
 }) {
   const toast = useToast();
+  const nav = useNav();
 
   if (message.role === 'user') return <Bubble role="user"><MathText text={message.text} /></Bubble>;
 
@@ -286,7 +291,11 @@ function Message({
         <MathText text={message.text} />
       </Bubble>
       <div className="flex flex-wrap items-center gap-2 pr-10">
-        {message.failedQuestion ? (
+        {message.quotaReached ? (
+          <button type="button" onClick={() => nav.switchTab('subscription')} className="rounded-full bg-violet px-3 py-1 text-xs font-bold text-white">
+            دیدنِ اشتراک‌ها
+          </button>
+        ) : message.failedQuestion ? (
           <button type="button" disabled={busy} onClick={() => onRetry(message)} className="flex items-center gap-1 rounded-full bg-white px-3 py-1 text-xs font-bold text-coral ring-1 ring-line disabled:opacity-50">
             <RotateCw size={12} /> دوباره امتحان کن
           </button>