Calmer shop with payment choice, step-by-step phone back, sound/haptics that reach the phone, live streak flame

- Shop: subscription perks shown once (each card repeated them, «۳ سوال در روز» twice), plans as selectable
  rows with one big buy button, prices as «۷۹۸ هزار تومان», a single clear status card for subscribers.
  Checkout inside the Bazaar app offers «کارتِ بانکی» (default) or «کافه‌بازار» for packs with a SKU;
  «به‌زودی در بازار» is gone. The gateway opens in the phone browser; status refreshes on return.
- Back button: every back-able level (open sheet, pushed screen, non-home tab, shop list) owns exactly one
  history entry created right after the tap; back closes the sheet, then the screen, then returns to Home,
  then leaves the app. (A re-pushed trap is skipped by Chrome's history intervention.)
- Sound: AudioContext unlocked on the first touch (it was created after a network wait, which WebView/Safari
  keep muted); softer notes, option tick, finish fanfare, streak whoosh. Haptics through the new
  TadrisinoAndroid.vibrate bridge when the APK has it, navigator.vibrate otherwise.
- Streak: animated flame with lit / at-risk (grey) / frozen (ice) states on Home and the streak screen,
  a companion reminder when the streak is at risk or frozen, and a full-screen «روزِ پیاپی» celebration
  after the first lesson of the day (needs backend 9024c6b: streak.activeToday / lost).
- Lessons: intro/example text with inline «۱. … ۲. …» renders as a numbered list (2,250 of 4,469 texts).
- Quiz: duplicate React key on the answer bubble fixed.
- android/MainActivity.kt: vibrate bridge and mediaPlaybackRequiresUserGesture=false. Not built; needs the
  next APK from the signing owner.

Checked in headless Chrome against the local backend (shop as a subscriber with the Bazaar bridge stubbed,
back sequences, quiz → streak celebration, frozen state). Not checked on a real phone or in the APK.

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

src/screens/HomeScreen.tsx

@@ -13,6 +13,7 @@ import { toFa } from '@/lib/format';
 import { MathText } from '@/lib/MathText';
 import { BrandFooter } from '@/components/BrandFooter';
 import { BrandMark } from '@/components/BrandMark';
+import { StreakFlame, flameState } from '@/components/StreakFlame';
 
 /**
  * خانه = خودِ مسیر، مثلِ دولینگو: همه‌ی فصل‌های پایه پشتِ هم، و جزیره‌ی فعلی با
@@ -38,11 +39,24 @@ export function HomeScreen() {
   }, [home]);
 
   const name = profile.name || 'دوستِ من';
+  const flame = flameState(summary?.streak);
+  const streak = summary?.streak;
+  // زنجیره‌ی در خطر یا یخ‌زده جلوتر از پیامِ معمول می‌آید: از دست دادن انگیزه‌ی قوی‌تری از به‌دست آوردن است،
+  // ولی لحن مهربان می‌ماند و قدمِ بعدی را می‌گوید.
+  const streakNote = cont && streak
+    ? flame === 'frozen'
+      ? <>{name}، زنجیره‌ی {toFa(streak.lost)} روزه‌ت یخ زد <StreakFlame state="frozen" size={14} className="mb-0.5 inline" /> یه جزیره بزن تا دوباره آتیشش روشن بشه!</>
+      : flame === 'risk'
+        ? <>{name}، امروز هنوز تمرین نکردی! زنجیره‌ی {toFa(streak.current)} روزه‌ت منتظرته <StreakFlame state="lit" size={14} className="mb-0.5 inline" /></>
+        : null
+    : null;
   const bubble = !home
     ? 'دارم مسیرت رو میارم…'
     : !home.units.length
       ? 'هنوز درسی برای این پایه ثبت نشده.'
-      : cont
+      : streakNote
+        ? streakNote
+        : cont
         ? <>سلام {name}! <Hand size={15} className="mb-0.5 inline text-[#E8A400]" /> وقتشه جزیره‌ی <b>«<MathText text={cont.node.title} />»</b> رو شروع کنی؛ دکمه‌ی <b>شروع</b> رو بزن.</>
         : <>آفرین {name}! همه‌ی جزیره‌های این پایه رو تموم کردی <PartyPopper size={15} className="mb-0.5 inline text-[#E8A400]" /></>;
 
@@ -69,10 +83,10 @@ export function HomeScreen() {
                 type="button"
                 aria-label={`${label}: ${toFa(value)}`}
                 onClick={() => nav.push({ name: to })}
-                className="hit flex items-center gap-1 rounded-full bg-white px-2.5 py-1.5 text-xs font-black text-ink shadow-sm active:scale-95"
+                className={`hit flex items-center gap-1 rounded-full px-2.5 py-1.5 text-xs font-black shadow-sm active:scale-95 ${to === 'streak' && flame === 'frozen' ? 'bg-[#E6F6FF] text-[#2B7FB8]' : 'bg-white text-ink'}`}
               >
-                <Icon size={15} style={{ color }} fill={fill ? color : 'none'} strokeWidth={2.4} />
-                {toFa(value)}
+                {to === 'streak' ? <StreakFlame state={flame} size={13} /> : <Icon size={15} style={{ color }} fill={fill ? color : 'none'} strokeWidth={2.4} />}
+                {toFa(to === 'streak' && flame === 'frozen' ? streak?.lost ?? 0 : value)}
               </button>
             ))}
             <button type="button" aria-label="اعلان‌ها" onClick={() => nav.push({ name: 'notifications' })} className="hit relative flex h-8 w-8 items-center justify-center rounded-full bg-white/20 active:scale-95">