Notifications: deep-link on tap + swipe-to-dismiss

Each notification now navigates to its related screen when tapped (toast or
list): friend_request/invite -> Friends, achievement/reward -> Achievements,
daily -> opens the daily-reward modal, coin-purchase success -> Shop. An
explicit per-notification 'route' overrides the kind default.

List rows are swipeable (drag aside) and have an X to dismiss individually,
plus a Clear-all button; the toast can be flicked up to dismiss or tapped to
open. New store actions: markRead/remove/clearAll + openNotification navigator.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/lib/i18n.tsx

@@ -320,6 +320,9 @@ const fa: Dict = {
 
   "notif.title": "اعلان‌ها",
   "notif.empty": "اعلانی ندارید",
+  "notif.clearAll": "پاک کردن همه",
+  "notif.swipeHint": "برای حذف، اعلان را به کناری بکشید",
+  "notif.tapToOpen": "برای مشاهده بزنید",
 
   "settings.audio": "تنظیمات صدا",
   "settings.sound": "افکت صدا",
@@ -653,6 +656,9 @@ const en: Dict = {
 
   "notif.title": "Notifications",
   "notif.empty": "No notifications yet",
+  "notif.clearAll": "Clear all",
+  "notif.swipeHint": "Swipe a notification aside to dismiss it",
+  "notif.tapToOpen": "Tap to open",
 
   "settings.audio": "Audio",
   "settings.sound": "Sound effects",