auth: store-review test login + matchmaking no-hang/watchdog

- OtpService: a designated test phone (default 09120000000 / code 453115,
  overridable via Sms__TestPhone/Sms__TestCode) skips real SMS and always
  verifies — for Google Play / Bazaar / Myket reviewers. Give them these creds.
- Matchmaking UX: tapping a league now navigates to the matchmaking screen
  BEFORE awaiting the SignalR handshake, so the button can't freeze. Added a
  watchdog hint after 28s ("connection took too long, cancel & retry") so it
  never spins forever when the hub doesn't connect.

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

src/lib/i18n.tsx

@@ -256,6 +256,7 @@ const fa: Dict = {
   "mm.found": "بازیکنان پیدا شدند!",
   "mm.ready": "آماده شروع",
   "mm.fillHint": "اگر بازیکن آنلاینی پیدا نشود، ربات‌ها جایگزین می‌شوند",
+  "mm.stuck": "اتصال به سرور طول کشید. لطفاً «لغو» را بزنید و دوباره تلاش کنید.",
   "intro.found": "بازیکنان آماده‌اند!",
   "intro.getReady": "بازی در حال شروع است…",
   "intro.go": "شروع!",
@@ -642,6 +643,7 @@ const en: Dict = {
   "mm.found": "Players found!",
   "mm.ready": "Ready to start",
   "mm.fillHint": "If no online players are found, bots will fill in",
+  "mm.stuck": "Connecting to the server is taking too long. Tap Cancel and try again.",
   "mm.cancel": "Cancel",
   "mm.start": "Enter game",