All 690 stiff or wordy Arabic lines of i18n.js now read the way an Egyptian
game talks: ماتش، كسبت، البوت، ليفل، أونلاين، لايف، الباسورد، إنت;
بنـ… for "loading", اتـ… for "done", مفيش for "none". Chess speaks like
Egyptian players (العسكري، كش مات، بولت/بليتز); domino too (دقّ، الدُش).
Meaning fixes: checkmate read "check"; a domino tip gave the opposite
advice; the master rank shared the legendary rarity's word; a bye read
like a promotion.

Found by the suites:
- Eight sign-in errors had no strings (auth.err_*): a failed login showed
  the raw key. Added in both languages.
- Domino: when the other player reported a too-short match first, the
  winner saw 0 coins with no reason. The server now says too_short to the
  later reporter as well.
- Ludo: the knocked-over pawn on a last place sank under the finishing
  order; it rests inside its box now, at every phone height.
- Tests: the ludo sticker check accepts the fallen pawn; the chess puzzle
  failure step copes with a position that has no wrong, non-mating move.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>