- Chess bots are court cards: the bot's initial printed large in red or black
  ink by strength, name plate, a one-line personality, the rating band as the
  corner index; the strongest carries a crown.
- Time controls are printed cards grouped by bullet, blitz, rapid, classical.
- Matchmaking shows a face-down deck riffling while the clock counts.
- Challenge-a-friend rows, a card-stock options sheet; the pre-game lobby shows
  you and your opponent as two player cards, the opponent face down until they
  accept. The lobby's clock chip now shows the real control; every classical
  control used to read 30 minutes.
- Ludo, domino and backgammon rooms: chip groups printed on card stock when
  chosen, ludo seats in each player's ink, one red start button. Domino bot
  setup is one screen (level and target, then start) instead of two steps.
- PRODUCT.md: El3ab is a game, not an app; binding for every screen.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>