Phase 4: getPipCount now accepts variant param (fixes wrong pip count for
thirtyone variant), backgammon quit button shows confirmation dialog in
live mode.

Phase 3: syncPassToServer no longer pre-increments moveCount before network
success, winners array guards against empty state.players.

Phase 2: ludo bot "thinking" indicator uses dedicated .pp-status span
instead of clobbering the player name.

Phase 6: chat.php unread/recent queries batched into single DB calls
instead of N+1 per friendship.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>