feat: wire multiplayer module into Chess and Ludo UI

Chess (live mode):
- Fetches opponent profile, shows real name in opponent bar
- Emotes sync to opponent via game_state (send + receive)
- Connection status monitored (green/yellow/red dot)
- Incoming emotes shown as floating animation
- mp.cleanup() on game end

Ludo (live mode):
- Emotes sync to opponent via ludo-match.php
- Connection status monitored
- Incoming emotes received and displayed
- Polling starts if not player's turn at game start

Both games:
- Fixed emoteWrap variable reference (was using wrong 'wrap')
- Shared multiplayer.js handles all common features
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

public/js/modules/chess/scenes/game.js

@@ -11,6 +11,7 @@ import * as juice from '../../../core/juice.js';
 import { getOpeningName } from '../logic/openings.js';
 import { getMaterialAdvantage, formatAdvantage } from '../logic/material.js';
 import * as emoteSystem from '../components/emotes.js';
+import * as mp from '../../../core/multiplayer.js';
 
 let board, clock, gameState;
 
@@ -153,10 +154,31 @@ export function mountGame(el, params) {
   if (mode === 'live' && matchId) {
     startLivePolling(el);
     if (playerColor === 'b') {
-      // Waiting for white's first move
       gameState.isPlayerTurn = false;
       clock.start('w');
     }
+
+    // Fetch and render opponent profile bar
+    const opponentId = params.opponentId || (playerColor === 'w' ? params.blackPlayerId : params.whitePlayerId);
+    if (opponentId) {
+      mp.fetchOpponentProfile(opponentId).then(opp => {
+        if (opp && !opp.error) {
+          const oppBar = el.querySelector('.chess-bar');
+          if (oppBar) {
+            const nameEl = oppBar.querySelector('#opponent-name');
+            if (nameEl) nameEl.textContent = opp.display_name || opp.username || 'خصم';
+          }
+        }
+      });
+    }
+    mp.startDisconnectWatch(matchId, 'chess', 60000);
+
+    // Synced emotes — send to opponent via server
+    mp.onEmoteReceived((emote) => {
+      const emoteContainer = el.querySelector('#board-container');
+      emoteSystem.showReceived(emoteContainer, emote.key === 'gg' ? '🤝' : emote.key === 'good_move' ? '👏' : '😮');
+      audio.play('notification');
+    });
   }
 
   // Emote system
@@ -164,6 +186,10 @@ export function mountGame(el, params) {
   emoteSystem.create(emoteContainer, (emote) => {
     audio.play('notification');
     emoteSystem.showReceived(emoteContainer, emote.emoji);
+    // Sync to opponent in live mode
+    if (gameState.mode === 'live' && matchId) {
+      mp.sendEmote(matchId, 'chess', emote.key);
+    }
   });
 
   bus.emit('game:started', { gameKey: 'chess', matchId, opponent: botId, mode });
@@ -444,13 +470,23 @@ function startLivePolling(el) {
       const data = await net.post('game.php', { action: 'get', match_id: gameState.matchId });
       if (!data || data.error) return;
 
+      // Update connection status (opponent is alive if data comes back)
+      mp.updateConnectionStatus(true);
+
+      // Check for synced emotes from opponent
+      const myId = store.get('auth.userId');
+      const emoteData = mp.checkForEmote(data.game_state, myId);
+      if (emoteData) {
+        const emoteContainer = el.querySelector('#board-container');
+        emoteSystem.showReceived(emoteContainer, emoteData.key === 'gg' ? '🤝' : '👏');
+        audio.play('notification');
+      }
+
       // Check if new move arrived
       if (data.move_count > lastKnownMoveCount) {
         lastKnownMoveCount = data.move_count;
-        // Apply opponent's move by loading the new FEN
         const newFen = data.current_fen;
         if (newFen && newFen !== engine.fen()) {
-          // Find what move was made by comparing positions
           engine.load(newFen);
           board.setPosition(newFen);
           audio.play('move', 'game');
@@ -485,6 +521,7 @@ function stopLivePolling() {
 function endGame(result, reason) {
   if (gameState.gameOver) return;
   stopLivePolling();
+  mp.cleanup();
   gameState.gameOver = true;
   clock.stop();
   board.interactive = false;

public/js/modules/ludo/scenes/game.js

@@ -8,6 +8,8 @@ import * as rules from '../logic/rules.js';
 import * as juice from '../../../core/juice.js';
 import { getPiecePosition, getHomeBasePosition, SAFE_SQUARES, HOME_COLUMNS, SHARED_PATH } from '../logic/board-map.js';
 import * as emoteSystem from '../../chess/components/emotes.js';
+import * as mp from '../../../core/multiplayer.js';
+import * as net from '../../../core/net.js';
 
 let game, validMoves, ctx, canvas, boardSize, cellSize;
 let diceAnimating = false;
@@ -82,13 +84,27 @@ export function mountGame(el, params) {
   updatePanels(el);
   el.querySelector('#roll-btn').addEventListener('click', () => handleRoll(el));
 
-  // Emotes
+  // Emotes + multiplayer
   const emoteWrap = el.querySelector('#ludo-wrap');
   emoteSystem.create(emoteWrap, (emote) => {
     audio.play('notification');
-    emoteSystem.showReceived(wrap, emote.emoji);
+    emoteSystem.showReceived(emoteWrap, emote.emoji);
+    if (game.mode === 'live' && matchId) {
+      mp.sendEmote(matchId, 'ludo', emote.key);
+    }
   });
 
+  // Live mode setup
+  if (mode === 'live' && matchId) {
+    mp.startDisconnectWatch(matchId, 'ludo', 60000);
+    mp.onEmoteReceived((emote) => {
+      emoteSystem.showReceived(emoteWrap, emote.key === 'gg' ? '🤝' : '👏');
+      audio.play('notification');
+    });
+    // If not my turn at start, begin polling
+    if (!isMyTurn()) handleNonPlayerTurn(el);
+  }
+
   bus.emit('game:started', { gameKey: 'ludo', mode });
 }