feat: Add player position tracking endpoints for updates and retrieval

server/server.js

@@ -760,6 +760,56 @@ app.post('/api/groups/:groupId/command', (req, res) => {
   }
 });
 
+// Player position endpoints
+app.post('/api/player/update', (req, res) => {
+  try {
+    const { playerID, position, timestamp } = req.body;
+    
+    if (!playerID || !position) {
+      return res.status(400).json({ error: 'Missing playerID or position' });
+    }
+
+    db.savePlayerPosition(playerID, position);
+    
+    // Broadcast to WebSocket clients
+    broadcastToClients({
+      type: 'player_update',
+      playerID,
+      position,
+      timestamp: timestamp || Date.now()
+    });
+
+    res.json({ success: true, playerID, position });
+  } catch (error) {
+    console.error('Error updating player position:', error);
+    res.status(500).json({ error: error.message });
+  }
+});
+
+app.get('/api/players', (req, res) => {
+  try {
+    const players = db.getAllPlayerPositions();
+    res.json(players);
+  } catch (error) {
+    res.status(500).json({ error: error.message });
+  }
+});
+
+app.get('/api/player/:id', (req, res) => {
+  try {
+    const playerId = parseInt(req.params.id);
+    const player = db.getPlayerPosition(playerId);
+    
+    if (!player) {
+      return res.status(404).json({ error: 'Player not found' });
+    }
+    
+    res.json(player);
+  } catch (error) {
+    res.status(500).json({ error: error.message });
+  }
+});
+
 // Graceful shutdown
 process.on('SIGINT', () => {
   console.log('\n🛑 Shutting down server...');