Fix: Allow clicking through open doors

- Filter invisible doors from raycast intersection tests
- Open doors no longer block mouse clicks on tiles behind them
- Players can now select and move to tiles visible through open doorways
- Fixes issue where opened doors acted as invisible collision barriers for UI interaction

src/main.js

@@ -1385,7 +1385,8 @@ window.addEventListener('pointerdown', (event) => {
         const allDoors = [];
         Object.values(SESSION.roomMeshes).forEach(roomData => {
             if (roomData.doors) {
-                allDoors.push(...roomData.doors);
+                // Solo incluir puertas visibles (cerradas) en el raycast
+                allDoors.push(...roomData.doors.filter(door => door.visible));
             }
         });