feat: add random rotation to 4x4 rooms for visual variety

src/main.js

@@ -1593,6 +1593,14 @@ async function renderRoom(room) {
     tileMesh.position.z = originPos.z + (worldHeight / 2) - (CONFIG.CELL_SIZE / 2);
     tileMesh.position.y = 0;
 
+    // Random rotation for 4x4 rooms to add variety
+    if (tileDef.id.includes('room_4x4')) {
+        const rotations = [0, Math.PI / 2, Math.PI, Math.PI * 1.5];
+        const randomRotation = rotations[Math.floor(Math.random() * rotations.length)];
+        tileMesh.rotation.z = randomRotation;
+        console.log(`[DEBUG] Room ${room.id} rotated ${(randomRotation * 180 / Math.PI).toFixed(0)}°`);
+    }
+
     console.log(`[DEBUG] renderRoom ${room.id} | MeshPos:`, tileMesh.position);
 
     scene.add(tileMesh);