Fix dead guard not spawning at the beginning of the level

Signed-off-by: Hans Kokx <hans.d.kokx@gmail.com>

packages/wolf_3d_entities/lib/src/entities/enemies/enemy.dart

@@ -318,6 +318,10 @@ abstract class Enemy extends Entity {
     // 1. Check Difficulty & Compatibility
     if (!MapObject.shouldSpawn(objId, difficulty)) return null;
 
+    // Explicitly ignore "Dead Guard" Map ID so Decorative.trySpawn can handle it
+    // In Wolf3D, 124 is the dead guard.
+    if (objId == 124) return null;
+
     // If the checkbox is checked, block non-Shareware enemies
     if (isSharewareMode && !MapObject.isSharewareCompatible(objId)) return null;