Create room 047 (Genesta's Palace Entry Hall) and wire transitions

- Added kq4_047_genestas_palace_entry_hall scene
- South exit to room 037 (Fairy Island) - bidirectional connection
- East exit to room 046 (Tower Stairway) - bidirectional connection
- Updated room 037 to add return transition to room 047
- Updated room 046 to fix transition to room 047

scenes/kq4_046_tower_stairway/kq4_046_tower_stairway.tscn

@@ -41,7 +41,7 @@ position = Vector2(194, 819)
 position = Vector2(910, -213)
 polygon = PackedVector2Array(-108, 454, -87, 649, 376, 658, 348, 381)
 appear_at_node = "kq4_046_tower_stairway"
-target = "uid://PLACEHOLDER_047"
+target = "uid://1le54ydit88w8"
 label = "Tower Chamber"
 
 [node name="entrance" parent="kq4_047_tower_chamber" index="0"]