feat(editor): mou la porta i persisteix geometry.door_col

CMakeLists.txt

@@ -116,6 +116,9 @@ set(APP_SOURCES
     source/game/map/map.cpp
     source/game/map/tilemap.cpp
     source/game/map/tilemap_writer.cpp
+    # Writer surgical de claus dins de `geometry:` (door_col), paral·lel
+    # al TilemapWriter. Només Debug.
+    source/game/map/map_writer.cpp
     source/game/map/paint_layer.cpp
     source/game/levels/level_manager.cpp
     # Mòdul editor (només activa contingut en Debug via `#ifdef _DEBUG`).