migrate from std::filesystem::path to io::path (WIP)

src/core_defs.hpp

@@ -28,9 +28,8 @@ inline const std::string BIND_PLAYER_FAST_INTERACTOIN =
     "player.fast_interaction";
 inline const std::string BIND_HUD_INVENTORY = "hud.inventory";
 
-class EnginePaths;
 class ContentBuilder;
 
 namespace corecontent {
-    void setup(const EnginePaths& paths, ContentBuilder& builder);
+    void setup(ContentBuilder& builder);
 }