fix: no carregava correctament data/shapes/jailgames.png si s'executava desde fora del directori de l'executable

source/shapes/png_shape.cpp

@@ -9,6 +9,7 @@
 PNGShape::PNGShape(const char* png_path) {
     // Cargar PNG desde path
     if (!loadPNG(png_path)) {
+        std::cerr << "[PNGShape] Usando fallback 10x10" << std::endl;
         // Fallback: generar un cuadrado simple si falla la carga
         image_width_ = 10;
         image_height_ = 10;
@@ -20,10 +21,12 @@ PNGShape::PNGShape(const char* png_path) {
 }
 
 bool PNGShape::loadPNG(const char* path) {
+    std::cout << "[PNGShape] Intentando cargar: " << path << std::endl;
     int width, height, channels;
     unsigned char* data = stbi_load(path, &width, &height, &channels, 1);  // Forzar 1 canal (grayscale)
 
     if (!data) {
+        std::cerr << "[PNGShape] ERROR al cargar PNG: " << stbi_failure_reason() << std::endl;
         return false;
     }