Path SDL3 GPU amb PostFX passthrough; Screen amb init/shutdown explicit (v0.4.0)

source/utils/defaults.hpp

@@ -32,6 +32,8 @@ namespace Defaults {
         constexpr bool VSYNC = true;
         constexpr ScalingMode SCALING_MODE = ScalingMode::LETTERBOX;
         constexpr TextureFilter TEXTURE_FILTER = TextureFilter::NEAREST;
+        constexpr bool GPU_ACCELERATION = true;           // Path SDL3 GPU per defecte; fallback a SDL_Renderer si falla.
+        constexpr const char* GPU_PREFERRED_DRIVER = "";  // Buit = auto. Aplica a l'arrencada.
     }  // namespace Video
 
     namespace Audio {

source/utils/defines.hpp

@@ -3,7 +3,7 @@
 namespace Texts {
     constexpr const char* WINDOW_TITLE = "© 2026 Aventures en Egipte — JailDesigner";
     constexpr const char* COPYRIGHT = "© 2026 JailDesigner";
-    constexpr const char* VERSION = "0.3.0";  // Single source of truth — Makefile el grep
+    constexpr const char* VERSION = "0.4.0";  // Single source of truth — Makefile el grep
 }  // namespace Texts
 
 namespace GameCanvas {