fix: ajustes de rutas y guards en vscode, rc y gpu_pipeline

- c_cpp_properties.json: añadir build/generated_shaders a includePath
- vibe3.rc: corregir ruta del icono a release/icons/icon.ico
- gpu_pipeline.cpp: envolver shaders MSL con guard #ifdef __APPLE__

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.vscode/c_cpp_properties.json

@@ -5,6 +5,7 @@
             "includePath": [
                 "${workspaceFolder}/source",
                 "${workspaceFolder}/source/external",
+                "${workspaceFolder}/build/generated_shaders",
                 "${env:HOMEBREW_PREFIX}/include",
                 "/opt/homebrew/include"
             ],
@@ -25,6 +26,7 @@
             "includePath": [
                 "${workspaceFolder}/source",
                 "${workspaceFolder}/source/external",
+                "${workspaceFolder}/build/generated_shaders",
                 "/usr/include",
                 "/usr/local/include"
             ],
@@ -41,6 +43,7 @@
             "includePath": [
                 "${workspaceFolder}/source",
                 "${workspaceFolder}/source/external",
+                "${workspaceFolder}/build/generated_shaders",
                 "C:/mingw/include"
             ],
             "defines": [

release/windows/vibe3.rc

@@ -1,2 +1,2 @@
 // coffee.rc
-IDI_ICON1 ICON "icon.ico"
+IDI_ICON1 ICON "release/icons/icon.ico"

source/gpu/gpu_pipeline.cpp

@@ -15,6 +15,7 @@
 #include "ball_vert_spv.h"
 #endif
 
+#ifdef __APPLE__
 // ============================================================================
 // MSL Shaders (Metal Shading Language, macOS)
 // ============================================================================
@@ -197,6 +198,7 @@ vertex BallVOut ball_instanced_vs(BallInstance inst [[stage_in]],
     return out;
 }
 )";
+#endif // __APPLE__
 
 // ============================================================================
 // GpuPipeline implementation